TWI849155B - Compositions containing coloring agents - Google Patents

Abstract

The subject of the present invention is to suppress the viscosity increase of a coloring curable composition containing a specific coloring agent. A composition is prepared in advance, that is, a composition containing a compound represented by the following formula (1a) as a coloring agent (A), and a resin (B1) containing a constituent unit (b1-1) represented by the following formula (1b) as a resin (B), and the content of the coloring agent (A) is 35% by weight to 70% by weight relative to the total amount of the solid components of the composition, and then a coloring curable composition is prepared using the composition, thereby suppressing the viscosity increase of the coloring curable composition (the definitions of the symbols in the following formula are as described in the manual).

Description

Compositions containing coloring agents

The present invention relates to a composition containing a coloring agent. The composition of the present invention is useful for manufacturing a colored curable composition.

Coloring curable compositions are used in the manufacture of color filters used in display devices such as liquid crystal display devices, electroluminescent display devices, and plasma displays, and a variety of compositions have been developed. For example, Patent Document 1 describes a resin composition for a color filter, which includes: a solvent, a reactive diluent, a photopolymerization initiator, a coloring agent, and a copolymer containing a constituent unit represented by formula (1).

[The definitions of symbols in formula (1) are as described in patent document 1]

[Prior art literature]

[Patent Literature]

[Patent Document 1] WO 2018/110097 A1

The inventors of the present invention have found that the coloring curable composition comprising a coloring agent (A), a resin (B), a polymerizable compound (C), a polymerization initiator (D) and a solvent (E) has a problem of increasing viscosity during storage depending on the type of coloring agent (A) used. The present invention is made with this in mind, and its purpose is to inhibit the viscosity increase of the coloring curable composition containing a specific coloring agent.

The present invention that can achieve the above-mentioned purpose is as follows.

[1] A composition comprising a colorant (A), a resin (B) and a solvent (E), wherein the colorant (A) comprises at least one selected from the group consisting of a compound represented by formula (1a), a compound represented by formula (2a) and a compound represented by formula (3a),

[In formula (1a), R ^41a and R ^42a each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^41a and R ^42a are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded, R 43a and R 44a each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^43a and R ^44a each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^{43a and R 44a} each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, R ^47a to R 54a are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atoms to which they are bonded, R ^47a to R ^54a are independently a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , or an alkyl group having 1 to 8 carbon atoms which may have a substituent, R ^f is a fluoroalkyl group having 1 to 12 carbon atoms, and the ring T ^1a represents an aromatic alkyl ring having 6 to 14 carbon atoms which may have a substituent or an aromatic heterocyclic ring having 5 to 10 members which may have a substituent, the saturated alkyl group having 1 to 20 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amino group, the aromatic alkyl group having 6 to 14 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and an alkyl group having 1 to 8 carbon atoms which may have a substituent, and the aralkyl group having 7 to 30 carbon atoms may have a substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and at least one of the group consisting of an alkyl group having 1 to 8 carbon atoms which may have a substituent, the aromatic hydrocarbon ring having 6 to 14 carbon atoms may have a substituent selected from a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and at least one of the group consisting of an alkyl group having 1 to 8 carbon atoms which may have a substituent, the 5-membered to 10-membered aromatic heterocyclic ring may have a substituent selected from a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and at least one of the group consisting of an alkyl group having 1 to 8 carbon atoms which may have a substituent, the alkyl group having 1 to 8 carbon atoms which may have a substituent is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amino group, when the saturated alkyl group having 1 to 20 carbon atoms is a saturated alkyl group having 2 to 20 carbon atoms, -CH ₂ - contained in the saturated alkyl group may be substituted with -O- or -CO-, when the alkyl group having 1 to 8 carbon atoms is an alkyl group having 2 to 8 carbon atoms, -CH ₂ - contained in the alkyl group may be substituted with -O- or -CO-, r represents an integer greater than 1, Mr ⁺ represents a hydrogen ion, an r-valent metal ion or N ⁺ (R ^55a ) ₄ , four R ^{55a s} may be the same or different, R ^55a represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms, or an aralkyl group having 7 to 10 carbon atoms; k represents the total number of -SO ₃ ^- and -SO ₂ -N ^- -SO ₂ -R ^f possessed by the anion represented by formula (1a-A), and is an integer greater than or equal to 2; [Chemical 3]

[In formula (1a-A), ring ^T1a , ^R41a to ^R44a and ^R47a to ^R54a have the same meanings as described above]

When r is an integer greater than 2, the multiple anions represented by formula (1a-A) may be the same or different, and when k-1 is an integer greater than 2, the multiple Mr ⁺ may be the same or different.]

[In formula (2a), R ^41b and R ^42b each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^41b and R ^42b are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded, R 43b and R 44b each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^43b and R ^44b each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 43b and R ^44b each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, R ^47b to R 54b are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atoms to which they are bonded, R ^47b to R ^54b are independently a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, or an alkyl group having 1 to 8 carbon atoms which may have a substituent, and the ring T ^1b represents an aromatic alkyl ring having 6 to 14 carbon atoms which may have a substituent or an aromatic heterocyclic ring having 5 to 10 members which may have a substituent, the saturated alkyl group having 1 to 20 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amino group, the aromatic alkyl group having 6 to 14 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group and an alkyl group having 1 to 8 carbon atoms which may have a substituent, and the aralkyl group having 7 to 30 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group and an alkyl group having 1 to 8 carbon atoms which may have a substituent , the aromatic alkyl ring having 6 to 14 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a methyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent, the aromatic heterocyclic ring having 5 to 10 members may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a methyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent, the alkyl group having 1 to 8 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a methyl group, and an amino group, and when the saturated alkyl group having 1 to 20 carbon atoms is a saturated alkyl group having 2 to 20 carbon atoms, the -CH _2- may be substituted with -O- or -CO-, when the alkyl group having 1 to 8 carbon atoms is an alkyl group having 2 to 8 carbon atoms, _-CH2- contained in the alkyl group may be substituted with -O- or -CO-, m represents an integer greater than 1, [Y] ^m- represents an m-valent anion, and when m is an integer greater than 2, the multiple cations represented by formula (2a-C) may be the same or different;

[In formula (2a-C), ring ^T1b , ^R41b to ^R44b and ^R47b to ^R54b have the same meanings as described above]]

[In the formula (3a), ^R1 and ^R2 each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 10 carbon atoms which may have a substituent, or ^-R12 -Si( ^R13 ) ₃ ; or ^R1 and ^R2 are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded; ^R3 and ^R4 each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 10 carbon atoms which may have a substituent, or a group represented by ^-R12 -Si( ^R13 ) ₃ ; or ^R3 and R4 are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded; R ⁵ represents -OH, -SO ₃ ^- , -SO ₃ ^- Z ⁺ , -SO ₃ R ⁸ , -CO 2 ^- Z + , -CO ₂ R ⁸ , or -SO ₂ NR ⁹ R ¹⁰ , R ⁶ and R ⁷ each independently represent a hydrogen atom or an alkyl group _having 1 to 6 carbon atoms, p represents an integer of 0 to 5, and when p is an integer of 2 or more, a plurality of R ^{5 s} may be the same or different, ^q represents 0 or 1, X represents a halogen atom, Z ⁺ represents N ⁺ (R ¹¹ ) ₄ , Na ⁺ or K ⁺ , and four R ^{11 s} may be the same or different, R ⁸ represents a hydrogen atom, or a saturated alkyl group having 1 to 20 carbon atoms which may have a halogen atom, R R ⁹ and R ¹⁰ each independently represent a hydrogen atom or a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, or R ⁹ and R ¹⁰ are bonded to form a 3-membered to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded, R ¹¹ represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms or an aralkyl group having 7 to 10 carbon atoms, R ¹² represents an alkanediyl group having 1 to 10 carbon atoms, R ¹³ represents a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and the three R ^13s may be the same or different, R ¹ to R The saturated alkyl group having 1 to 20 carbon atoms of R 1 to ^{R 4} may have a substituent selected from the group consisting of an aromatic alkyl group having 6 to 10 carbon atoms, a halogen atom, a hydroxyl group, a formyl group, and a carboxyl group; the saturated alkyl group having 6 to 10 carbon atoms of R ¹ to R ⁴ may have a substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, a saturated alkyl group having 1 to 20 carbon atoms which may have a halogen atom, -OR ⁸ , -SO ₃ ^- , -SO ₃ ^- Z ⁺ , -SO ₃ R ⁸ , -CO ₂ ^- Z ⁺ , -CO ₂ R ⁸ , and -SO ₂ NR ⁹ R ¹⁰ ; in R ¹ to R In the case where the saturated alkyl group having 1 to 20 carbon atoms in ^{R 4} is a saturated alkyl group having 2 to 20 carbon atoms, -CH ₂ - contained in the saturated alkyl group may be substituted with -O-, -CO- or -NR ¹¹ -; the saturated alkyl group having 1 to 20 carbon atoms in R ⁹ and R ¹⁰ may have a substituent selected from the group consisting of a hydroxyl group, a formyl group and a halogen atom; in the case where the saturated alkyl group having 1 to 20 carbon atoms in R ⁹ and R ¹⁰ is a saturated alkyl group having 2 to 20 carbon atoms, -CH ₂ - contained in the saturated alkyl group may be substituted with -O-, -CO- or -NR ⁸ -; in R In the case where the alkanediyl group having 1 to 10 carbon atoms in ¹² is an alkanediyl group having 2 to 10 carbon atoms, -CH ₂ - contained in the alkanediyl group may be substituted with -O-, -CO- or -NR ⁸ -, and in the case where -SO ₃ ^- in ionic form exists in the compound represented by formula (3a), the number of the alkanediyl group is 1]

The resin (B) comprises a resin (B1) containing a constituent unit (b1-1) represented by the formula (1b),

[In formula (1b), R ^1B represents a hydrogen atom or a methyl group, R ^2B to R ^4B each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, n represents an integer of 1 to 10, and * represents a bonding position, wherein at least one of R ^2B to R ^4B is an alkoxy group having 1 to 6 carbon atoms], and the content of the coloring agent (A) is 35 wt % to 70 wt % relative to the total amount of the solid components of the composition.

[2] The composition described in [1], wherein the content of the colorant (A) is 40% to 70% by weight relative to the total amount of the solid components of the composition.

[3] The composition according to [1] or [2], wherein the ring T ^1a in the formula (1a) is a ring represented by the formula (1t),

[In the formula (1t), ^R45a and ^R46a each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or ^R45a and ^R46a are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded, ^R56a represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, ^L1a represents a sulfur atom, an oxygen atom, or ^-NR57a- , R ^57a represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, the saturated alkyl group having 1 to 20 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amine group, the aromatic alkyl group having 6 to 14 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and an alkyl group having 1 to 8 carbon atoms which may have a substituent, and the aralkyl group having 7 to 30 carbon atoms may have a substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and at least one of the group consisting of an alkyl group having 1 to 8 carbon atoms which may have a substituent, wherein the alkyl group having 1 to 8 carbon atoms which may have a substituent is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amino group, ^Rf represents a fluoroalkyl group having 1 to 12 carbon atoms, and * represents a bonding position with a carbon cation].

[4] The composition according to any one of [1] to [3], wherein in formula (1a), r is 2, and Mr ⁺ is a divalent metal ion.

[5] The composition according to [1] or [2], wherein in formula (1a), R ^41a and R ^43a are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^42a and R ^44a are each independently a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , R ^47a to R ^54a are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or -SO ₃ ^- , and ring T ^1a is a ring represented by formula (1t),

[In formula (1t), R ^45a is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^46a is a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , R ^56a is a phenyl group which may have at least one substituent selected from the group consisting of a halogen atom, an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , L ^1a is a sulfur atom, and * indicates a bonding position with a carbon cation]

r is 2, k represents the total number of -SO ₃ ^- contained in the anions represented by formula (1a-A) and is 2, the two anions represented by formula (1a-A) are the same, and Mr ⁺ is a barium ion.

[6] The composition according to any one of [1] to [5], wherein the ring T ^1b in the formula (2a) is a ring represented by the formula (2t),

[In the formula (2t), R ^45b and R ^46b each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^45b and R ^46b are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded, R ^56b represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, L ^1b represents a sulfur atom, an oxygen atom, or -NR ^57b -, R ^57b represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, the saturated alkyl group having 1 to 20 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amino group, the aromatic alkyl group having 6 to 14 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group and an alkyl group having 1 to 8 carbon atoms which may have a substituent, The aralkyl group having 7 to 30 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent; the alkyl group having 1 to 8 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, and an amine group; and * represents a bonding position with a carbon cation].

[7] The composition according to any one of [1] to [6], wherein [Y] ^m- in formula (2a) is a polyanion containing a tungsten atom.

[8] The composition according to any one of [1] to [6], wherein [Y] ^m- in formula (2a) is [PW ₁₂ O ₄₀ ] ^3- , [P ₂ W ₁₈ O ₆₂ ] ^6- , [SiW ₁₂ O 40 ] ^4- , [P 2 W 17 O 61 ] 10- , [P ₂ W ₁₅ O ₅₆ ] ^12- , [H ₂ P 2 W ₁₂ O ₄₈ ] 12- , [NaP ₅ W ₃₀ O ₁₁₀ ] 14- , [SiW ₉ O ₃₄ ] ^10- , [SiW 10 O 36 ] 8- , [SiW 11 O 39 ] 8- , [W 6 O 19 ] ^2- , [W 10 O 40 ] ^3- , [SiW ₁₇ O ₆₁ ] ^10- , [P 2 W 15 O 56 ] 12- , [H 2 P 2 W ₁₂ O ₄₈ ] 12- , [NaP ₅ W 30 O 110 ] _14- , [SiW ₉ O ₃₄ ] ^10- , [SiW ₁₀ O ₃₆ ] ^8- , [SiW ₁₁ O ₃₉ ] ^8- ₃₂ ] ^4- or [WO ₄ ] ^2- .

[9] The composition according to any one of [1] to [5], wherein in formula (2a), R ^41b , R ^43b and R ^47b to R ^54b are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^42b and R ^44b are each independently a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, and ring T ^1b is a ring represented by formula (2t); [Chemical 11]

[In formula (2t), R ^45b is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^46b is a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, R ^56b is a phenyl group which may have at least one substituent selected from the group consisting of a halogen atom and an alkyl group having 1 to 8 carbon atoms, L ^1b is a sulfur atom, and * represents a bonding position with a carbon cation]

m is 3, the three cations represented by formula (2a-C) are the same, and [Y] ^m- is [PW ₁₂ O ₄₀ ] ^3- .

[10] The composition according to any one of [1] to [9], wherein in formula (3a), ^R1 and ^R3 are each independently a hydrogen atom; an alkyl group having 1 to 8 carbon atoms which may have a carboxyl group; or a phenyl group which may have at least one substituent selected from the group consisting of an ^alkyl group having ¹ to 8 carbon atoms and _-SO2NR9R10 ; or ^-R12 -Si( ^R13 ) ₃ , ^R2 and ^R4 are each independently a alkyl group having 1 to 8 carbon atoms which may have a carboxyl group; or a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to ⁸ carbon atoms ^and _-SO2NR9R10 ; or ^-R12 -Si( ^R13 ) ₃ , ^R5 is _-SO3- ^{, R6} and ^R7 are both a hydrogen atom, and ^R9 and R10 are each a hydrogen atom. ^{R 10} is independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ¹² is an alkanediyl group having 1 to 6 carbon atoms, three R ¹³ are all alkoxy groups having 1 to 4 carbon atoms, p is 1, and q is 0.

[11] A composition as described in any one of [1] to [10], wherein the total content of the compound represented by formula (1a), the compound represented by formula (2a) and the compound represented by formula (3a) is 50% by weight to 100% by weight relative to the total amount of the colorant (A).

[12] A composition as described in any one of [1] to [5], wherein at least one selected from the group consisting of a compound represented by formula (1a), a compound represented by formula (2a) and a compound represented by formula (3a) is a compound represented by formula (1a), and the content of the compound represented by formula (1a) is 50% by weight to 100% by weight relative to the total amount of the coloring agent (A).

[13] The composition described in any one of [1], [2] and [6] to [9], wherein at least one selected from the group consisting of a compound represented by formula (1a), a compound represented by formula (2a) and a compound represented by formula (3a) is a compound represented by formula (2a), and the content of the compound represented by formula (2a) is 50% by weight to 100% by weight relative to the total amount of the coloring agent (A).

[14] A composition as described in any one of [1] to [13], wherein the resin (B1) is a copolymer comprising a constituent unit (b1-1), a constituent unit (b1-2) derived from a polymerizable unsaturated compound having an acidic group, and other constituent units (b1-3), and the amount of the constituent unit (b1-1) is 1 mol% to 50 mol% when the total of all the constituent units in the copolymer is taken as 100 mol%.

[15] The composition described in any one of [1] to [14], wherein the weight average molecular weight of the resin (B1) is 1,000 to 50,000.

[16] A composition as described in any one of [1] to [15], wherein the content of the resin (B1) is 10 to 100 parts by weight relative to 100 parts by weight of the colorant (A).

[17] A composition as described in any one of [1] to [15], wherein the content of the resin (B1) is 10 parts by weight to 60 parts by weight relative to 100 parts by weight of the colorant (A).

First, the composition of the present invention is prepared in advance, and then the colored curable composition is prepared using the composition of the present invention, thereby suppressing the viscosity increase of the colored curable composition.

The composition of the present invention comprises a colorant (A), a resin (B) and a solvent (E). The composition of the present invention is characterized in that: the colorant (A) comprises at least one selected from the group consisting of a compound represented by formula (1a), a compound represented by formula (2a) and a compound represented by formula (3a), the resin (B) comprises a resin (B1) containing a constituent unit (b1-1) represented by formula (1b), and the content of the colorant (A) is 35% to 70% by weight relative to the total amount of the solid components of the composition. Here, the so-called "total amount of the solid components of the composition" refers to the amount after deducting the content of the solvent (E) from the total amount of the composition. The total amount of solid components and the content of each component can be measured by known analytical methods such as liquid chromatography or gas chromatography.

In this specification, "the compound represented by formula (1a)" is sometimes referred to as "compound (1a)". In addition, compounds represented by other formulae, anions, and cations are sometimes referred to in the same abbreviated manner. In addition, as for each component of the composition of the present invention, each component of the coloring curable composition, and the raw materials used to produce each component, unless otherwise specified, only one type may be used, or two or more types may be used in combination.

The present invention is characterized in that a specific coloring agent (i.e., at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a)) is used. The inventors of the present invention have found that the viscosity of a coloring curable composition containing a specific coloring agent increases during storage. In order to solve this problem, the inventors of the present invention have repeatedly conducted diligent research and found that, first, a coloring agent (A) containing a specific coloring agent, a resin (B) containing a resin (B1) containing a constituent unit (b1-1) represented by formula (1b), and a solvent (E) are mixed to produce a composition, and the obtained composition, a polymerizable compound (C), a polymerization initiator (D), and other components as needed are mixed to produce a coloring curable composition, thereby suppressing the viscosity increase of the coloring curable composition. The present invention is described below in sequence.

<Definition>

First, the definition of bases used in this manual is explained. Unless otherwise specified, bases have the following definitions.

In this specification, examples of halogen atoms include fluorine atom, chlorine atom, bromine atom, and iodine atom.

In this specification, the saturated alkyl group may be any of a straight chain, a branched chain, and a ring. Examples of saturated alkyl groups having 1 to 20 carbon atoms include: methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, dodecyl, hexadecyl, eicosyl, isopropyl, isobutyl, isopentyl, neopentyl, 2-ethylhexyl, and other alkyl groups having 1 to 20 carbon atoms; cyclopropyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, tricyclodecyl, and other alicyclic saturated alkyl groups having 3 to 20 carbon atoms.

In this specification, an alkyl group may be a straight chain or a branched chain. As examples of an alkyl group having 1 to 10 carbon atoms, the groups having 1 to 10 carbon atoms in the examples of the alkyl group having 1 to 20 carbon atoms can be cited. The same applies to other examples of alkyl groups having different carbon atoms. In addition, the same applies to groups other than alkyl groups, which have different carbon atoms. For example, as examples of saturated alkyl groups having 2 to 20 carbon atoms, the groups having 2 to 20 carbon atoms in the examples of the saturated alkyl groups having 1 to 20 carbon atoms can be cited.

In this specification, the alkanediyl group may be either a straight chain or a branched chain. Examples of alkanediyl groups having 1 to 10 carbon atoms include methylene, ethyl, trimethylene, tetramethylene, pentamethylene, hexamethylene, isopropyl, isobutyl, 2-methyltrimethylene, isopentyl, isohexyl, isooctyl, and 2-ethylhexyl.

In this specification, the fluoroalkyl group may be any of a linear chain and a branched chain. Examples of the fluoroalkyl group having 1 to 12 carbon atoms include monofluoromethyl, difluoromethyl, perfluoromethyl, monofluoroethyl, difluoroethyl, trifluoroethyl, tetrafluoroethyl, perfluoroethyl, monofluoropropyl, difluoropropyl, trifluoropropyl, tetrafluoropropyl, pentafluoropropyl, hexafluoropropyl, perfluoropropyl, monofluorobutyl, difluorobutyl, trifluorobutyl, tetrafluorobutyl, pentafluorobutyl, hexafluorobutyl, heptafluorobutyl, octafluorobutyl, and perfluorobutyl.

In this specification, the alkoxy group may be either a straight chain or a branched chain. Examples of the alkoxy group having 1 to 6 carbon atoms include: methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexyloxy, isopropoxy, isobutoxy, isopentyloxy, and neopentyloxy.

In this specification, examples of aromatic hydrocarbon groups having 6 to 14 carbon atoms include phenyl, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, and 9-anthryl.

In this specification, examples of aralkyl groups having 7 to 30 carbon atoms include benzyl, phenethyl, naphthylmethyl, and 3-phenylpropyl.

In this specification, the nitrogen-containing heterocyclic ring may be any of a monocyclic ring and a condensed ring. Examples of nitrogen-containing heterocyclic rings having 3 to 10 members include: pyrrolidine ring, morpholine ring, piperidine ring, and piperazine ring.

In this specification, the aromatic hydrocarbon ring may be any of a monocyclic ring and a condensed ring. The aromatic hydrocarbon ring having 6 to 14 carbon atoms may be any of a benzene ring, a naphthalene ring, a phenanthrene ring, and an anthracene ring.

In this specification, the aromatic heterocyclic ring may be any of a monocyclic ring and a condensed ring. Examples of 5- to 10-membered aromatic heterocyclic rings include: pyrrole ring, oxazole ring, pyrazole ring, imidazole ring, thiazole ring, furan ring, thiophene ring, pyridine ring, pyrimidine ring, oxazine ring, pyrazine ring, indole ring, benzimidazole ring, benzothiazole ring, quinoline ring, benzofuran ring, etc.

<Colorant (A)>

The coloring agent (A) comprises at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a).

First, the groups in the following formula (1a) are explained one by one.

In formula (1a), R ^41a and R ^42a each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^41a and R ^42a are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded.

The saturated alkyl group having 1 to 20 carbon atoms in formula (1a) may have a substituent which is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a methyl group and an amino group.

When the saturated alkyl group having 1 to 20 carbon atoms in formula (1a) is a saturated alkyl group having 2 to 20 carbon atoms, _-CH2- contained in the saturated alkyl group may be substituted with -O- or -CO-. Here, the _-CH2- does not include _-CH2- bonded to a nitrogen atom and _-CH2- in a methyl group at the end of the saturated alkyl group. In addition, _-CH2 - _CH2- contained in the saturated alkyl group may not be substituted with -OO- or -CO-CO-.

The substituent that the aromatic alkyl group having 6 to 14 carbon atoms in formula (1a) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and an alkyl group having 1 to 8 carbon atoms that may have a substituent.

The aralkyl group having 7 to 30 carbon atoms in formula (1a) may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

^Rf in the formula (1a) represents a fluoroalkyl group having 1 to 12 carbon atoms.

The alkyl group having 1 to 8 carbon atoms in formula (1a) may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a methyl group and an amino group.

When the alkyl group having 1 to 8 carbon atoms in formula (1a) is an alkyl group having 2 to 8 carbon atoms, _-CH2- contained in the alkyl group may be substituted with -O- or -CO-. Here, the _-CH2- does not include _-CH2- in the methyl group at the end of the alkyl group. In addition, the _-CH2 - _CH2- contained in the alkyl group may not be substituted with -OO- or -CO-CO-.

R ^41a is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms.

R ^42a is preferably a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , more preferably a phenyl group which may have -SO ₃ ^- and may have one or two alkyl groups having 1 to ⁸ carbon atoms as substituents, and further preferably a phenyl group which may have -SO ₃ - and may have one or two alkyl groups having 1 to 4 carbon atoms as substituents.

R ^43a and R ^44a in formula (1a) each independently represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^43a and R ^44a are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded.

R ^43a is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms.

R ^44a is preferably a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , more preferably a phenyl group which may have -SO ₃ ^- and may have one or two alkyl groups having 1 to ⁸ carbon atoms as substituents, and further preferably a phenyl group which may have -SO ₃ - and may have one or two alkyl groups having 1 to 4 carbon atoms as substituents.

R ^47a to R ^54a in formula (1a) each independently represents a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , or an alkyl group having 1 to 8 carbon atoms which may have a substituent. R ^47a to R ^54a each independently represent preferably a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or -SO ₃ ^- , and more preferably a hydrogen atom or -SO ₃ ^- .

Ring ^T1a in formula (1a) represents an aromatic hydrocarbon ring having 6 to 14 carbon atoms which may have a substituent or an aromatic heterocyclic ring having 5 to 10 members which may have a substituent.

The substituent that the aromatic hydrocarbon ring having 6 to 14 carbon atoms in formula (1a) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and an alkyl group having 1 to 8 carbon atoms that may have a substituent.

The 5- to 10-membered aromatic heterocyclic ring in formula (1a) may have a substituent which is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

The ring T ^1a is preferably a ring represented by the formula (1t).

R ^45a and R ^46a in formula (1t) each independently represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^45a and R ^46a are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded.

The saturated alkyl group having 1 to 20 carbon atoms in formula (1t) may have a substituent which is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a methyl group, and an amino group.

The substituent that the aromatic alkyl group having 6 to 14 carbon atoms in formula (1t) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and an alkyl group having 1 to 8 carbon atoms that may have a substituent.

The aralkyl group having 7 to 30 carbon atoms in formula (1t) may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

The alkyl group having 1 to 8 carbon atoms in formula (1t) may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a methyl group and an amino group.

R ^45a is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms.

R ^46a is preferably a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , more preferably a phenyl group which may have -SO ₃ ^- and may have one or two alkyl groups having 1 to ⁸ carbon atoms as substituents, and further preferably a phenyl group which may have -SO ₃ - and may have one or two alkyl groups having 1 to 4 carbon atoms as substituents.

R ^56a in formula (1t) represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent.

R ^56a is preferably a phenyl group which may have at least one substituent selected from the group consisting of a halogen atom, an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , more preferably a phenyl group which may have -SO ₃ ^- and has one or two halogen atoms as substituents, and further preferably a phenyl group which may have -SO ₃ ^- and has one or two fluorine atoms as substituents.

In formula (1t), L ^1a represents a sulfur atom, an oxygen atom or -NR ^57a -. R ^57a represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms. ^{L 1a} is preferably a sulfur atom.

The * in formula (1t) indicates the bonding position with the carbon cation. In other words, -* in formula (1t) indicates bonding. -* in other formulas also indicates bonding in the same way.

In formula (1a), r represents an integer greater than 1. Preferably, r is 2. When r is an integer greater than 2, the multiple anions represented by formula (1a-A) may be the same or different.

[In formula (1a-A), ring ^T1a , ^R41a to ^R44a and ^R47a to ^R54a have the same meanings as described above]

The multiple anions (1a-A) are preferably the same.

In the formula (1a), k represents the total number of -SO ₃ ^- and -SO ₂ -N ^- -SO ₂ -R ^f possessed by the anion (1a-A), and is an integer greater than or equal to 2. Preferably, k is 2.

Mr ⁺ in formula (1a) represents a hydrogen ion, an r-valent metal ion or N ⁺ ( ^R55a ) ₄ , and four ^R55a may be the same or different. ^R55a represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms or an aralkyl group having 7 to 10 carbon atoms. When k-1 in formula (1a) is an integer greater than 2, multiple Mr ⁺ may be the same or different.

Mr ⁺ is preferably an r-valent metal ion. Examples of r-valent metal ions include alkaline metal ions such as lithium ion, sodium ion, potassium ion; alkaline earth metal ions such as palladium ion, magnesium ion, calcium ion, strontium ion, barium ion; transition metal ions such as titanium ion, zirconium ion, chromium ion, manganese ion, iron ion, cobalt ion, nickel ion, copper ion; and typical metal ions such as zinc ion, cadmium ion, aluminum ion, indium ion, tin ion, lead ion, and bismuth ion.

Mr ⁺ is more preferably a divalent metal ion, further preferably an alkali earth metal ion, and particularly preferably a barium ion (Ba2 ⁺ ).

The compound (1a) is preferably a compound (hereinafter sometimes described as "compound (1a')"), wherein R ^41a and R ^43a are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^42a and R ^44a are each independently a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , R ^47a to R ^54a are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or -SO ₃ ^- , and ring T ^1a is a ring represented by formula (1t) [in formula (1t), R ^45a is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^46a is a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , R ^56a is a phenyl group which may have at least one substituent selected from the group consisting of a halogen atom, an alkyl group having 1 to 8 carbon atoms, and -SO ₃ ^- , L ^1a is a sulfur atom, and * represents a bonding position with a carbon cation], r is 2, k represents the total number of -SO ₃ ^- contained in the anions (1a-A) and is 2, the two anions (1a-A) are the same, and Mr ⁺ is Ba ²⁺ .

In compound (1a'), R ^41a and R ^43a are more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and more preferably an alkyl group having 1 to 4 carbon atoms; R ^42a and R ^44a are each independently more preferably a phenyl group having one or two alkyl groups having 1 to 8 carbon atoms as substituents and optionally having -SO ₃ ^- , and more preferably a phenyl group having one or two alkyl groups having 1 to 4 carbon atoms as substituents and optionally having -SO ₃ ^- ; R ^47a to R ^54a are more preferably a hydrogen atom or -SO ₃ ^- ; R ^45a is more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and more preferably an alkyl group having 1 to 4 carbon atoms; R ^46a is more preferably a phenyl group having one or two alkyl groups having 1 to 8 carbon atoms as substituents and optionally having -SO ₃ -. ^-phenyl , further preferably phenyl having one or two alkyl groups of 1 to 4 carbon atoms as substituents and optionally having -SO ₃ ^- ; and R ^56a is more preferably phenyl having one or two halogen atoms as substituents and optionally having -SO ₃ ^- , further preferably phenyl having one or two fluorine atoms as substituents and optionally having -SO ₃ ^- .

Among the compounds (1a), the compounds represented by the following formula (1a-1) are particularly preferred. In the following formula (1a-1), two "-SO ₃ ^- " means that each anion has -SO ₃ ^- as a substituent, and the total number of -SO ₃ ^- in each anion is 2 (i.e., the total number of -SO ₃ ^- in the two anions is 4).

[Chemistry 15]

Compound (1a) can be produced according to a known method (for example, the method described in "Journal of Organic Chemistry" ((1994), vol.59, #11, pp.3232-3236), and the method described in Japanese Patent Publication No. 2018-127596).

Next, the groups in the following formula (2a) are explained one by one.

R ^41b and R ^42b in formula (2a) each independently represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^41b and R ^42b are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded.

The saturated alkyl group having 1 to 20 carbon atoms in formula (2a) may have a substituent which is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a methyl group and an amino group.

When the saturated alkyl group having 1 to 20 carbon atoms in formula (2a) is a saturated alkyl group having 2 to 20 carbon atoms, _-CH2- contained in the saturated alkyl group may be substituted with -O- or -CO-. Here, the _-CH2- does not include _-CH2- bonded to a nitrogen atom and _-CH2- in a methyl group at the end of the saturated alkyl group. In addition, _-CH2 - _CH2- contained in the saturated alkyl group may not be substituted with -OO- or -CO-CO-.

The substituent that the aromatic hydrocarbon group having 6 to 14 carbon atoms in formula (2a) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms that may have a substituent.

The substituent that the aralkyl group having 7 to 30 carbon atoms in formula (2a) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms that may have a substituent.

The alkyl group having 1 to 8 carbon atoms in formula (2a) may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a methyl group and an amino group.

When the alkyl group having 1 to 8 carbon atoms in formula (2a) is an alkyl group having 2 to 8 carbon atoms, _-CH2- contained in the alkyl group may be substituted with -O- or -CO-. Here, the _-CH2- does not include _-CH2- in the methyl group at the end of the alkyl group. In addition, the _-CH2 - _CH2- contained in the alkyl group may not be substituted with -OO- or -CO-CO-.

R ^41b is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms.

R ^42b is preferably a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, more preferably a phenyl group which may have an alkyl group having 1 to 4 carbon atoms, and further preferably a phenyl group.

R ^43b and R ^44b in formula (2a) each independently represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^43b and R ^44b are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded.

R ^43b is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms.

R ^44b is preferably a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, more preferably a phenyl group which may have an alkyl group having 1 to 4 carbon atoms, and further preferably a phenyl group.

R ^47b to R ^54b in formula (2a) each independently represents a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, or an alkyl group having 1 to 8 carbon atoms which may have a substituent.

R ^47b to R ^54b are each independently preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably a hydrogen atom.

Ring T ^1b in formula (2a) represents an aromatic hydrocarbon ring having 6 to 14 carbon atoms which may have a substituent or an aromatic heterocyclic ring having 5 to 10 members which may have a substituent.

The substituent that the aromatic hydrocarbon ring having 6 to 14 carbon atoms in formula (2a) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms that may have a substituent.

The 5- to 10-membered aromatic heterocyclic ring in formula (2a) may have a substituent selected from at least one of the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

The ring T ^1b is preferably a ring represented by the formula (2t).

R ^45b and R ^46b in formula (2t) each independently represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^45b and R ^46b are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded.

The saturated alkyl group having 1 to 20 carbon atoms in formula (2t) may have a substituent which is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a methyl group and an amino group.

The substituent that the aromatic hydrocarbon group having 6 to 14 carbon atoms in formula (2t) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a methyl group, and an alkyl group having 1 to 8 carbon atoms that may have a substituent.

The substituent that the aralkyl group having 7 to 30 carbon atoms in formula (2t) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms that may have a substituent.

The alkyl group having 1 to 8 carbon atoms in formula (2t) may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a methyl group and an amino group.

R ^45b is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms.

R ^46b is preferably a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, more preferably a phenyl group having one or two alkyl groups having 1 to 8 carbon atoms as substituents, and further preferably a phenyl group having one or two alkyl groups having 1 to 4 carbon atoms as substituents.

R ^56b in formula (2t) represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent.

R ^56b is preferably a phenyl group which may have at least one substituent selected from the group consisting of a halogen atom and an alkyl group having 1 to 8 carbon atoms, more preferably a phenyl group having one or two halogen atoms as substituents, and further preferably a phenyl group having one or two fluorine atoms as substituents.

In formula (2t), L ^1b represents a sulfur atom, an oxygen atom or -NR ^57b -. R ^57b represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms. L ^1b is preferably a sulfur atom.

The * in formula (2t) represents the bonding position with the carbon cation.

In formula (2a), m represents an integer greater than 1. m is preferably an integer of 1 to 20, more preferably an integer of 2 to 14, further preferably an integer of 2 to 8, and particularly preferably 3. When m is an integer greater than 2, the multiple cations represented by formula (2a-C) may be the same or different.

[In formula (2a-C), ring ^T1b , ^R41b to ^R44b and ^R47b to ^R54b have the same meanings as described above]

The multiple cations (2a-C) are preferably the same.

[Y] ^m- in formula (2a) represents an m-valent anion. [Y] ^m- is preferably a polyanion containing a tungsten atom, and more preferably [PW ₁₂ O ₄₀ ] ^3- , [P ₂ W ₁₈ O ₆₂ ] ^6- , [SiW ₁₂ O ₄₀ ] ^4- , [P ₂ W ₁₇ O ₆₁ ] ^10- , [P ₂ W ₁₅ O ₅₆ ] ^12- , [H ₂ P ₂ W ₁₂ O ₄₈ ] ^12- , [NaP ₅ W ₃₀ O ₁₁₀ ] ^14- , [SiW ₉ O ₃₄ ] ^10- , [SiW ₁₀ O ₃₆ ] ^8- , [SiW ₁₁ O ₃₉ ] ^8- , [W ₆ O ₁₉ ] ^2- , [W ₁₀ O ₃₂ ] ^4- or [WO ₄ ] ^2- , and more preferably [PW ₁₂ O ₄₀ ] ^3- .

The compound (2a) is preferably a compound (hereinafter sometimes described as "compound (2a')"), wherein R ^41b , R ^43b and R ^47b to R ^54b are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^42b and R ^44b are each independently a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, and ring T ^1b is a ring represented by formula (2t) [in formula (2t), R ^45b is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^46b is a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, R ^56b is a phenyl group which may have at least one substituent selected from the group consisting of a halogen atom and an alkyl group having 1 to 8 carbon atoms, and L ^1b is a sulfur atom, and * indicates a bonding position with a carbon cation], m is 3, the three cations (2a-C) are the same, and [Y] ^m- is [PW ₁₂ O ₄₀ ] ^3- .

In compound (2a'), R ^41b and R ^43b are each independently preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and further preferably an alkyl group having 1 to 4 carbon atoms; R ^42b and R ^44b are each independently more preferably a phenyl group which may have an alkyl group having 1 to 4 carbon atoms, and further preferably a phenyl group; R ^47b to R ^54b are each independently more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and further preferably a hydrogen atom; R ^45b is more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and further preferably an alkyl group having 1 to 4 carbon atoms; R ^46b is more preferably a phenyl group having one or two alkyl groups having 1 to 8 carbon atoms as substituents, and further preferably a phenyl group having one or two alkyl groups having 1 to 4 carbon atoms as substituents; and R ^56b is more preferably a phenyl group having one or two halogen atoms as substituents, and further preferably a phenyl group having one or two fluorine atoms as substituents.

Among the compounds (2a), the compounds represented by the following formula (2a-1) are particularly preferred.

Compound (2a) can be produced according to a known method (for example, the method described in Japanese Patent Publication No. 2015-28121, Japanese Patent Publication No. 2015-38201, etc.).

Next, the groups in the following formula (3a) are explained one by one.

In formula (3a), ^R1 and ^R2 each independently represent a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 10 carbon atoms which may have a substituent, or ^-R12 -Si( ^R13 ) ₃ , or ^R1 and ^R2 are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded.

In formula (3a), R ³ and R ⁴ each independently represent a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 10 carbon atoms which may have a substituent, or a group represented by -R ¹² -Si(R ¹³ ) ₃ , or R ³ and R ⁴ are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded.

The substituent that the saturated alkyl group having 1 to 20 carbon atoms represented by R ¹ to R ⁴ may have is at least one selected from the group consisting of an aromatic alkyl group having 6 to 10 carbon atoms, a halogen atom, a hydroxyl group, a formyl group, and a carboxyl group.

The substituent that the aromatic hydrocarbon group having 6 to 10 carbon atoms represented by R ¹ to R ⁴ may have is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a halogen atom, -OR ⁸ , -SO ₃ ^- , -SO ₃ ^- Z ⁺ , -SO ₃ R ⁸ , -CO ₂ ^- Z ⁺ , -CO ₂ R ⁸ and -SO ₂ NR ⁹ R ¹⁰ .

When -SO ₃ ^- exists in the compound (3a) in an ionic form, the number thereof is one.

When the saturated alkyl group having 1 to 20 carbon atoms of R ¹ to R ⁴ is a saturated alkyl group having 2 to 20 carbon atoms, -CH ₂ - contained in the saturated alkyl group may be substituted with -O-, -CO-, or -NR ¹¹ -. Here, the -CH ₂ - does not include -CH ₂ - bonded to a nitrogen atom and -CH ₂ - in a methyl group at the end of the saturated alkyl group. In addition, -CH ₂ -CH ₂ - contained in the saturated alkyl group may not be substituted with -OO-, -CO-CO-, or -NR ¹¹ -NR ¹¹ -.

^R1 and ^R3 are each independently preferably a hydrogen atom; an alkyl group ^having 1 to 8 carbon atoms which may have a carboxyl group; a phenyl group which may have at least one substituent selected from the group consisting of an ^alkyl group having 1 to 8 carbon atoms and _-SO2NR9R10 ; or ^-R12 -Si( ^R13 ) ₃ , more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms which may have a carboxyl group.

R ² and R ⁴ are each independently preferably an alkyl group having 1 to 8 carbon atoms which may have a carboxyl group; a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and -SO ₂ NR ⁹ R ¹⁰ ; or -R ¹² -Si(R ¹³ ) ₃ , more preferably an alkyl group having 1 to 4 carbon atoms; a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms and -SO ₂ NR ⁹ R ¹⁰ ; or -R ¹² -Si(R ¹³ ) ₃ .

In formula (3a), p represents an integer of 0 to 5. When p is an integer greater than 2, a plurality of R ⁵ may be the same or different. p is preferably 1.

In formula (3a), R ⁵ represents -OH, -SO ₃ ^- , -SO ₃ ^- Z ⁺ , -SO ₃ R ⁸ , -CO ₂ ^- Z ⁺ , -CO ₂ R ⁸ , or -SO ₂ NR ⁹ R ¹⁰ . Z ⁺ represents N ⁺ (R ¹¹ ) ₄ , Na ⁺ or K ⁺ . The four R ^11s may be the same or different. R ⁵ is preferably -SO ₃ ^- .

In formula (3a), ^R6 and ^R7 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms. Preferably, ^R6 and ^R7 are both hydrogen atoms.

In formula (3a), ^R8 represents a hydrogen atom or a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a halogen atom.

In formula (3a), ^R9 and ^R10 each independently represent a hydrogen atom or a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, or ^R9 and ^R10 are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded.

The substituent that the saturated alkyl group having 1 to 20 carbon atoms represented by R ⁹ and R ¹⁰ may have is at least one selected from the group consisting of a hydroxyl group, a formyl group and a halogen atom.

When the saturated alkyl group having 1 to 20 carbon atoms in R ⁹ and R ¹⁰ is a saturated alkyl group having 2 to 20 carbon atoms, -CH ₂ - contained in the saturated alkyl group may be substituted with -O-, -CO-, or -NR ⁸ -. Here, the -CH ₂ - does not include -CH ₂ - bonded to a nitrogen atom and -CH ₂ - in a methyl group at the end of the saturated alkyl group. In addition, -CH ₂ -CH ₂ - contained in the saturated alkyl group may not be substituted with -OO-, -CO-CO-, or -NR ⁸ -NR ⁸ -.

^R9 and ^R10 are each independently preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms.

In formula (3a), R ¹¹ represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms, or an aralkyl group having 7 to 10 carbon atoms.

In formula (3a), R ¹² represents an alkanediyl group having 1 to 10 carbon atoms. When the alkanediyl group having 1 to 10 carbon atoms in R ¹² is an alkanediyl group having 2 to 10 carbon atoms, -CH ₂ - contained in the alkanediyl group may be substituted with -O-, -CO-, or -NR ⁸ -. Here, the -CH ₂ - does not include -CH ₂ - bonded to a nitrogen atom and -CH ₂ - bonded to a silicon atom. In addition, -CH ₂ -CH ₂ - contained in the alkanediyl group may not be substituted with -OO-, -CO-CO-, or -NR ⁸ -NR ⁸ -.

R ¹² is preferably an alkanediyl group having 1 to 6 carbon atoms.

In formula (3a), R ¹³ represents a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. Furthermore, the three R ¹³ groups may be the same or different. The three R ¹³ groups are preferably all alkoxy groups having 1 to 4 carbon atoms.

In formula (3a), X represents a halogen atom.

In formula (3a), q represents 0 or 1. Here, q being 0 means that (X ^- ) _q does not exist. q is preferably 0.

Preferred as the compound (3a) is a compound (hereinafter sometimes described as "compound (3a')"), wherein ^R1 and ^R3 are each independently a hydrogen atom; an alkyl group having 1 to 8 carbon atoms which may have a carboxyl group; and a phenyl group which may have at least one substituent selected from the group consisting of ^an alkyl group having 1 to ⁸ carbon atoms and _-SO2NR9R10 ; or ^-R12 -Si( ^R13 ) ₃ , ^R2 and R4 are each independently a alkyl group having 1 to 8 carbon atoms which may have a carboxyl group; and a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and _-SO2NR9R10 ; or ^-R12 -Si( ^R13 ) ³ , ^R5 is _-SO3- ^{, R6} and ^R7 are both a hydrogen atom, and ^R9 and ^R10 are each -R12-Si( ^R13 ) ₃ . ^{R 10} is independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ¹² is an alkanediyl group having 1 to 6 carbon atoms, three R ¹³ are all alkoxy groups having 1 to 4 carbon atoms, p is 1, and q is 0.

In compound (3a'), ^R1 and ^R3 are each independently preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms which may have a carboxyl group, and ^R2 and ^R4 are more preferably an alkyl group having 1 to 4 carbon atoms; a phenyl group which may have at least one substituent selected from the group consisting of an ^alkyl group having 1 to 4 carbon atoms ^and _-SO2NR9R10 ; or ^-R12 -Si( ^R13 ) ₃ .

Compound (3a) is particularly preferably at least one selected from the group consisting of a compound represented by the following formula (3a-1), a compound represented by the following formula (3a-2), a compound represented by the following formula (3a-3), a compound represented by the following formula (3a-4), a compound represented by the following formula (3a-5), a compound represented by the following formula (3a-6), and a compound represented by the following formula (3a-7).

In the formula (3a-2) and the formula (3a-3), R ¹⁴ represents -SO ₂ -NH(CH ₂ )-CH(CH ₂ CH ₃ )-CH ₂ CH ₂ CH ₂ CH ₃ .

Compound (3a) can be produced according to a known method (for example, the method described in Japanese Patent Publication No. 2010-32999).

In one embodiment of the present invention, at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a) is preferably at least one selected from the group consisting of compound (1a) and compound (2a), more preferably compound (1a) or compound (2a), and further preferably compound (1a).

In another embodiment of the present invention, at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a) is preferably at least one selected from the group consisting of compound (1a'), compound (2a') and compound (3a'), more preferably at least one selected from the group consisting of compound (1a') and compound (2a'), further preferably compound (1a') or compound (2a'), and particularly preferably compound (1a').

In another aspect of the present invention, at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a) is preferably at least one selected from the group consisting of compound (1a-1), compound (2a-1), compound (3a-1), compound (3a-2), compound (3a-3), compound (3a-4), compound (3a-5), compound (3a-6) and compound (3a-7), more preferably at least one selected from the group consisting of compound (1a-1) and compound (2a-1), further preferably compound (1a-1) or compound (2a-1), and particularly preferably compound (1a-1).

The coloring agent (A) may contain other coloring agents different from the compound (1a), the compound (2a) and the compound (3a).

As other coloring agents, oxanthracene dyes can be used. Examples of oxyanthracene dyes include C.I. acid red 51 (hereinafter, C.I. acid red is omitted and only the number is recorded; the same applies to other dyes), 52, 87, 92, 94, 289, 388; C.I. acid violet 9, 30, 102; C.I. basic red 1 (rhodamine 6G), 2, 3, 4, 8; C.I. basic red 10, 11; C.I. basic violet 10 (rose red B), 11; C.I. solvent red 218; C.I. mordant red 27; C.I. reactive red 36 (rose Bengal) bengal)B); acid rose red (sulforhodamine)G.

As other coloring agents, coumarin dyes can be used. Examples of coumarin dyes include: C.I. Acid Yellow 227, 250; C.I. Disperse Yellow 82, 184; C.I. Solvent Orange 112; C.I. Solvent Yellow 160, 172; and coumarin dyes described in Japanese Patent No. 1299948.

Examples of dyes other than those mentioned above include dyes listed in the Color Index (published by The Society of Dyers and Colourists) and dyes listed in the Dyeing Notes (Shikisensha). In addition, examples of dyes include azo dyes, cyanine dyes, phthalocyanine dyes, anthraquinone dyes, naphthoquinone dyes, quinoneimine dyes, methine dyes, azoformine dyes, squarylium dyes, acridine dyes, styryl dyes, quinoline dyes, and nitro dyes.

As specific examples of dyes, the following dyes can be listed.

(1) C.I. solvent dye

C.I. Solvent Yellow 4, 14, 15, 23, 24, 25, 38, 62, 63, 68, 79, 81, 82, 83, 89, 94, 98, 99, 162; C.I. Solvent Orange 2, 7, 11, 15, 26, 41, 54, 56, 99; C.I. Solvent Red 24, 49, 90, 91, 111, 118, 119, 122, 124, 125, 127, 130, 132, 143, 145, 146, 150, 151, 155, 160, 168, 169, 172, 175, 181, 207, 222, 227, 230, 245, 247; C.I. Solvent Violet C.I. violet) 11, 13, 14, 26, 31, 36, 37, 38, 45, 47, 48, 51, 59, 60; C.I. solvent blue (solvent blue) 14, 18, 35, 36, 45, 58, 59, 59: 1, 63, 68, 69, 78, 79, 83, 94, 97, 98, 100, 101, 102, 104, 105, 111, 112, 122, 128, 132, 136, 139; C.I. solvent green (solvent green) 1, 3, 5, 28, 29, 32, 33, etc.

(2) C.I. Acid dyes

C.I. Acid Yellow 1, 3, 7, 9, 11, 17, 23, 25, 29, 34, 36, 38, 40, 42, 54, 65, 72, 73, 76, 79, 98, 99, 111, 112, 113, 114, 116, 119, 123, 128, 134, 135, 138, 139, 140, 144, 150, 155, 157, 160 、161、163、168、169、172、177、178、179、184、190、193、196、197、199、202、203、204、205、207、212、214、220、221、228、230、232、235、238、240、242、243、251；C.I. Acid Orange Orange) 6, 7, 8, 10, 12, 26, 50, 51, 52, 56, 62, 63, 64, 74, 75, 94, 95, 107, 108, 149, 162, 169, 173; C.I. Acid Red 73, 80, 91, 97, 138, 151, 211, 274; C.I. Acid Green (acid green) 3, 5, 9, 25, 27, 28, 41; C.I. Acid Violet 34, 120; C.I. Acid Blue (acid blue) 25, 27, 40, 45, 78, 80, 112, etc.

(3) C.I. Alkaline dyes

C.I. Basic green 1, etc.

(4) C.I. reactive dyes

C.I. reactive yellow 2, 76, 116; C.I. reactive orange 16, etc.

(5) C.I. Direct dyes

C.I. Direct yellow: 2, 4, 28, 33, 34, 35, 38, 39, 43, 44, 47, 50, 54, 58, 68, 69, 70, 71, 86, 93, 94, 95, 98, 102, 108, 109, 129, 132, 136, 138, 141; C.I. Direct orange: 26, 34, 39, 41, 46, 50, 52, 56, 57, 61, 64, 65, 68, 70, 96, 97, 106, 107; C.I. Direct blue: 40, etc.

(6) C.I. Disperse Dyes

C.I. Disperse Yellow 51, 54, 76; C.I. Disperse Violet 26, 27; C.I. Disperse Blue 1, 14, 56, 60, etc.

(7) C.I. mordant dyes

C.I. mordant yellow: 5, 8, 10, 16, 20, 26, 30, 31, 33, 42, 43, 45, 56, 61, 62, 65; C.I. mordant orange: 3, 4, 5, 8, 12, 13, 14, 20, 21, 23, 24, 28, 29, 32, 34, 35, 36, 37, 42, 43, 47, 48, etc.

(8) C.I. reduced dyes

C.I. Vat green 1, etc.

In addition, as other coloring agents, for example, pigments listed in the Color Index (published by The Society of Dyers and Colourists) can be used.

As specific examples of pigments, the following pigments can be cited: C.I. pigment yellow (pigment yellow) 1, 3, 12, 13, 14, 15, 16, 17, 20, 24, 31, 53, 83, 86, 93, 94, 109, 110, 117, 125, 128, 129, 137, 138, 139, 147, 148, 150, 153, 154, 166, 173, 194, 214 and other yellow pigments; C.I. pigment orange (pigment orange) 13, 31, 36, 38, 40, 42, 43, 51, 55, 59, 61, 64, 65, 71, 73 and other orange pigments; C.I. pigment red (pigment red) C.I. pigment blue (pigment blue) 15, 15:3, 15:4, 15:6, 60 and other blue pigments; C.I. pigment violet (pigment violet) 1, 19, 23, 29, 32, 36, 38 and other purple pigments; C.I. pigment green (pigment green) 7, 36, 58 and other green pigments; C.I. pigment brown (pigment brown) 23, 25 and other brown pigments; C.I. pigment black (pigment black) 1, 7 and other black pigments, etc.

Relative to the total amount of solid components of the composition of the present invention, the content of the coloring agent (A) is 35% to 70% by weight, preferably 40% to 70% by weight, more preferably 40% to 65% by weight, and even more preferably 45% to 60% by weight.

Relative to the total amount of the coloring agent (A), the total content of compound (1a), compound (2a) and compound (3a) is preferably 50% to 100% by weight, more preferably 55% to 100% by weight, further preferably 60% to 100% by weight, particularly preferably 65% to 100% by weight, and most preferably 80% to 100% by weight.

In the embodiment where at least one of the compounds selected from the group consisting of compound (1a), compound (2a) and compound (3a) is compound (1a), the content of compound (1a) relative to the total amount of colorant (A) is preferably 50% by weight to 100% by weight, more preferably 55% by weight to 100% by weight, further preferably 60% by weight to 100% by weight, particularly preferably 65% by weight to 100% by weight, and most preferably 80% by weight to 100% by weight.

In the embodiment where at least one of the compounds selected from the group consisting of compound (1a), compound (2a) and compound (3a) is compound (2a), the content of compound (2a) relative to the total amount of colorant (A) is preferably 50% by weight to 100% by weight, more preferably 55% by weight to 100% by weight, further preferably 60% by weight to 100% by weight, particularly preferably 65% by weight to 100% by weight, and most preferably 80% by weight to 100% by weight.

<Resin (B)>

The present resin (B) includes a resin (B1) containing a constituent unit (b1-1) represented by formula (1b) (hereinafter, sometimes described as "constituent unit (b1-1)").

[In formula (1b), R ^1B represents a hydrogen atom or a methyl group, R ^2B to R ^4B each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, n represents an integer of 1 to 10, and * represents a bonding position, wherein at least one of R ^2B to R ^4B is an alkoxy group having 1 to 6 carbon atoms]

In the resin (B1), the constituent unit (b1-1) may include only one type or two or more types.

R ^2B to R ^4B are each independently preferably methoxy, ethoxy or propoxy, more preferably methoxy or ethoxy.

n is preferably an integer between 1 and 6, and more preferably an integer between 1 and 3.

The resin (B1) is preferably a copolymer comprising a constituent unit (b1-1), a constituent unit (b1-2) derived from a polymerizable unsaturated compound having an acidic group (hereinafter, sometimes described as "constituent unit (b1-2)"), and other constituent units (b1-3) (hereinafter, sometimes described as "constituent unit (b1-3)"). Here, the so-called other constituent unit (b1-3) refers to a constituent unit different from the constituent unit (b1-1) and the constituent unit (b1-2). In the resin (B1) as a copolymer, the constituent unit (b1-1), the constituent unit (b1-2), and the constituent unit (b1-3) may each contain only one kind or may contain two or more kinds.

Examples of the acidic group contained in the constituent unit (b1-2) include a carboxyl group, a phosphoric acid group (-OP(=O)(OH) ₂ ), and a sulfonic acid group (-S(=O) ₂ OH). Among these, a carboxyl group is preferred.

From the viewpoint of the solvent resistance of the color filter obtained from the colored curable composition, the amount of the constituent unit (b1-1) when the total of all constituent units in the copolymer is set to 100 mol% is preferably 1 mol% to 50 mol%, more preferably 5 mol% to 40 mol%, and even more preferably 10 mol% to 30 mol%.

From the perspective of the developing properties of the colored curable composition, the amount of the constituent unit (b1-2) when the total of all constituent units in the copolymer is set to 100 mol% is preferably 10 mol% to 50 mol%, more preferably 15 mol% to 45 mol%, and even more preferably 20 mol% to 40 mol%.

From the viewpoint of the developing property of the color curable composition and the solvent resistance of the color filter obtained from the color curable composition, the amount of the constituent unit (b1-3) when the total of all constituent units in the copolymer is set to 100 mol% is preferably 1 mol% to 89 mol%, more preferably 15 mol% to 80 mol%, and even more preferably 30 mol% to 70 mol%.

From the perspective of the developing properties of the coloring curable composition, the weight average molecular weight (Mw) of the resin (B1) is 1,000 to 50,000, preferably 2,000 to 40,000, and more preferably 3,000 to 30,000. The weight average molecular weight (Mw) is a value calculated by gel permeation chromatography (GPC) and converted to polystyrene.

From the viewpoint of thermal decomposition resistance, thermal yellowing resistance, and solvent resistance of color filters obtained from the colored curable composition, the silyl equivalent of resin (B1) is preferably 400 to 4,000, and more preferably 450 to 3,000. If the silyl equivalent of resin (B1) is 400 or more, it is effective for further improving the thermal decomposition resistance and thermal yellowing resistance of the colored pattern or colored coating. The silyl equivalent of resin (B1) is a value calculated according to the following formula: Silyl equivalent = weight average molecular weight of resin (B1) / average number of silyl groups per molecule.

The silyl equivalent can be calculated from the input amount of the monomer used in the production of the resin (B1).

When the resin (B1) is a copolymer containing the constituent unit (b1-2), the acid value of the resin (B1) is preferably 20 mgKOH/g to 300 mgKOH/g, and more preferably 30 mgKOH/g to 200 mgKOH/g from the viewpoint of the developing property of the coloring curable composition. The acid value of the resin (B1) is a value measured in accordance with Japanese Industrial Standards (JIS) K6901 5.3 using a mixed indicator of bromothymol blue and phenol red, and is a value calculated as the amount (mg) of potassium hydroxide required to neutralize 1 g of the resin (B1), and can be obtained, for example, by titration using an aqueous potassium hydroxide solution.

From the perspective of suppressing the viscosity increase of the colored curable composition, the content of the resin (B1) is preferably 10 to 100 parts by weight, more preferably 10 to 60 parts by weight, further preferably 10 to 55 parts by weight, particularly preferably 25 to 55 parts by weight, and most preferably 30 to 55 parts by weight, relative to 100 parts by weight of the colorant (A).

The resin (B1) can be produced by copolymerizing only the compound (m1-1) represented by the following formula (2b) (hereinafter, sometimes described as "compound (m1-1)") or a monomer mixture containing the compound (m1-1) and other compounds in the presence of a solvent according to a known free radical polymerization method.

[The meanings of the symbols in formula (2b) are as described above]

The copolymer resin (B1) can be produced, for example, by dissolving the compound (m1-1) and other compounds as needed in a solvent to prepare a solution, adding a polymerization initiator to the solution, and reacting at 50°C to 130°C for 1 hour to 20 hours.

The resin (B1) which is a copolymer comprising the constituent unit (b1-1), the constituent unit (b1-2) and the constituent unit (b1-3) can be produced by copolymerizing a monomer mixture comprising the compound (m1-1), a polymerizable unsaturated compound (m1-2) having an acidic group (hereinafter, sometimes described as "the compound (m1-2)") and other polymerizable unsaturated compounds (m1-3) (hereinafter, sometimes described as "the compound (m1-3)") in the presence of a solvent according to a known free radical polymerization method. Here, the other polymerizable unsaturated compound (m1-3) refers to a polymerizable unsaturated compound different from the compound (m1-1) and the compound (m1-2). In addition, the constituent unit (b1-1) is derived from the compound (m1-1), the constituent unit (b1-2) is derived from the compound (m1-2), and the constituent unit (b1-3) is derived from the compound (m1-3).

The copolymer resin (B1) can be produced, for example, by dissolving compound (m1-1), compound (m1-2) and compound (m1-3) in a solvent, preparing a solution, adding a polymerization initiator to the solution, and reacting at 50°C to 130°C for 1 hour to 20 hours.

Examples of compound (m1-1) include 3-(meth)acryloxypropylmethyldimethoxysilane, 3-(meth)acryloxypropylethyldimethoxysilane, 3-(meth)acryloxypropylmethyldiethoxysilane, 3-(meth)acryloxypropylethyldiethoxysilane, 3-(meth)acryloxypropyltrimethoxysilane, and 3-(meth)acryloxypropyltriethoxysilane. Among these, 3-(meth)acryloxypropyltrimethoxysilane and 3-(meth)acryloxypropyltriethoxysilane are preferred in terms of availability and reactivity. Here, "3-(meth)acryloxypropylmethyldimethoxysilane" refers to at least one selected from 3-acryloxypropylmethyldimethoxysilane and 3-methacryloxypropylmethyldimethoxysilane. Other identical descriptions have the same meaning.

Examples of the acidic group contained in compound (m1-2) include a carboxyl group, a phosphate group (—OP(═O)(OH) ₂ ), and a sulfone group (—S(═O) ₂ OH). Among these, a carboxyl group is preferred.

As compound (m1-2), for example, (meth)acrylic acid, crotonic acid, cinnamic acid, vinyl sulfonic acid, 2-(meth)acryloyloxyethyl succinic acid, 2-acryloyloxyethyl phthalic acid, 2-(meth)acryloyloxyethyl hexahydrophthalic acid, 2-(meth)acryloyloxyethyl acid phosphate, etc. Among them, (meth)acrylic acid is preferred from the viewpoint of ease of acquisition and reactivity.

As the compound (m1-3), for example, the following compounds can be cited: butadiene; methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, isopropyl (meth)acrylate, butyl (meth)acrylate, sec-butyl (meth)acrylate, isobutyl (meth)acrylate, tert-butyl (meth)acrylate, pentyl (meth)acrylate, neopentyl (meth)acrylate, benzyl (meth)acrylate, isopentyl (meth)acrylate, hexyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, lauryl (meth)acrylate, dodecyl (meth)acrylate, cyclopentyl (meth)acrylate, cyclohexyl (meth)acrylate, methylcyclohexyl (meth)acrylate, Ester, ethyl cyclohexyl (meth)acrylate, 1,4-cyclohexanedimethanol mono(meth)acrylate, rosin (meth)acrylate, norbornyl (meth)acrylate, 5-methyl norbornyl (meth)acrylate, 5-ethyl norbornyl (meth)acrylate, allyl (meth)acrylate, tetrahydrofurfuryl (meth)acrylate, 1,1,1-trifluoroethyl (meth)acrylate, perfluoroethyl (meth)acrylate, perfluoro-propyl (meth)acrylate, perfluoro-isopropyl (meth)acrylate, triphenylmethyl (meth)acrylate, cumyl (meth)acrylate, 3-(N,N-dimethylamino)propyl (meth)acrylate, glycerol mono(meth)acrylate, butanetriol mono(meth)acrylate (Meth)acrylate, pentatriol mono(meth)acrylate, dicyclopentenyl(meth)acrylate, dicyclopentyl(meth)acrylate, isobornyl(meth)acrylate, adamantyl(meth)acrylate, naphthyl(meth)acrylate, anthracene(meth)acrylate, 2-(2-vinyloxyethoxy)ethyl(meth)acrylate, glycidyl(meth)acrylate, 3,4-epoxycyclohexylmethyl(meth)acrylate, (3-ethyloxycyclobutane-3-yl)methyl(meth)acrylate, 2-isocyanatoethyl(meth)acrylate, 2-isocyanatopropyl(meth)acrylate, 3-isocyanatopropyl(meth)acrylate, 2-isocyanato-1-(2-vinyloxyethoxy)ethyl(meth)acrylate, glycidyl(meth)acrylate, 3,4-epoxycyclohexylmethyl(meth)acrylate, (3-ethyloxycyclobutane-3-yl)methyl(meth)acrylate, 2-isocyanatoethyl(meth)acrylate, 2-isocyanatopropyl(meth)acrylate, 3-isocyanatopropyl(meth)acrylate, 2-isocyanato-1-(2-vinyloxyethoxy)ethyl(meth)acrylate, -methyl ethyl (meth)acrylate, 2-isocyanato-1,1-dimethylethyl (meth)acrylate, 4-isocyanatocyclohexyl (meth)acrylate, a (meth)acrylate having a blocked isocyanate group obtained by blocking the isocyanate group of the (meth)acrylate having an isocyanate group (e.g., 2-isocyanatoethyl (meth)acrylate) using a blocking agent, N,N-dimethylaminoethyl (meth)acrylate, N,N-diethylaminoethyl (meth)acrylate, N-tert-butylaminoethyl (meth)acrylate, tetramethylpiperidyl (meth)acrylate, hexamethylpiperidyl (meth)acrylate; (meth)acrylic acid amide, N,N-dimethylamide (meth)acrylate, N,N-diethyl acrylate, N,N-dipropyl (meth)acrylate, N,N-diisopropyl (meth)acrylate, anthracenyl (meth)acrylate, N-isopropyl (meth)acrylamide, morpholine (meth)acrylate, diacetone (meth)acrylamide; norbornene (bicyclo[2.2.1]hept-2-ene), 5-methylbicyclo[2.2.1]hept-2-ene, 5-ethylbicyclo[2.2.1]hept-2-ene, tetracyclo[4.4.0.1 ^2,5 .1 ^7,10 ]dodec-3-ene, 8-methyltetracyclo[4.4.0.1 ^2,5 .1 ^7,10 ] dodec-3-ene, 8-ethyltetracyclo[4.4.0.1 ^2,5 .1 ^7,10 ] dodec-3-ene, dicyclopentadiene, tricyclo[5.2.1.0 ^2,6 ] dec-8-ene, tricyclo[5.2.1.0 ^2,6 ] dec-3-ene, tricyclo[4.4.0.1 ^2,5 ] undec-3-ene, tricyclo[6.2.1.0 ^1,8 ] undec-9-ene, tricyclo[6.2.1.0 ^1,8 ] undec-4-ene, tetracyclo[4.4.0.1 ^2,5 .1 ^7,10 .0 ^1,6 ] dodec-3-ene, 8-methyltetracyclo[4.4.0.1 ^2,5 .1 ^7,10 .0 ^1,6 ] dodec-3-ene, 8-ethylenetetracyclo[4.4.0.1 ^2,5 .1 ^7,12 ] dodec-3-ene, 8-ethylenetetracyclo[4.4.0.1 ^2,5 .1 ^7,10 .0 ^1,6 ] dodec-3-ene, pentacyclo[6.5.1.1 ^3,6 .0 ^2,7 .0 ^9,13 ] pentadeca-4-ene, pentacyclo[7.4.0.1 ^2,5 .1 ^9,12 .0 ^8,13 ]pentadeca-3-ene, 5-norbornene-2,3-dicarboxylic anhydride, (meth)acrylic aniline, (meth)acrylonitrile, acrolein, vinyl chloride, vinylidene chloride, vinyl fluoride, vinylidene fluoride, vinylpyridine, vinyl acetate, vinyltoluene; styrene and its derivatives; diethyl citric acid, diethyl maleate, diethyl fumarate, diethyl itaconate; maleic anhydride, itaconic anhydride, citric anhydride.

From the viewpoint of availability and reactivity, preferred compounds (m1-3) are methyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, benzyl (meth)acrylate, dicyclopentyl (meth)acrylate, glycidyl (meth)acrylate, (3-ethyloxycyclobutane-3-yl)methyl (meth)acrylate, N,N-diethylaminoethyl (meth)acrylate, N,N-dimethylamide (meth)acrylate, morpholine (meth)acrylate, styrene, vinyltoluene and norbornene, and more preferred compounds are methyl (meth)acrylate, benzyl (meth)acrylate, dicyclopentyl (meth)acrylate, glycidyl (meth)acrylate, (3-ethyloxycyclobutane-3-yl)methyl (meth)acrylate, styrene and vinyltoluene.

From the viewpoint of heat decomposition resistance and heat yellowing resistance, the compound (m1-3) is preferably an alkyl (meth)acrylate, and more preferably methyl (meth)acrylate, benzyl (meth)acrylate, or dicyclopentanyl (meth)acrylate.

From the viewpoint of the solvent resistance of the color filter obtained from the colored curable composition, the compound (m1-3) is preferably a polymerizable compound having a functional group that reacts with an acidic group (e.g., glycidyl, cyclobutylene oxide, isocyanate, blocked isocyanate), and more preferably glycidyl (meth)acrylate or (3-ethylcyclobutylene oxide)methyl methacrylate.

As the blocking agent used in the blocking of the isocyanate group, for example, the following blocking agents can be listed: ε-caprolactam, δ-valerolactamide, γ-butyrolactam, β-propiolactamide and other lactam-based blocking agents; methanol, ethanol, propanol, butanol, ethylene glycol, methyl solvent, butyl solvent, methyl carbitol, benzyl alcohol, phenyl solvent, furfuryl alcohol, cyclohexanol and other alcohol-based blocking agents; phenol, cresol, xylenol, Ethylphenol, o-isopropylphenol, butylphenol such as tert-butylphenol, tert-octylphenol, nonylphenol, dinonylphenol, styrenated phenol, oxybenzoate, daphneol, p-naphthol, p-nitrophenol, p-chlorophenol and other phenolic end-capping agents; dimethyl malonate, diethyl malonate, methyl acetylacetate, ethyl acetylacetate, acetylacetone and other active methylene end-capping agents; butanethiol (butyl mercaptan) Mercaptan), thiophenol, tertiary-dodecyl mercaptan and other thiol-based capping agents; diphenylamine, phenylnaphthylamine, aniline, carbazole and other amine-based capping agents; acetanilide, acetanisidide, acetamide, benzamide and other acid amide-based capping agents; succinimide, maleic imide and other acid imide-based capping agents Agent; imidazole-based end-capping agents such as imidazole, 2-methylimidazole, and 2-ethylimidazole; urea-based end-capping agents such as urea, thiourea, and ethyleneurea; aminocarbamate-based end-capping agents such as N-phenylaminophenyl ester and 2-oxazolidinone; imine-based end-capping agents such as ethyleneimine and polyethyleneimine; oxime-based end-capping agents such as formaldehyde oxime, acetaldehyde oxime, acetone oxime, methyl ethyl ketone oxime, methyl isobutyl ketone oxime, and cyclohexanone oxime; bisulfite-based end-capping agents such as sodium bisulfite and potassium bisulfite.

In order to control the molecular weight (Mw) and polydispersity (Mw/Mn) of the resin (B1) within a preferred range and to suppress gelation during polymerization, the solvent used in the polymerization is preferably a solvent containing a hydroxyl group having 3 to 10 carbon atoms. As solvents containing hydroxyl groups having 3 to 10 carbon atoms, for example, monoalcohols such as propyl alcohol, butyl alcohol, amyl alcohol, hexyl alcohol, octyl alcohol, nonyl alcohol, decyl alcohol, and benzyl alcohol; (poly)alkylene glycol monoalkyl ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, and tripropylene glycol monomethyl ether.

The solvent used in the polymerization may also contain solvents other than the solvent containing a hydroxyl group having 3 to 10 carbon atoms. Examples of the solvent include (poly)alkylene glycol monoalkyl ether acetates such as ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, propylene glycol monomethyl ether acetate, and propylene glycol monoethyl ether acetate; ethers such as diethylene glycol dimethyl ether, diethylene glycol methyl ethyl ether, diethylene glycol diethyl ether, and tetrahydrofuran; ketones such as methyl ethyl ketone, cyclohexanone, 2-heptanone, and 3-heptanone; methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl ethoxylate, ethyl hydroxylate, 3-methyl- Esters such as 3-methoxybutyl acetate, 3-methyl-3-methoxybutyl propionate, ethyl acetate, butyl acetate, propyl acetate, isopropyl acetate, isobutyl acetate, amyl acetate, isoamyl acetate, butyl propionate, ethyl butyrate, propyl butyrate, isopropyl butyrate, butyl butyrate, methyl pyruvate, ethyl pyruvate, propyl pyruvate, methyl acetylacetate, ethyl acetylacetate, ethyl 2-oxobutyrate; aromatic hydrocarbons such as toluene and xylene; carboxylic acid amides such as N-methylpyrrolidone, N,N-dimethylformamide, and N,N-dimethylacetamide, etc. Among these, (poly)alkylene glycol monoalkyl ether acetates are preferred from the viewpoint of reactivity.

From the viewpoint of controlling the weight molecular weight and polydispersity (Mw/Mn) of the resin (B1), the content of the solvent containing a hydroxyl group having 3 to 10 carbon atoms relative to the total amount of the solvent used in the polymerization is preferably 10% to 100% by weight, more preferably 20% to 100% by weight.

The amount of the solvent used in the polymerization is not particularly limited, but is preferably 30 to 1,000 parts by weight, and more preferably 50 to 800 parts by weight, relative to 100 parts by weight of the total amount of compound (m1-1), compound (m1-2) and compound (m1-3).

The polymerization initiator that can be used in the polymerization is not particularly limited, and examples thereof include: 2,2'-azobis(isobutyronitrile), 2,2'-azobis(2,4-dimethylvaleronitrile), 2,2'-azobis(isobutyric acid) dimethyl ester, benzoyl peroxide, tert-butyl peroxy-2-ethylhexanoate, etc. The amount of the polymerization initiator used is not particularly limited, and is preferably 0.5 to 20 parts by weight, and more preferably 1.0 to 10 parts by weight, relative to 100 parts by weight of the total amount of compound (m1-1), compound (m1-2), and compound (m1-3).

Resin (B) may also contain a resin (B2) different from resin (B1). Resin (B2) is preferably an alkali-soluble resin, and is preferably a polymer containing the following constituent units, wherein the constituent units are derived from at least one monomer selected from the group consisting of unsaturated carboxylic acids and unsaturated carboxylic anhydrides (hereinafter, sometimes described as "monomer (m2-1)"). In the polymer, the constituent units may include only one type, or may include two or more types.

Resin (B2) is preferably a copolymer comprising constituent units derived from monomer (m2-1) and constituent units derived from a monomer having a cyclic ether structure with 2 to 4 carbon atoms and an ethylenic unsaturated bond (hereinafter, sometimes described as "monomer (m2-2)"). The copolymer may also contain other constituent units. As other constituent units, for example, constituent units derived from a monomer different from monomer (m2-1) and monomer (m2-2) (hereinafter, sometimes described as "monomer (m2-3)"), constituent units having an ethylenic unsaturated bond, etc. can be listed. In the copolymer, the constituent units may include only one kind or two or more kinds.

Examples of the monomer (m2-1) include the following monomers: unsaturated monocarboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, and o-vinylbenzoic acid, m-vinylbenzoic acid, and p-vinylbenzoic acid; unsaturated dicarboxylic acids such as maleic acid, fumaric acid, liraconic acid, mesaconic acid, itaconic acid, 3-vinylphthalic acid, 4-vinylphthalic acid, 3,4,5,6-tetrahydrophthalic acid, 1,2,3,6-tetrahydrophthalic acid, dimethyltetrahydrophthalic acid, and 1,4-cyclohexene dicarboxylic acid; methyl-5-norbornene-2,3-dicarboxylic acid, 5-carboxybicyclo[2.2.1]hept-2-ene, 5,6- Bicyclic unsaturated compounds containing carboxyl groups such as dicarboxybicyclo[2.2.1]hept-2-ene, 5-carboxymethylbicyclo[2.2.1]hept-2-ene and 5-carboxyethylbicyclo[2.2.1]hept-2-ene; carboxylic anhydrides such as anhydrides of the unsaturated dicarboxylic acids mentioned above except fumaric acid and mesaconic acid; unsaturated mono[(meth)acryloxyalkyl] esters of polycarboxylic acids having a valence of more than two such as mono[2-(meth)acryloxyethyl] succinate and mono[2-(meth)acryloxyethyl] phthalate; unsaturated acrylic esters containing hydroxyl and carboxyl groups in the same molecule such as α-(hydroxymethyl)acrylic acid.

As the monomer (m2-1), acrylic acid, methacrylic acid and maleic anhydride are preferred in terms of reactivity or solubility of the obtained resin in alkaline aqueous solution.

The monomer (m2-2) refers to a polymerizable compound having a cyclic ether structure with 2 to 4 carbon atoms and an ethylenic unsaturated bond. The monomer (m2-2) is preferably a monomer having a cyclic ether structure with 2 to 4 carbon atoms and a (meth)acryloyloxy group. Examples of the cyclic ether structure with 2 to 4 carbon atoms include: an oxycyclopropane ring, an oxycyclobutane ring, and a tetrahydrofuran ring.

Examples of the monomer (m2-2) include a monomer having an oxocyclopropyl group and an ethylenic unsaturated bond (hereinafter, sometimes described as "monomer (m2-2-1)"), a monomer having an oxocyclobutyl group and an ethylenic unsaturated bond (hereinafter, sometimes described as "monomer (m2-2-2)"), and a monomer having a tetrahydrofuranyl group and an ethylenic unsaturated bond (hereinafter, sometimes described as "monomer (m2-2-3)"), etc.

Examples of monomers (m2-2-1) include monomers having a structure formed by epoxidation of aliphatic unsaturated hydrocarbons in a straight chain or branched chain (hereinafter, sometimes described as "monomer (m2-2-1a)") and monomers having a structure formed by epoxidation of alicyclic unsaturated hydrocarbons (hereinafter, sometimes described as "monomer (m2-2-1b)").

As the monomer (m2-2-1a), a monomer having a glycidyl group and an ethylenic unsaturated bond is preferred. Examples of the monomer (m2-2-1a) include: (meth) acrylate glycidyl, (meth) acrylate β-methyl glycidyl, (meth) acrylate β-ethyl glycidyl, glycidyl vinyl ether, vinyl benzyl glycidyl ether, α-methyl vinyl benzyl glycidyl ether, 2,3-bis(glycidyloxymethyl)styrene, 2,4-bis(glycidyloxymethyl)styrene, 2,5 -Bis(glycidyloxymethyl)styrene, 2,6-bis(glycidyloxymethyl)styrene, 2,3,4-tri(glycidyloxymethyl)styrene, 2,3,5-tri(glycidyloxymethyl)styrene, 2,3,6-tri(glycidyloxymethyl)styrene, 3,4,5-tri(glycidyloxymethyl)styrene and 2,4,6-tri(glycidyloxymethyl)styrene, etc.

Examples of monomers (m2-2-1b) include vinylcyclohexene oxide, 1,2-epoxy-4-vinylcyclohexane (e.g., Celloxide (registered trademark) 2000; manufactured by Daicel), 3,4-epoxycyclohexylmethyl (meth)acrylate (e.g., Cyclomer (registered trademark) A400; manufactured by Daicel), 3,4-epoxycyclohexylmethyl (meth)acrylate (e.g., Cyclomer (registered trademark) M100; manufactured by Daicel), compounds represented by formula (BI) and compounds represented by formula (BII), etc.

[In formula (BI) and formula (BII), ^Ra and ^Rb each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms which may have a hydroxyl group, ^Xa and ^Xb each independently represent a single bond, * ^-Rc- , *-Rc ^- O-, *-Rc ^- S- or * ^-Rc- NH-, ^Rc represents an alkanediyl group having 1 to 6 carbon atoms, and * represents a bonding position with O]

As the compound represented by formula (BI), for example, compounds represented by any one of formula (I-1) to formula (I-15) can be listed. Among them, compounds represented by any one of formula (I-1), formula (I-3), formula (I-5), formula (I-7), formula (I-9) and formula (I-11) to formula (I-15) are preferred, and compounds represented by any one of formula (I-1), formula (I-7), formula (I-9) and formula (I-15) are more preferred.

[Chemistry 24]

As the compound represented by formula (BII), for example, there can be listed compounds represented by any one of formula (II-1) to formula (II-15). Among them, preferably, it is a compound represented by any one of formula (II-1), formula (II-3), formula (II-5), formula (II-7), formula (II-9) and formula (II-11) to formula (II-15), and more preferably, it is a compound represented by any one of formula (II-1), formula (II-7), formula (II-9) and formula (II-15).

[Chemistry 25]

In addition, the compound represented by formula (BI) and the compound represented by formula (BII) can be used separately or in combination. When used in combination, the molar ratio of the compound represented by formula (BI) and the compound represented by formula (BII) (compound represented by formula (BI) : compound represented by formula (BII)) is preferably 5:95 to 95:5, more preferably 10:90 to 90:10, and even more preferably 20:80 to 80:20.

Examples of the monomer (m2-3) include the following monomers: methyl (meth)acrylate, ethyl (meth)acrylate, n-butyl (meth)acrylate, sec-butyl (meth)acrylate, tert-butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, dodecyl (meth)acrylate, lauryl (meth)acrylate, stearyl (meth)acrylate, cyclopentyl (meth)acrylate, tricyclo[5.2.1.0 ^2,6 ]decane-8-yl (meth)acrylate, tricyclo[5.2.1.0 ^2,6 ]decane-9-yl (meth)acrylate, tricyclo[5.2.1.0 ^2,6 ]decen-8-yl (meth)acrylate, tricyclo[5.2.1.0 ^2,6 ] (meth)acrylates such as decen-9-yl ester, dicyclopentanyloxyethyl (meth)acrylate, isobornyl (meth)acrylate, adamantyl (meth)acrylate, allyl (meth)acrylate, propargyl (meth)acrylate, phenyl (meth)acrylate, naphthyl (meth)acrylate, and benzyl (meth)acrylate; (meth)acrylates containing a hydroxyl group such as 2-hydroxyethyl (meth)acrylate and 2-hydroxypropyl (meth)acrylate; diethyl maleate, fumaric acid Diethyl ester and diethyl itaconate; bicyclo[2.2.1]hept-2-ene, 5-methylbicyclo[2.2.1]hept-2-ene, 5-ethylbicyclo[2.2.1]hept-2-ene, 5-hydroxybicyclo[2.2.1]hept-2-ene, 5-hydroxymethylbicyclo[2.2.1]hept-2-ene, 5-(2'-hydroxyethyl)bicyclo[2.2.1]hept-2-ene, 5-methoxybicyclo[2.2.1]hept-2-ene, 5-ethoxybicyclo[2.2.1] Hept-2-ene, 5,6-dihydroxybicyclo[2.2.1]hept-2-ene, 5,6-di(hydroxymethyl)bicyclo[2.2.1]hept-2-ene, 5,6-di(2'-hydroxyethyl)bicyclo[2.2.1]hept-2-ene, 5,6-dimethoxybicyclo[2.2.1]hept-2-ene, 5,6-diethoxybicyclo[2.2.1]hept-2-ene, 5-hydroxy-5-methylbicyclo[2.2.1]hept-2-ene, 5-hydroxy-5-ethylbicyclo[2.2.1 ]hept-2-ene, 5-hydroxymethyl-5-methylbicyclo[2.2.1]hept-2-ene, 5-tert-butoxycarbonylbicyclo[2.2.1]hept-2-ene, 5-cyclohexyloxycarbonylbicyclo[2.2.1]hept-2-ene, 5-phenoxycarbonylbicyclo[2.2.1]hept-2-ene, 5,6-bis(tert-butoxycarbonyl)bicyclo[2.2.1]hept-2-ene and 5,6-bis(cyclohexyloxycarbonyl)bicyclo[2.2.1]hept-2-ene; N-phenylmaleimide, N-cyclohexylmaleimide, N-benzylmaleimide, N-succinimidyl-3-maleimidobenzoate, N-succinimidyl-4-maleimidobutyrate, N-succinimidyl-6-maleimidohexanoate, N-succinimidyl-3-maleimidopropionate and N-(9-acridinyl)maleimide and other dicarbonyl acyl groups Amine derivatives; aromatic compounds containing vinyl groups such as styrene, α-methylstyrene, vinyltoluene and p-methoxystyrene; nitriles containing vinyl groups such as (meth)acrylonitrile; halides such as vinyl chloride and vinylidene chloride; amides containing vinyl groups such as (meth)acrylamide; esters such as vinyl acetate; dienes such as 1,3-butadiene, isoprene and 2,3-dimethyl-1,3-butadiene.

In terms of reactivity and heat resistance, the monomer (m2-3) is preferably styrene, vinyltoluene, tricyclo[5.2.1.0 ^2,6 ]decane-8-yl (meth)acrylate, tricyclo[5.2.1.0 ^2,6 ]decane-9-yl (meth)acrylate, tricyclo[5.2.1.0 ^2,6 ]decen-8-yl (meth)acrylate, tricyclo[5.2.1.0 ^2,6 ]decen-9-yl (meth)acrylate, N-phenylmaleimide, N-cyclohexylmaleimide, N-benzylmaleimide, bicyclo[2.2.1]hept-2-ene and benzyl (meth)acrylate.

The constituent unit having an ethylenic unsaturated bond is preferably a constituent unit having a (meth)acryl group. The resin (B2) having such a constituent unit can be obtained by adding a monomer having a group that can react with the group possessed by the constituent unit and an ethylenic unsaturated bond to a polymer comprising a constituent unit derived from a monomer (m2-1) and a constituent unit derived from a monomer (m2-2).

As constituent units having ethylenic unsaturated bonds, for example, there can be listed: constituent units obtained by adding glycidyl (meth)acrylate to a (meth)acrylate unit; constituent units obtained by adding 2-hydroxyethyl (meth)acrylate to a maleic anhydride unit; constituent units obtained by adding (meth)acrylic acid to glycidyl (meth)acrylate units; constituent units obtained by adding carboxylic anhydride to constituent units having a hydroxyl group, etc.

A polymer containing constituent units derived from a monomer (m2-1) can be produced, for example, by polymerizing monomers constituting constituent units of the polymer in a solvent in the presence of a polymerization initiator. The polymerization initiator and the solvent are not particularly limited, and those commonly used in this field can be used. Examples of polymerization initiators include azo compounds (2,2'-azobisisobutyronitrile, 2,2'-azobis(2,4-dimethylvaleronitrile), etc.) or organic peroxides (benzoyl peroxide, etc.). As a solvent, there is no particular limitation if it is a solvent that dissolves each monomer, and examples thereof include the solvent (E) described later. Furthermore, the obtained polymer can be used directly as a solution after the reaction, or as a concentrated or diluted solution, or can be taken out in a solid (powder) form by re-precipitation or other methods.

In the production of a polymer containing a constituent unit derived from the monomer (m2-1), a carboxylic anhydride having an ethylenic unsaturated bond may also be used as a monomer. Examples of the carboxylic anhydride include maleic anhydride, conic anhydride, itaconic anhydride, 3-vinylphthalic anhydride, 4-vinylphthalic anhydride, 3,4,5,6-tetrahydrophthalic anhydride, 1,2,3,6-tetrahydrophthalic anhydride, dimethyltetrahydrophthalic anhydride, and 5,6- dicarboxybicyclo[2.2.1]hept-2-ene anhydride.

Examples of the resin (B2) include 3,4-epoxycyclohexylmethyl (meth)acrylate/(meth)acrylic acid copolymers, 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decyl (meth)acrylate/(meth)acrylic acid copolymers, glycidyl (meth)acrylate/benzyl (meth)acrylate/(meth)acrylic acid copolymers, glycidyl (meth)acrylate/styrene/(meth)acrylic acid copolymers, 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decyl (meth)acrylate/(meth)acrylic acid/N-cyclohexylmaleimide copolymers, 3,4-epoxytricyclo[5.2.1.0 ^2,6 ] decyl (meth)acrylate/(meth)acrylic acid/N-cyclohexylmaleimide/2-hydroxyethyl (meth)acrylate copolymer, 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decyl (meth)acrylate/(meth)acrylic acid/vinyltoluene copolymer, 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decyl (meth)acrylate/(meth)acrylic acid/2-ethylhexyl (meth)acrylate copolymer, 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decyl (meth)acrylate/tricyclo[5.2.1.0 ^2,6 ]decenyl ester/(meth)acrylic acid/N-cyclohexylmaleimide copolymer, 3-methyl-3-(meth)acryloyloxymethyloxycyclobutane/(meth)acrylic acid/styrene copolymer, benzyl (meth)acrylate/(meth)acrylic acid copolymer, styrene/(meth)acrylic acid copolymer, and resins described in Japanese Patent Laid-Open No. 9-106071, Japanese Patent Laid-Open No. 2004-29518, and Japanese Patent Laid-Open No. 2004-361455.

When a combination of two or more resins (B2) is used, the combination preferably comprises at least one selected from the group consisting of 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decyl(meth)acrylate/(meth)acrylic acid copolymer, 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decyl(meth)acrylate/(meth)acrylic acid/N-cyclohexylmaleimide/2-hydroxyethyl(meth)acrylate copolymer, 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decyl(meth)acrylate/(meth)acrylic acid/vinyltoluene copolymer, and 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decyl(meth)acrylate/(meth)acrylic acid/2-ethylhexyl(meth)acrylate copolymer.

The weight average molecular weight (Mw) of the resin (B2) is preferably 3,000 to 100,000, more preferably 5,000 to 50,000, and further preferably 5,000 to 30,000. The polydispersity (Mw/Mn) of the resin (B2) (i.e., the ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn)) is preferably 1.1 to 6, more preferably 1.2 to 4. Here, the weight average molecular weight (Mw) and the number average molecular weight (Mn) of the resin (B2) are values calculated by gel permeation chromatography (GPC) and converted to polystyrene.

The acid value (solid content conversion value) of the resin (B2) is preferably 10 mgKOH/g to 300 mgKOH/g, more preferably 20 mgKOH/g to 250 mgKOH/g, further preferably 20 mgKOH/g to 200 mgKOH/g, further preferably 20 mgKOH/g to 170 mgKOH/g, further preferably 30 mgKOH/g to 170 mgKOH/g, particularly preferably 50 mgKOH/g to 150 mgKOH/g, further particularly preferably 60 mgKOH/g to 140 mgKOH/g, and most preferably 60 mgKOH/g to 135 mgKOH/g. The acid value of the resin (B2) is a value calculated as the amount (mg) of potassium hydroxide required to neutralize 1 g of the resin (B2), and can be obtained, for example, by titration using an aqueous potassium hydroxide solution.

When the resin (B2) is used, from the viewpoint of the storage stability of the coloring curable composition and the heat resistance of the color filter obtained from the coloring curable composition, its content is preferably 10 to 40 parts by weight, more preferably 10 to 30 parts by weight, relative to 100 parts by weight of the coloring agent (A).

<Solvent (E)>

The solvent (E) is not particularly limited, and any solvent known in the field of coloring curable compositions can be used. Examples of the solvent (E) include ester solvents (solvents containing -COO- and not containing -O- in the molecule), ether solvents (solvents containing -O- and not containing -COO- in the molecule), ether ester solvents (solvents containing -COO- and -O- in the molecule), ketone solvents (solvents containing -CO- and not containing -COO- in the molecule), alcohol solvents (solvents containing OH and not containing -O-, -CO-, and -COO- in the molecule), aromatic hydrocarbon solvents, amide solvents, dimethyl sulfoxide, and the like. Furthermore, the concept of "-O-" does not include the "-O-" in "-COO-", and the concept of "-CO-" does not include the "-CO-" in "-COO-".

Examples of ester solvents include methyl lactate, ethyl lactate, butyl lactate, methyl 2-hydroxyisobutyrate, ethyl acetate, n-butyl acetate, isobutyl acetate, amyl formate, isoamyl acetate, butyl propionate, isopropyl butyrate, ethyl butyrate, butyl butyrate, methyl pyruvate, ethyl pyruvate, propyl pyruvate, methyl acetylacetate, ethyl acetylacetate, cyclohexanol acetate, and γ-butyrolactone.

Examples of ether solvents include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, 3-methoxybutanol, 3-methoxy-3-methylbutanol, tetrahydrofuran, tetrahydropyran, 1,4-dioxane, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol methyl ethyl ether, diethylene glycol dipropyl ether, diethylene glycol dibutyl ether, anisole, phenethyl ether, and methyl anisole.

Examples of ether ester solvents include methyl methoxyacetate, ethyl methoxyacetate, butyl methoxyacetate, methyl ethoxyacetate, ethyl ethoxyacetate, methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, methyl 2-methoxypropionate, ethyl 2-methoxypropionate, propyl 2-methoxypropionate, methyl 2-ethoxypropionate, ethyl 2-eth ... Ester, methyl 2-methoxy-2-methylpropionate, ethyl 2-ethoxy-2-methylpropionate, 3-methoxybutyl acetate, 3-methyl-3-methoxybutyl acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate and dipropylene glycol methyl ether acetate, etc.

Examples of ketone solvents include: 4-hydroxy-4-methyl-2-pentanone, acetone, 2-butanone, 2-heptanone, 3-heptanone, 4-heptanone, 4-methyl-2-pentanone, diacetone alcohol, cyclopentanone, cyclohexanone and isophorone.

Examples of alcohol solvents include methanol, ethanol, propanol, butanol, hexanol, cyclohexanol, ethylene glycol, propylene glycol, and glycerol.

Examples of aromatic hydrocarbon solvents include benzene, toluene, xylene, and mesitylene.

Examples of amide solvents include: N,N-dimethylformamide, N,N-dimethylacetamide, and N-methylpyrrolidone.

The solvent (E) is preferably at least one selected from the group consisting of 3-methoxybutanol, propylene glycol monomethyl ether acetate, ethyl lactate, propylene glycol monomethyl ether, ethyl 3-ethoxypropionate, ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diacetone alcohol, 4-hydroxy-4-methyl-2-pentanone and N,N-dimethylformamide, more preferably at least one selected from the group consisting of 3-methoxybutanol, propylene glycol monomethyl ether acetate, propylene glycol monomethyl ether, ethyl lactate, diacetone alcohol and ethyl 3-ethoxypropionate, and further preferably at least one selected from the group consisting of 3-methoxybutanol, propylene glycol monomethyl ether acetate and diacetone alcohol.

From the perspective of dispersibility, the content of the solvent (E) is preferably 70% to 95% by weight, more preferably 75% to 90% by weight, and even more preferably 80% to 90% by weight, relative to the total amount of the composition of the present invention.

<Other ingredients in the composition>

The composition of the present invention may contain other components different from the above components within the range that does not hinder the effect of the present invention. As other components, for example, additives known in the field of coloring curable compositions can be listed.

As other components, a dispersant may also be used. As a dispersant, for example, a surfactant may be listed. The surfactant may be any of a cationic surfactant, an anionic surfactant, a nonionic surfactant, and an amphoteric surfactant. As a surfactant, for example, polyester-based surfactants, polyamine-based surfactants, acrylic-based surfactants, etc. may be listed. Commercially available dispersants include KP (manufactured by Shin-Etsu Chemical Co., Ltd.), Flowlen (manufactured by Kyoeisha Chemical Co., Ltd.), Solsperse (registered trademark) (manufactured by Zeneca), EFKA (manufactured by BASF), Ajisper (registered trademark) (manufactured by Ajinomoto Fine-Techno), DISPERBYK (registered trademark) (manufactured by BYK-Chemie Japan), BYKLPN (manufactured by BYK-Chemie Japan), etc.

When a dispersant is used, its content is preferably 35 to 100 parts by weight, more preferably 35 to 65 parts by weight, further preferably 40 to 65 parts by weight, and particularly preferably 40 to 60 parts by weight, relative to 100 parts by weight of the colorant (A).

<Method for producing the composition>

The composition of the present invention can be produced, for example, by mixing a coloring agent (A) comprising at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a), a resin (B) comprising resin (B1), a solvent (E), and other components (e.g., a dispersant) as required.

The equipment for mixing the components is not particularly limited, and known equipment in the field of coloring curable compositions can be used. When using a component that is insoluble in the solvent (E) (for example, a pigment), it is preferred to use a bead mill, a paint conditioner, etc. to fully stir the mixture of the components.

<Coloring and curing composition>

The composition of the present invention obtained in the above manner, the polymerizable compound (C), and the polymerization initiator (D) are mixed to produce a colored curable composition.

In the production of the coloring curable composition, components different from the composition of the present invention, the polymerizable compound (C) and the polymerization initiator (D) may also be used. For example, a solvent (E) may be further added. As the solvent (E) that can be used in the production of the coloring curable composition, for example, the solvents described in the solvent (E) of the composition of the present invention can be listed.

Relative to the total amount of the coloring curable composition, the content of the solvent (E) is preferably 70% to 90% by weight, more preferably 75% to 90% by weight, and even more preferably 80% to 90% by weight.

The viscosity of the coloring curable composition just after production (= initial viscosity) is preferably 3mPa.s~15mPa.s, more preferably 3mPa.s~13mPa.s, and further preferably 3mPa.s~10mPa.s. The initial viscosity is a value measured using a cone plate type (E type) viscometer at a rotation speed of 100rpm and a measurement temperature of 23°C.

<Polymerizable compound (C)>

The polymerizable compound (C) is a compound that can be polymerized by active free radicals and/or acids generated from the polymerization initiator (D). The polymerizable compound (C) is preferably a free radical polymerizable compound. Examples of free radical polymerizable compounds include polymerizable compounds having ethylenic unsaturated bonds. Free radical polymerizable compounds are preferably (meth)acrylates.

Examples of the polymerizable compound (C) include compounds having one ethylenically unsaturated bond, such as nonylphenyl carbitol acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-ethylhexyl carbitol acrylate, 2-hydroxyethyl acrylate, and N-vinyl pyrrolidone; compounds having one ethylenically unsaturated bond, such as 1,6-hexanediol di(meth)acrylate, ethylene glycol di(meth)acrylate, and neopentyl glycol di(meth)acrylate. Compounds with two ethylenic unsaturated bonds, such as trihydroxymethylpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, tris(2-(meth)acryloxyethyl) isocyanurate, etc.; compounds with three ethylenic unsaturated bonds, such as pentaerythritol tetra(meth)acrylate, triethylene glycol di(meth)acrylate, bisphenol A bis(acryloyloxyethyl) ether, and 3-methylpentanediol di(meth)acrylate; compounds with three ethylenic unsaturated bonds, such as trihydroxymethylpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, and tris(2-(meth)acryloyloxyethyl) isocyanurate; Compounds with four ethylenic unsaturated bonds such as (meth)acrylate, ethylene glycol modified pentaerythritol tetra(meth)acrylate, propylene glycol modified pentaerythritol tetra(meth)acrylate, caprolactone modified pentaerythritol tetra(meth)acrylate; compounds with five ethylenic unsaturated bonds such as dipentaerythritol penta(meth)acrylate; compounds with six ethylenic unsaturated bonds such as dipentaerythritol hexa(meth)acrylate, ethylene glycol modified dipentaerythritol hexa(meth)acrylate, propylene glycol modified dipentaerythritol hexa(meth)acrylate, caprolactone modified dipentaerythritol hexa(meth)acrylate; compounds with seven or more ethylenic unsaturated bonds such as tripentaerythritol hepta(meth)acrylate, tripentaerythritol octa(meth)acrylate, four-season pentaerythritol nona(meth)acrylate, four-season pentaerythritol deca(meth)acrylate.

The polymerizable compound (C) is preferably a polymerizable compound having three or more ethylenic unsaturated bonds, and more preferably a polymerizable compound having five or six ethylenic unsaturated bonds. Specifically, dipentaerythritol penta(meth)acrylate and dipentaerythritol hexa(meth)acrylate are preferred. Commercially available products of the polymerizable compound (C) include, for example: KAYARAD (registered trademark) DPHA (Nippon Kayaku Co., Ltd.), A-TMM-3LM-N (Shin-Nakamura Chemical Co., Ltd.), and A9550 (Shin-Nakamura Chemical Co., Ltd.).

The molecular weight of the polymerizable compound (C) is preferably 150 or more and 2,900 or less, and more preferably 250 or more and 1,500 or less. The molecular weight of the polymerizable compound (C) of 1,000 or more is the weight average molecular weight (Mw) calculated by gel permeation chromatography (GPC) and converted to polystyrene.

The content of the polymerizable compound (C) relative to the total amount of the solid components of the coloring curable composition is preferably 7% to 65% by weight, more preferably 13% to 60% by weight, and further preferably 17% to 55% by weight. If the content of the polymerizable compound (C) is within the above range, the residual film rate during the formation of the coloring pattern and the chemical resistance of the color filter tend to be improved.

<Polymerization initiator (D)>

The polymerization initiator (D) is not particularly limited as long as it is a compound that can generate active radicals, acids, etc. by the action of light or heat and start the polymerization of the polymerizable compound (C), and a known polymerization initiator can be used. The polymerization initiator (D) is preferably a photoradical polymerization initiator. It is more preferred that the polymerizable compound (C) is a radical polymerizable compound, and the polymerization initiator (D) is a photoradical polymerization initiator (that is, the curable composition is a photocurable composition).

The photo-radical polymerization initiator is preferably at least one selected from the group consisting of O-acyl oxime compounds, phenyl alkyl ketone compounds, triazine compounds, acyl phosphine oxide compounds and biimidazole compounds, and is more preferably an O-acyl oxime compound.

O-acyl oxime compounds are compounds having a partial structure represented by formula (d1) (in the following formula, * represents a bonding position).

[Chemistry 26]

Examples of the O-acyl oxime compound include N-benzoyloxy-1-(4-phenylthiophenyl)butane-1-one-2-imine, N-benzoyloxy-1-(4-phenylthiophenyl)octane-1-one-2-imine, N-benzoyloxy-1-(4-phenylthiophenyl)-3-cyclopentylpropane-1-one-2-imine, N-acetyloxy-1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]ethane-1-imine, N-acetyloxy-1-[9-ethyl-6-{2-methyl-4-(3,3- dimethyl-2,4-dioxolanecyclopentylmethyloxy)benzyl}-9H-carbazol-3-yl]ethane-1-imine, N-acetyloxy-1-[9-ethyl-6-(2-methylbenzyl)-9H-carbazol-3-yl]-3-cyclopentylpropane-1-imine, N-benzyloxy-1-[9-ethyl-6-(2-methylbenzyl)-9H-carbazol-3-yl]-3-cyclopentylpropane-1-one-2-imine, N-acetyloxy-1-[4-(2-hydroxyethyloxy)phenylthiophenyl]propane-1-one-2-imine, and the like. You can also use commercially available products such as TR-PBG327 (manufactured by Changzhou Qiangli Electronic New Materials Co., Ltd.), Irgacure (registered trademark) OXE01, Irgacure (registered trademark) OXE02, Irgacure (registered trademark) OXE03, Irgacure (registered trademark) OXE04 (all manufactured by BASF), and N-1919 (manufactured by ADEKA).

The phenyl alkyl ketone compound is a compound having a partial structure represented by formula (d2) or a partial structure represented by formula (d3) (in the following formula, * represents a bonding position). In these partial structures, the benzene ring may also have a substituent.

Examples of compounds having a partial structure represented by formula (d2) include 2-methyl-2-morpholinyl-1-(4-methylthiophenyl)propane-1-one, 2-dimethylamino-1-(4-morpholinylphenyl)-2-benzylbutane-1-one, and 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(4-morpholinyl)phenyl]butane-1-one. Commercially available products such as Irgacure (registered trademark) 369, Irgacure (registered trademark) 907, and Irgacure (registered trademark) 379 (all manufactured by BASF) can also be used.

Examples of compounds having a partial structure represented by formula (d3) include: 2-hydroxy-2-methyl-1-phenylpropane-1-one, 2-hydroxy-2-methyl-1-〔4-(2-hydroxyethoxy)phenyl〕propane-1-one, 1-hydroxycyclohexylphenyl ketone, oligomers of 2-hydroxy-2-methyl-1-(4-isopropenylphenyl)propane-1-one, α,α-diethoxyacetophenone, benzyl dimethyl ketal, etc.

From the viewpoint of sensitivity, the phenylalkyl ketone compound is preferably a compound having a partial structure represented by formula (d2).

Examples of the triazine compound include 2,4-bis(trichloromethyl)-6-(4-methoxyphenyl)-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-(4-methoxynaphthyl)-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-piperonyl-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-(4-methoxyphenyl)-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-[ 2-(5-methylfuran-2-yl)vinyl〕-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-〔2-(furan-2-yl)vinyl〕-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-〔2-(4-diethylamino-2-methylphenyl)vinyl〕-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-〔2-(3,4-dimethoxyphenyl)vinyl〕-1,3,5-triazine, etc.

As the acylphosphine oxide compound, for example, 2,4,6-trimethylbenzyldiphenylphosphine oxide can be listed. Commercially available products such as Irgacure (registered trademark) 819 (manufactured by BASF) can also be used.

Examples of the biimidazole compound include 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetraphenylbiimidazole, 2,2'-bis(2,3-dichlorophenyl)-4,4',5,5'-tetraphenylbiimidazole (see, for example, Japanese Patent Laid-Open No. 6-75372 and Japanese Patent Laid-Open No. 6-75373), 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetra(alkoxyphenyl)biimidazole, 2,2'-bis(2-chlorophenyl)- 4,4',5,5'-tetrakis(dialkoxyphenyl)biimidazole, 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetrakis(trialkoxyphenyl)biimidazole (for example, see Japanese Patent Publication No. 48-38403, Japanese Patent Publication No. 62-174204), biimidazole compounds in which the phenyl groups at the 4,4',5,5'-position are substituted by carboalkoxy (for example, see Japanese Patent Publication No. 7-10913), etc.

As other polymerization initiators (D), for example, benzoin compounds such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzoin isobutyl ether; benzophenone compounds such as benzophenone, methyl o-benzoylbenzoate, 4-phenylbenzophenone, 4-benzoyl-4'-methyldiphenyl sulfide, 3,3',4,4'-tetra(tert-butylperoxycarbonyl)benzophenone, and 2,4,6-trimethylbenzophenone; quinone compounds such as 9,10-phenanthrenequinone, 2-ethylanthraquinone, and camphorquinone; 10-butyl-2-chloroacridone, benzoyl, methyl phenylglyoxylate, and titaniumocene compounds.

Examples of acid generators include onium salts such as 4-hydroxyphenyldimethylcoppersulfonate, 4-hydroxyphenyldimethylcoppersulfonate, 4-acetoxyphenyldimethylcoppersulfonate, 4-acetoxyphenyl/methyl/benzylcoppersulfonate, triphenylcoppersulfonate, triphenylcoppersulfonate, diphenyliodonium p-toluenesulfonate, diphenyliodonium hexafluoroantiphonate, nitrobenzyl toluenesulfonate, and benzoin toluenesulfonate.

Relative to 100 parts by weight of the total of the resin (B) and the polymerizable compound (C), the content of the polymerization initiator (D) is preferably 0.1 parts by weight to 30 parts by weight, and more preferably 1 part by weight to 20 parts by weight.

<Other components of the coloring and curing composition>

The coloring curable composition may also contain other components different from the above components. As other components, for example, additives known in the field of coloring curable compositions can be listed.

As other components, a leveling agent may also be used. Examples of leveling agents include silicone-based surfactants and fluorine-based surfactants.

Examples of silicone-based surfactants include surfactants having siloxane bonds in the molecule. Examples of commercially available products include: Toray Silicone DC3PA, Toray Silicone SH7PA, Toray Silicone DC11PA, Toray Silicone SH21PA, Toray Silicone SH28PA, Toray Silicone SH29PA, Toray Silicone SH30PA, Toray Silicone SH8400 (Toray Dow Corning) Corning); KP321, KP322, KP323, KP324, KP326, KP340, KP341 (manufactured by Shin-Etsu Chemical Co., Ltd.); TSF400, TSF401, TSF410, TSF4300, TSF4440, TSF4445, TSF4446, TSF4452 and TSF4460 (manufactured by Momentive Performance Materials Japan Co., Ltd.), etc.

Silicone-based surfactants may also have fluorine atoms. Examples of silicone-based surfactants having fluorine atoms include Megafac (registered trademark) R08, Megafac BL20, Megafac F475, Megafac F477, and Megafac F443 (manufactured by DIC Corporation).

Examples of fluorine-based surfactants include surfactants having a fluorine-carbon chain in the molecule. Examples of commercially available products include: Fluorad (registered trademark) FC430, Fluorad FC431 (manufactured by Sumitomo 3M Co.); Megafac (registered trademark) F142D, Megafac F171, Megafac F172, Megafac F173, Megafac F177, Megafac F183, Megafac F554, Megafac R30, Megafac R40, Megafac R555, Megafac R60, Megafac R70, Megafac R80, Megafac R90, Megafac R100, Megafac R110, Megafac R111, Megafac R112, Megafac R113, Megafac R114, Megafac R115, Megafac R116, Megafac R117, Megafac R118, Megafac R119, Megafac R120, Megafac R121, Megafac R122, Megafac R123, Megafac R124, Megafac R125, Megafac R126, Megafac R127, Megafac R128, Megafac R129, Megafac R130, Megafac R131, Megafac R132, Megafac R133, Megafac R134, Megafac R135, Megafac R136, Megafac R137, Megafac R138, Megafac R139, Megafac R140, Megafac R141, Megafac R142 fac) RS-718-K (manufactured by DIC Corporation); Eftop (registered trademark) EF301, Eftop EF303, Eftop EF351, Eftop EF352 (manufactured by Mitsubishi Materials Electronics Co., Ltd.); Surflon (registered trademark) S381, Surflon S382, Surflon SC101, Surflon SC105 (manufactured by Asahi Glass Co., Ltd.) and E5844 (manufactured by Daikin Fine Chemical Research Institute Co., Ltd.), etc.

When a leveling agent is used, its content is preferably 0.001 wt% to 0.2 wt%, more preferably 0.002 wt% to 0.1 wt%, and further preferably 0.01 wt% to 0.05 wt%, relative to the total amount of the coloring curable composition. If the content of the leveling agent is within the above range, the flatness of the color filter obtained from the coloring curable composition can be improved.

[Implementation example]

The following examples are given to more specifically illustrate the present invention, but the present invention is not limited to the following examples, and can be implemented with appropriate changes within the scope of the above and the following purposes, all of which are included in the technical scope of the present invention. In addition, the "parts" recorded in the following examples refer to "parts by weight", and the "%" other than the viscosity increase rate (%) described below refers to "% by weight".

Manufacturing example 1: Manufacturing of resin (B1-1)

750.0 parts of 3-methoxybutanol were placed in a flask equipped with a stirring device, a dropping funnel, a condenser, a thermometer, and a gas inlet tube, and the mixture was stirred while replacing the atmosphere with nitrogen, and the temperature was raised to 80°C. Next, the following substance was added dropwise from the dropping funnel to the flask, wherein 28.8 parts of 2,2'-azobis(2,4-dimethylvaleronitrile) (polymerization initiator) was added to a monomer mixture containing 25.6 parts of methacrylic acid, 146.4 parts of 3-methacryloyloxypropyltrimethoxysilane, and 49.2 parts of methyl methacrylate. After the addition was completed, the mixture was stirred at 80°C for 5 hours to perform a copolymerization reaction, and a copolymer (hereinafter referred to as "resin (B1-1)") solution (solid content 20%) was obtained. The acid value (solid content conversion value) of the resin (B1-1) is 82 mgKOH/g, its weight average molecular weight (Mw) is 5,500, and its silane equivalent is 500.

Manufacturing Example 2: Manufacturing of Resin (B2-1)

A flask including a reflux cooler, a dropping funnel and a stirrer was set to a nitrogen atmosphere, 280 parts of propylene glycol monomethyl ether acetate was placed, and heated to 80° C. while stirring. Then, a solution prepared by dissolving 38 parts of acrylic acid, 289 parts of a mixture of 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decane-8-yl acrylate and 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decane-9-yl acrylate (containing ratio of 50:50 in molar ratio) in 125 parts of propylene glycol monomethyl ether acetate was added dropwise to the flask over about 5 hours using a dropping pump. On the other hand, a solution prepared by dissolving 33 parts of 2,2-azobis(2,4-dimethylvaleronitrile) as a polymerization initiator in 235 parts of propylene glycol monomethyl ether acetate was dripped into the flask using another dripping pump over a period of about 6 hours. After the dripping of the polymerization initiator was completed, the mixture was kept at 80°C for about 4 hours and then cooled to room temperature to obtain a copolymer (hereinafter referred to as "resin (B2-1)") solution (solid content 35.1%). The acid value (solid content conversion value) of resin (B2-1) was 77 mgKOH/g, its weight average molecular weight (Mw) was 9,200, and its polydispersity (Mw/Mn) was 2.08.

Manufacturing Example 3: Manufacturing of Resin (B2-2)

A 1L flask equipped with a reflux cooler, a dropping funnel and a stirrer was replaced with a nitrogen atmosphere, 141 parts of ethyl lactate and 178 parts of propylene glycol monomethyl ether acetate were placed, and heated to 85° C. while stirring. Subsequently, a mixed solution of 38 parts of acrylic acid, 25 parts of a mixture of 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decane-8-yl acrylate and 3,4-epoxytricyclo[5.2.1.0 ^2,6 ]decane-9-yl acrylate, 137 parts of N-cyclohexylmaleimide, 50 parts of 2-hydroxyethyl methacrylate, and 338 parts of propylene glycol monomethyl ether acetate was added dropwise over 5 hours. On the other hand, a solution prepared by dissolving 5 parts of 2,2-azobisisobutyronitrile in 88 parts of propylene glycol monomethyl ether acetate was added dropwise over 6 hours. After the addition was completed, the mixture was kept at 85°C for 4 hours and then cooled to room temperature to obtain a copolymer (hereinafter referred to as "resin (B2-2)") solution (solid content 25.6%). The viscosity of the resin (B2-2) solution at 23°C measured by a B-type viscometer was 23 mPa. s. In addition, the acid value (solid content conversion value) of the resin (B2-2) was 111 mgKOH/g, its weight average molecular weight (Mw) was 8,000, and its polydispersity (Mw/Mn) was 2.1.

The weight average molecular weight (Mw) and number average molecular weight (Mn) of the resin are measured by GPC under the following conditions.

Device: K2479 (manufactured by Shimadzu Corporation)

Column: SHIMADZU Shim-pack GPC-80M

Column temperature: 40℃

Solvent: THF (tetrahydrofuran, tetrahydrofuran)

Concentration of the tested liquid: 25mg/mL (solvent: THF)

Flow rate: 1.0mL/min

Detector: RI

Standard materials for calibration: TSK standard polystyrene F-40, F-4, F-288, A-2500, A-500 (manufactured by Tosoh Corporation)

Preparation Example 4: Preparation of the compound represented by formula (1a-1)

In the same manner as described in Example 7 of Japanese Patent Publication No. 2018-127596, a compound represented by the following formula (1a-1) is prepared as a coloring agent (A).

Preparation Example 5: Preparation of the compound represented by formula (2a-1)

In the same manner as described in Synthesis Example 19 of Japanese Patent Publication No. 2015-38201, a compound represented by the following formula (2a-1) is prepared as a coloring agent (A).

[Chemistry 29]

Example 1: Preparation of composition (1)

7 parts of compound (1a-1), 3 parts of dispersant (DISPERBYK (registered trademark)-2050 (manufactured by BYK-Chemie Japan)), 3 parts of resin (B1-1) (converted to solid content), 81 parts of propylene glycol monomethyl ether acetate, 6 parts of diacetone alcohol and 300 parts of 0.2 mm zirconia beads were mixed, and the obtained mixture was shaken for 3 hours using a coating conditioner (manufactured by LAU). Thereafter, the zirconia beads were removed by filtration to obtain a composition (1).

The content of the coloring agent (A) (compound (1a-1)) in the composition (1) is 53.8% relative to the total amount of the solid components.

The content of solvent (E) in composition (1) is 87% relative to the total amount of the composition.

Example 2: Preparation of composition (2)

7 parts of compound (1a-1), 3 parts of dispersant (DISPERBYK (registered trademark)-2050 (manufactured by BYK-Chemie Japan)), 1 part of resin (B1-1) (converted to solid content), 2 parts of resin (B2-1) (converted to solid content), 81 parts of propylene glycol monomethyl ether acetate, 6 parts of diacetone alcohol and 300 parts of 0.2 mm zirconia beads were mixed, and the obtained mixture was shaken for 3 hours using a coating conditioner (manufactured by LAU). Thereafter, the zirconia beads were removed by filtration to obtain composition (2).

The content of the coloring agent (A) (compound (1a-1)) in the composition (2) is 53.8% relative to the total amount of the solid components.

The content of solvent (E) in composition (2) is 87% relative to the total amount of the composition.

Comparative Example 1: Production of composition (3)

7 parts of compound (1a-1), 3 parts of dispersant (DISPERBYK (registered trademark)-2050 (manufactured by BYK-Chemie Japan)), 3 parts of resin (B2-1) (converted to solid content), 81 parts of propylene glycol monomethyl ether acetate, 6 parts of diacetone alcohol and 300 parts of 0.2 mm zirconia beads were mixed and shaken for 3 hours using a coating conditioner (manufactured by LAU). Thereafter, the zirconia beads were removed by filtration to obtain a composition (3).

The content of the coloring agent (A) (compound (1a-1)) in the solid component of the composition (3) is 53.8% relative to the total amount of the solid component.

The content of solvent (E) in composition (3) is 87% relative to the total amount of the composition.

Example 3: Preparation of composition (4)

5 parts of compound (2a-1), 4 parts of dispersant (BYKLPN-21324 (manufactured by BYK-Chemie Japan)), 4 parts of resin (B1-1) (converted to solid content), 87 parts of propylene glycol monomethyl ether acetate and 300 parts of 0.2 mm zirconia beads were mixed, and the obtained mixture was shaken for 3 hours using a coating conditioner (manufactured by LAU). Thereafter, the zirconia beads were removed by filtration to obtain composition (4).

The content of the coloring agent (A) (compound (2a-1)) in the composition (4) is 38.5% relative to the total amount of the solid components.

The content of solvent (E) in composition (4) is 87% relative to the total amount of the composition.

Comparative Example 2: Production of composition (5)

5 parts of compound (2a-1), 4 parts of dispersant (BYKLPN-21324 (manufactured by BYK-Chemie Japan)), 4 parts of resin (B2-1) (converted to solid content), 87 parts of propylene glycol monomethyl ether acetate and 300 parts of 0.2 mm zirconia beads were mixed and shaken for 3 hours using a coating conditioner (manufactured by LAU). Thereafter, the zirconia beads were removed by filtration to obtain a composition (5).

The content of the coloring agent (A) (compound (2a-1)) in the composition (5) is 38.5% relative to the total amount of the solid components.

The content of solvent (E) in composition (5) is 87% relative to the total amount of the composition.

<Evaluation of composition (1)~composition (5)>

As described below, the compositions (1) to (5) obtained in Examples 1 to 3 and Comparative Examples 1 and 2 were used to produce colored curable compositions (1) to (6), and the viscosity increase rates of the obtained colored curable compositions were measured.

(1-1) Production of coloring hardening composition (1) ~ coloring hardening composition (3)

281 parts of any one of the compositions (1) to (3), 50 parts of a resin (B2-2) (solid content conversion), 50 parts of dipentaerythritol hexaacrylate (manufactured by Nippon Kayaku Co., Ltd., polymerizable compound (C)), 3 parts of N-benzoyloxy-1-(4-phenylthiophenyl)octan-1-one-2-imine ("Irgacure (registered trademark) OXE01" manufactured by BASF, polymerization initiator (D)), 500 parts of propylene glycol monomethyl ether acetate (solvent (E)), and polyether modified silicone oil ("Toray Silicone (Toray Dow Corning) Co., Ltd., Toray Silicone ( ... Mix 0.1 part of 1,2-dimethylsiloxane (SH8400) and 0.1 part of leveling agent to obtain colored curable composition (1) to colored curable composition (3).

(1-2) Production of coloring curable composition (4) and coloring curable composition (5)

424 parts of either composition (4) or composition (5), 50 parts of resin (B2-2) (solid content conversion), 50 parts of dipentaerythritol hexaacrylate (manufactured by Nippon Kayaku Co., Ltd., polymerizable compound (C)), 3 parts of N-benzoyloxy-1-(4-phenylthiophenyl)octan-1-one-2-imine ("Irgacure (registered trademark) OXE01" manufactured by BASF, polymerization initiator (D)), 430 parts of propylene glycol monomethyl ether acetate (solvent (E)), and polyether modified silicone oil ("Toray Silicone (Toray Dow Corning) Co., Ltd., Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Silicone (Toray Mix 0.1 part of 1,2-dimethylsiloxane (SH8400) and 0.1 part of leveling agent to obtain a colored curable composition (4) and a colored curable composition (5).

(1-3) Production of coloring curable composition (6)

424 parts of the composition (5), 50 parts of the resin (B2-2) (solid content conversion), 50 parts of dipentaerythritol hexaacrylate (manufactured by Nippon Kayaku Co., Ltd., polymerizable compound (C)), 3 parts of N-benzoyloxy-1-(4-phenylthiophenyl)octan-1-one-2-imine ("Irgacure (registered trademark) OXE01" manufactured by BASF, polymerization initiator (D)), 360 parts of propylene glycol monomethyl ether acetate (solvent (E)), 70 parts of 3-methoxybutanol (solvent (E)), and polyether modified silicone oil ("Toray Silicone (Toray Dow Corning) Co., Ltd.)) were mixed. Mix 0.1 part of 1,2-dimethoxy-1,2-dimethoxy-1-isocyanate (SH8400) and 0.1 part of leveling agent to obtain a colored curable composition (6).

(2) Determination of viscosity increase rate

The viscosity (=initial viscosity) of the coloring curable composition (1) to the coloring curable composition (6) just after production was measured using a cone plate type (E type) viscometer ("Viscometer (TV-25) manufactured by Toki Sangyo Co., Ltd.") at a rotation speed of 100 rpm and a measurement temperature of 23°C. The results are shown in Table 1.

The viscosity of the coloring curable composition (1) to the coloring curable composition (6) after being stored at 40°C for 7 days (= viscosity after storage) was measured in the same manner as described above, and the viscosity increase rate was calculated using the following formula.

Thickening rate (%) = 100 × viscosity after storage (mPa.s) / initial viscosity (mPa.s).

The results are shown in Table 1.

As shown in Table 1, among the colored curable compositions (1) to (3) obtained using the compound (1a-1) as the colorant (A), the viscosity increase rates (101% and 102%) of the colored curable compositions (1) and (2) obtained from the compositions (1) and (2) containing the resin (B-1) (Examples 1 and 2) were further suppressed than the viscosity increase rate (111%) of the colored curable composition (3) obtained from the composition (3) not containing the resin (B-1) (Comparative Example 1).

In addition, as shown in Table 1, among the colored curable compositions (4) to (6) obtained by using the compound (2a-1) as the coloring agent (A), the viscosity increase rate (100%) of the colored curable composition (4) obtained from the composition (4) containing the resin (B-1) (Example 3) is further suppressed than the viscosity increase rates (104% and 103%) of the colored curable composition (5) and the colored curable composition (6) obtained from the composition (5) not containing the resin (B-1) (Comparative Example 2).

[Industrial availability]

The composition of the present invention is prepared in advance, and then a colored curable composition is prepared using the composition of the present invention, thereby suppressing the viscosity increase of the colored curable composition. Such a colored curable composition is useful, for example, for the preparation of a color filter, etc.

Claims (16)

A composition comprising a colorant (A), a resin (B) and a solvent (E), wherein the colorant (A) comprises at least one selected from the group consisting of a compound represented by formula (1a), a compound represented by formula (2a), and a compound represented by formula (3a),

[In formula (1a), R ^41a and R ^42a each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^41a and R ^42a are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded, R 43a and R 44a each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^43a and R ^44a each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^{43a and R 44a} each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, R ^47a to R 54a are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atoms to which they are bonded, R ^47a to R ^54a are independently hydrogen atoms, halogen atoms, nitro groups, hydroxyl groups, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , or an alkyl group having 1 to 8 carbon atoms which may have a substituent, R ^f is a fluoroalkyl group having 1 to 12 carbon atoms, and the ring T ^1a represents an aromatic alkyl ring having 6 to 14 carbon atoms which may have a substituent or an aromatic heterocyclic ring having 5 to 10 members which may have a substituent, the saturated alkyl group having 1 to 20 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amino group, the aromatic alkyl group having 6 to 14 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and an alkyl group having 1 to 8 carbon atoms which may have a substituent, and the aralkyl group having 7 to 30 carbon atoms may have a substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and at least one of the group consisting of an alkyl group having 1 to 8 carbon atoms which may have a substituent, the aromatic hydrocarbon ring having 6 to 14 carbon atoms may have a substituent selected from a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and at least one of the group consisting of an alkyl group having 1 to 8 carbon atoms which may have a substituent, the 5-membered to 10-membered aromatic heterocyclic ring may have a substituent selected from a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and at least one of the group consisting of an alkyl group having 1 to 8 carbon atoms which may have a substituent, the alkyl group having 1 to 8 carbon atoms which may have a substituent is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amino group, when the saturated alkyl group having 1 to 20 carbon atoms is a saturated alkyl group having 2 to 20 carbon atoms, -CH ₂ - contained in the saturated alkyl group may be substituted with -O- or -CO-, when the alkyl group having 1 to 8 carbon atoms is an alkyl group having 2 to 8 carbon atoms, -CH ₂ - contained in the alkyl group may be substituted with -O- or -CO-, r represents an integer greater than 1, Mr ⁺ represents a hydrogen ion, an r-valent metal ion or N ⁺ (R ^55a ) ₄ , four R ^{55a s} may be the same or different, R ^55a represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms, or an aralkyl group having 7 to 10 carbon atoms; k represents the total number of -SO ₃ ^- and -SO ₂ -N ^- -SO ₂ -R ^f possessed by the anion represented by the formula (1a-A), and is an integer greater than or equal to 2;

[In formula (1a-A), ring ^T1a , ^R41a ~ ^R44a and ^R47a ~ ^R54a have the same meanings as described above], when r is an integer greater than 2, the multiple anions represented by formula (1a-A) may be the same or different, and when k-1 is an integer greater than 2, the multiple Mr ⁺ may be the same or different];

[In formula (2a), R ^41b and R ^42b each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^41b and R ^42b are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded, R 43b and R 44b each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^43b and R ^44b each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 43b and R ^44b each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, R ^47b to R 54b are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atoms to which they are bonded, R ^47b to R ^54b are independently a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, or an alkyl group having 1 to 8 carbon atoms which may have a substituent, and the ring T ^1b represents an aromatic alkyl ring having 6 to 14 carbon atoms which may have a substituent or an aromatic heterocyclic ring having 5 to 10 members which may have a substituent, the saturated alkyl group having 1 to 20 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amino group, the aromatic alkyl group having 6 to 14 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group and an alkyl group having 1 to 8 carbon atoms which may have a substituent, and the aralkyl group having 7 to 30 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group and an alkyl group having 1 to 8 carbon atoms which may have a substituent , the aromatic alkyl ring having 6 to 14 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a methyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent, the aromatic heterocyclic ring having 5 to 10 members may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a methyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent, the alkyl group having 1 to 8 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a methyl group, and an amino group, and when the saturated alkyl group having 1 to 20 carbon atoms is a saturated alkyl group having 2 to 20 carbon atoms, the -CH _2- may be substituted with -O- or -CO-, when the alkyl group having 1 to 8 carbon atoms is an alkyl group having 2 to 8 carbon atoms, _-CH2- contained in the alkyl group may be substituted with -O- or -CO-, m represents an integer greater than 1, [Y] ^m- represents an m-valent anion, and when m is an integer greater than 2, the plurality of cations represented by formula (2a-C) may be the same or different;

[In formula (2a-C), ring T ^1b , R ^41b to R ^44b and R ^47b to R ^54b have the same meanings as described above]];

[In the formula (3a), ^R1 and ^R2 each independently represent a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 10 carbon atoms which may have a substituent, or ^-R12 -Si( ^R13 ) ₃ ; or ^R1 and ^R2 are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded; ^R3 and ^R4 each independently represent a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 10 carbon atoms which may have a substituent, or a group represented by ^-R12 -Si( ^R13 ) ₃ ; or ^R3 and R4 are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded; R ⁵ represents -OH, -SO ₃ ^- , -SO ₃ ^- Z ⁺ , -SO ₃ R ⁸ , -CO 2 ^- Z + , -CO ₂ R ⁸ , or -SO ₂ NR ⁹ R ¹⁰ , R ⁶ and R ⁷ each independently represent a hydrogen atom or an alkyl group ^having 1 to 6 carbon atoms, p represents an integer of 0 to 5, _and when p is an integer greater than 2, a plurality of R ^{5 s} may be the same or different, q represents 0 or 1, X represents a halogen atom, Z ⁺ represents N ⁺ (R ¹¹ ) ₄ , Na ⁺ or K ⁺ , and four R ^{11 s} may be the same or different, R ⁸ represents a hydrogen atom, or a saturated alkyl group having 1 to 20 carbon atoms which may have a halogen atom, R R ⁹ and R ¹⁰ each independently represent a hydrogen atom or a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, or R ⁹ and R ¹⁰ are bonded to form a 3-membered to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded, R ¹¹ represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms or an aralkyl group having 7 to 10 carbon atoms, R ¹² represents an alkanediyl group having 1 to 10 carbon atoms, R ¹³ represents a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and the three R ^13s may be the same or different, R ¹ to R The saturated alkyl group having 1 to 20 carbon atoms of R 1 to ^{R 4} may have a substituent selected from the group consisting of an aromatic alkyl group having 6 to 10 carbon atoms, a halogen atom, a hydroxyl group, a formyl group, and a carboxyl group; the saturated alkyl group having 6 to 10 carbon atoms of R ¹ to R ⁴ may have a substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, a saturated alkyl group having 1 to 20 carbon atoms which may have a halogen atom, -OR ⁸ , -SO ₃ ^- , -SO ₃ ^- Z ⁺ , -SO ₃ R ⁸ , -CO ₂ ^- Z ⁺ , -CO ₂ R ⁸ , and -SO ₂ NR ⁹ R ¹⁰ ; in R ¹ to R In the case where the saturated alkyl group having 1 to 20 carbon atoms in ^{R 4} is a saturated alkyl group having 2 to 20 carbon atoms, -CH ₂ - contained in the saturated alkyl group may be substituted with -O-, -CO- or -NR ¹¹ -; the saturated alkyl group having 1 to 20 carbon atoms in R ⁹ and R ¹⁰ may have a substituent selected from the group consisting of a hydroxyl group, a formyl group and a halogen atom; in the case where the saturated alkyl group having 1 to 20 carbon atoms in R ⁹ and R ¹⁰ is a saturated alkyl group having 2 to 20 carbon atoms, -CH ₂ - contained in the saturated alkyl group may be substituted with -O-, -CO- or -NR ⁸ -; in R ¹² , when the alkanediyl group having 1 to 10 carbon atoms is an alkanediyl group having 2 to 10 carbon atoms, -CH ₂ - contained in the alkanediyl group may be substituted with -O-, -CO- or -NR ⁸ -, and when -SO ₃ ^- in ionic form exists in the compound represented by formula (3a), the number of -SO 3 - is 1]; the resin (B) comprises a resin (B1) containing a constituent unit (b1-1) represented by formula (1b),

[In formula (1b), R ^1B represents a hydrogen atom or a methyl group, R ^2B to R ^4B each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, n represents an integer of 1 to 10, and * represents a bonding position, wherein at least one of R ^2B to R ^4B is an alkoxy group having 1 to 6 carbon atoms], and the content of the colorant (A) is 35% by weight to 70% by weight relative to the total amount of the solid components of the composition, wherein the content of the resin (B1) is 10 parts by weight to 100 parts by weight relative to 100 parts by weight of the colorant (A). The composition as described in claim 1, wherein the content of the coloring agent (A) is 40% to 70% by weight relative to the total amount of the solid components of the composition. The composition according to claim 1 or claim 2, wherein the ring T ^1a in formula (1a) is a ring represented by formula (1t),

[In the formula (1t), ^R45a and ^R46a each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or ^R45a and ^R46a are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded, ^R56a represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, ^L1a represents a sulfur atom, an oxygen atom, or ^-NR57a- , R ^57a represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, the saturated alkyl group having 1 to 20 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amine group, the aromatic alkyl group having 6 to 14 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and an alkyl group having 1 to 8 carbon atoms which may have a substituent, and the aralkyl group having 7 to 30 carbon atoms may have a substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO ₃ ^- , -SO ₂ -N ^- -SO ₂ -R ^f , and at least one of the group consisting of an alkyl group having 1 to 8 carbon atoms which may have a substituent, wherein the alkyl group having 1 to 8 carbon atoms which may have a substituent is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amino group, ^Rf represents a fluoroalkyl group having 1 to 12 carbon atoms, and * represents a bonding position with a carbon cation]. The composition as described in claim 1 or claim 2, wherein in formula (1a), r is 2, and Mr ⁺ is a divalent metal ion. The composition of claim 1 or claim 2, wherein in formula (1a), R ^41a and R ^43a are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^42a and R ^44a are each independently a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , R ^47a to R ^54a are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or -SO ₃ ^- , and ring T ^1a is a ring represented by formula (1t),

[In formula (1t), R ^45a is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^46a is a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , R ^56a is a phenyl group which may have at least one substituent selected from the group consisting of a halogen atom, an alkyl group having 1 to 8 carbon atoms and -SO ₃ ^- , L ^1a is a sulfur atom, and * represents a bonding position with a carbon cation], r is 2, k represents the total number of -SO ₃ ^- possessed by the anions represented by formula (1a-A) and is 2, the two anions represented by formula (1a-A) are the same, and Mr ⁺ is a barium ion. The composition according to claim 1 or claim 2, wherein the ring T ^1b in formula (2a) is a ring represented by formula (2t),

[In the formula (2t), R ^45b and R ^46b each independently represent a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R ^45b and R ^46b are bonded to form a 3- to 10-membered nitrogen-containing heterocyclic ring together with the nitrogen atom to which they are bonded, R ^56b represents a hydrogen atom, a saturated alkyl group having 1 to 20 carbon atoms which may have a substituent, an aromatic alkyl group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, L ^1b represents a sulfur atom, an oxygen atom, or -NR ^57b -, R ^57b represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, the saturated alkyl group having 1 to 20 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group and an amino group, and the aromatic alkyl group having 6 to 14 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group and an alkyl group having 1 to 8 carbon atoms which may have a substituent. The aralkyl group having 7 to 30 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent, the alkyl group having 1 to 8 carbon atoms may have at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, and an amine group, and * represents a bonding position with a carbon cation]. The composition as described in claim 1 or claim 2, wherein [Y] ^m- in formula (2a) is a polyanion containing a tungsten atom. The composition of claim 1 or claim 2, wherein [Y] ^m- in formula (2a) is [PW ₁₂ O ₄₀ ] ^3- , [P ₂ W ₁₈ O ₆₂ ] ^6- , [SiW ₁₂ O ₄₀ ] ^4- , [P ₂ W ₁₇ O ₆₁ ] ^10- , [P ₂ W ₁₅ O ₅₆ ] ^12- , [H ₂ P ₂ W ₁₂ O ₄₈ ] ^12- , [NaP ₅ W ₃₀ O ₁₁₀ ] ^14- , [SiW ₉ O ₃₄ ] ^10- , [SiW ₁₀ O ₃₆ ] ^8- , [SiW ₁₁ O ₃₉ ] ^8- , [W ₆ O ₁₉ ] ^2- , [W ₁₀ O ₃₂ ] ^4- or [WO ₄ ] ^2- . The composition of claim 1 or claim 2, wherein in formula (2a), R ^41b , R ^43b and R ^47b to R ^54b are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^42b and R ^44b are each independently a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, and ring T ^1b is a ring represented by formula (2t),

[In formula (2t), R ^45b is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ^46b is a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, R ^56b is a phenyl group which may have at least one substituent selected from the group consisting of a halogen atom and an alkyl group having 1 to 8 carbon atoms, L ^1b is a sulfur atom, and * represents a bonding position with a carbon cation], m is 3, the three cations represented by formula (2a-c) are the same, and [Y] ^m- is [PW ₁₂ O ₄₀ ] ^3- . The composition of claim 1 or claim 2, wherein in formula (3a), ^R1 and ^R3 are each independently a hydrogen atom; an alkyl group having 1 to 8 carbon atoms which may have a carboxyl group; a phenyl group which may have at least one substituent selected from the group consisting of an alkyl group having 1 ^to 8 carbon atoms and _-SO2NR9R10 ; or ^{-R12 -} Si( ^R13 ) ₃ , ^R2 and ^R4 are each independently a alkyl group having 1 to 8 carbon atoms which may have a ^carboxyl group; a phenyl group which may have at least one substituent selected from the group consisting of an ^alkyl group having 1 to 8 carbon atoms and _-SO2NR9R10 ; or ^-R12 -Si( ^R13 ) ₃ , ^{R5 is} _-SO3- , ^R6 and ^R7 are both a hydrogen atom, ^R9 and R10 are each a hydrogen atom, ^{R 10} is independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R ¹² is an alkanediyl group having 1 to 6 carbon atoms, three R ¹³ are all alkoxy groups having 1 to 4 carbon atoms, p is 1, and q is 0. The composition as described in claim 1 or claim 2, wherein the total content of the compound represented by formula (1a), the compound represented by formula (2a) and the compound represented by formula (3a) is 50% by weight to 100% by weight relative to the total amount of the coloring agent (A). A composition as described in claim 1 or claim 2, wherein at least one selected from the group consisting of compounds represented by formula (1a), compounds represented by formula (2a) and compounds represented by formula (3a) is a compound represented by formula (1a), and the content of the compound represented by formula (1a) is 50% by weight to 100% by weight relative to the total amount of the coloring agent (A). A composition as described in claim 1 or claim 2, wherein at least one selected from the group consisting of a compound represented by formula (1a), a compound represented by formula (2a) and a compound represented by formula (3a) is a compound represented by formula (2a), and the content of the compound represented by formula (2a) is 50% by weight to 100% by weight relative to the total amount of the coloring agent (A). The composition as described in claim 1 or claim 2, wherein the resin (B1) is a copolymer comprising the constituent unit (b1-1), the constituent unit (b1-2) derived from a polymerizable unsaturated compound having an acidic group, and other constituent units (b1-3), and the amount of the constituent unit (b1-1) is 1 mol% to 50 mol% when the total of all constituent units in the copolymer is set to 100 mol%. The composition as described in claim 1 or claim 2, wherein the weight average molecular weight of the resin (B1) is 1,000 to 50,000. The composition as described in claim 1 or claim 2, wherein the content of the resin (B1) is 10 parts by weight to 60 parts by weight relative to 100 parts by weight of the coloring agent (A).