WO2011001788A1 - 硬化性樹脂組成物及びその硬化物 - Google Patents
硬化性樹脂組成物及びその硬化物 Download PDFInfo
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- WO2011001788A1 WO2011001788A1 PCT/JP2010/059522 JP2010059522W WO2011001788A1 WO 2011001788 A1 WO2011001788 A1 WO 2011001788A1 JP 2010059522 W JP2010059522 W JP 2010059522W WO 2011001788 A1 WO2011001788 A1 WO 2011001788A1
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- ADRNDEYUTXVXHM-UHFFFAOYSA-N O=C(c1ccccc1)c(ccc(Sc(cc1)ccc1[S+](c(cc1)ccc1F)c(cc1)ccc1F)c1)c1Cl Chemical compound O=C(c1ccccc1)c(ccc(Sc(cc1)ccc1[S+](c(cc1)ccc1F)c(cc1)ccc1F)c1)c1Cl ADRNDEYUTXVXHM-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
- C08G59/245—Di-epoxy compounds carbocyclic aromatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/32—Epoxy compounds containing three or more epoxy groups
- C08G59/3218—Carbocyclic compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/621—Phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
Definitions
- the present invention relates to a liquid curable resin composition suitable for production of a high refractive index resin cured product, excellent in handling properties, and less colored after curing.
- epoxy resins have been actively developed in the fields of electronic materials and optical materials due to the excellent electrical properties, heat resistance, adhesiveness, etc. of the cured resin combined with a curing agent.
- semiconductor sealing materials and the like can be mentioned.
- antireflection films such as liquid crystal displays, protective films for color filters, optical waveguides, lenses used for optical devices such as cameras. , Mirrors and prisms.
- a high refractive index is required for the purpose of weight reduction.
- Patent Documents 1 and 2 report an epoxy compound having a fluorene skeleton.
- the compounds described in these documents have a problem in the storage stability due to crystal precipitation in the resin composition and the colorability of the resulting cured product.
- JP 05-215902 A Japanese Patent Laid-Open No. 2005-314692
- An object of the present invention is to provide a curable resin composition excellent in handling property and storage stability, and a high refractive index cured product excellent in low colorability.
- the present inventor can achieve the above object by a curable resin composition containing an epoxy compound having a benzo or naphthocycloalkane skeleton and an energy ray-sensitive cationic polymerization initiator and a cured product thereof. I found out.
- the present invention has been made on the basis of the above knowledge, and includes a curable resin composition containing an epoxy compound represented by the following general formula (I) and an energy ray-sensitive cationic polymerization initiator, and the curable resin composition:
- the present invention provides a cured product obtained by irradiating an object with energy rays.
- X, Y and Z are each independently an alkyl group having 1 to 10 carbon atoms which may be substituted with a halogen atom, or 6 to 20 carbon atoms which may be substituted with a halogen atom.
- An arylalkenyl group having 8 to 20 carbon atoms, an arylalkyl group having 7 to 20 carbon atoms that may be substituted with a halogen atom, or a complex having 2 to 20 carbon atoms that may be substituted with a halogen atom Represents a cyclic group or a halogen atom,
- the methylene group in the alkyl group and arylalkyl group and the direct bond in the aryl group may be interrupted by an
- k represents a number from 0 to 4
- p represents a number from 0 to 8
- r represents a number from 0 to 4
- n represents a number from 0 to 10
- x represents a number from 0 to 4
- y represents The number of 0-4 is represented, the sum of the number of x and y is 2-4, and the optical isomer which exists when n is not 0 may be any isomer.
- the curable resin composition of the present invention has a low viscosity and excellent storage stability, and gives a cured product having a high refractive index and low colorability.
- the epoxy compound used in the present invention is represented by the above general formula (I), and has a benzo or naphthocycloalkane skeleton in its structure.
- alkyl group having 1 to 10 carbon atoms which may be substituted with the halogen atom represented by X, Y and Z in the general formula (I) include, for example, methyl, ethyl, propyl, isopropyl, butyl, s -Butyl, t-butyl, isobutyl, amyl, isoamyl, t-amyl, hexyl, heptyl, isoheptyl, t-heptyl, n-octyl, isooctyl, t-octyl, 2-ethylhexyl, n-nonyl, n-decyl, tri Fluoromethyl, difluoromethyl, monofluoromethyl, pentafluoroethyl, tetrafluoroethyl, trifluoroethyl, difluoroethyl, heptafluoroprop
- Examples of the aryl group having 6 to 20 carbon atoms which may be substituted with a halogen atom represented by X, Y and Z in the general formula (I) include phenyl, 1-naphthyl, 2-naphthyl, 1 -Anthryl, 1-phenanthryl, o-tolyl, m-tolyl, p-tolyl, 3-fluorenyl, 9-fluorenyl, 1-tetrahydronaphthyl, 2-tetrahydronaphthyl, 1-acenaphthenyl, 1-indanyl, 2-indanyl, 4 -Vinylphenyl, 3-isopropylphenyl, 4-isopropylphenyl, 4-butylphenyl, 4-isobutylphenyl, 4-t-butylphenyl, 4-hexylphenyl, 4-cyclohexylphenyl, 4-octylpheny
- Examples of the aryloxy group having 6 to 20 carbon atoms which may be substituted with halogen atoms represented by X, Y and Z in the general formula (I) include, for example, phenoxy, 2-methylphenoxy, 3-methyl Phenoxy, 4-methylphenoxy, 2,3-dimethylphenoxy, 2,4-dimethylphenoxy, 2,5-dimethylphenoxy, 2,6-dimethylphenoxy, 3,4-dimethylphenoxy, 3,5-dimethylphenoxy, 2 , 3,4-trimethylphenoxy, 2,3,5-trimethylphenoxy, 2,3,6-trimethylphenoxy, 2,4,5-trimethylphenoxy, 2,4,6-trimethylphenoxy, 3,4,5- Trimethylphenoxy, 2,3,4,5-tetramethylphenoxy, 2,3,4,6-tetramethylphenoxy, , 3,5,6-tetramethylphenoxy, pentamethylphenoxy, ethylphenoxy, n-propylphenoxy, isopropylphenoxy, n-butylphenoxy, sec
- Examples of the arylthio group having 6 to 20 carbon atoms which may be substituted with a halogen atom represented by X, Y and Z in the general formula (I) include, for example, phenylthio, 2-methylphenylthio, 3-methyl Phenylthio, 4-methylphenylthio, 2,3-dimethylphenylthio, 2,4-dimethylphenylthio, 2,5-dimethylphenylthio, 2,6-dimethylphenylthio, 3,4-dimethylphenylthio, 3 , 5-dimethylphenylthio, 2,3,4-trimethylphenylthio, 2,3,5-trimethylphenylthio, 2,3,6-trimethylphenylthio, 2,4,5-trimethylphenylthio, 2,4 , 6-trimethylphenylthio, 3,4,5-trimethylphenylthio, 2,3,4,5-tetramethylphenylthio, 2,3, , 6-tetramethylphenylthi
- Examples of the arylalkenyl group having 8 to 20 carbon atoms which may be substituted with the halogen atom represented by X, Y and Z in the general formula (I) include styryl, 4-fluorostyryl and the like. .
- Examples of the arylalkyl group having 7 to 20 carbon atoms which may be substituted with the halogen atom represented by X, Y and Z in the general formula (I) include, for example, benzyl, phenethyl, 2-phenylpropyl, diphenyl Examples thereof include methyl, triphenylmethyl, 4-chlorophenylmethyl, benzyloxy group, 1-naphthylmethoxy group, 2-naphthylmethoxy group, 1-anthrylmethoxy and the like.
- heterocyclic group having 2 to 20 carbon atoms which may be substituted with the halogen atom represented by X, Y and Z in the general formula (I) include, for example, pyrrolyl, pyridyl, pyrimidyl, pyridazyl, piperazyl, Piperidyl, pyranyl, pyrazolyl, triazyl, pyrrolidyl, quinolyl, isoquinolyl, imidazolyl, benzimidazolyl, triazolyl, furyl, furanyl, benzofuranyl, thienyl, thiophenyl, benzothiophenyl, thiadiazolyl, thiazolyl, benzothiazolyl, oxazolyl, benzoxazolyl, isothiazolyl, isoxazolyl , Indolyl, euroridyl, morpholinyl, thiomorpholinyl, 2-pyrrolidinon-1-yl,
- Examples of the ring structure that may be formed by adjacent X's in the general formula (I) include cyclopentane ring, cyclohexane ring, cyclopentene ring, benzene ring, piperidine ring, morpholine ring, lactone ring, and lactam ring. -7-membered ring and condensed rings such as naphthalene ring, anthracene ring, fluorene ring, acenaphthene ring, indane ring and tetralin ring.
- the methylene group in the alkyl group and the arylalkyl group and the direct bond in the aryl group are an unsaturated bond, —O— or —S—.
- the position at which the halogen group is substituted and the position at which —O— or —S— is interrupted are arbitrary, and include those in which —O— or —S— is directly bonded to each ring.
- optical isomers may exist when n is not 0, but any isomer may be present, and the compounds shown in the following text are specific.
- the optical isomers are not limited.
- n a number from 0 to 10.
- x is 2, y is 0, Y is a phenyl group, k is 0, p is 1, r is 0, and n is 0.
- the method for producing the epoxy compound represented by the general formula (I) is not particularly limited. For example, paragraphs [0032] to [0042] of WO 2008/139924 (US2010 / 0015551A1 [0025] ] To [0034]).
- the energy beam sensitive cationic polymerization initiator used in the present invention is a compound capable of releasing a substance that initiates cationic polymerization by energy beam sensitive irradiation, more specifically, energy beam irradiation as described later.
- the energy ray-sensitive cationic polymerization initiator include compounds such as a double salt which is an onium salt that releases a Lewis acid by energy ray-sensitive irradiation, or a derivative thereof.
- a typical example of such a compound is a salt of a cation and an anion represented by the general formula [A] y + [B] y- .
- the cation [A] y + is preferably onium, and the structure can be represented by, for example, [(R) x Q] y + .
- R represents an organic group having 1 to 60 carbon atoms and may contain any number of atoms other than carbon atoms, and x represents an integer of 1 to 5.
- the x Rs are independent and may be the same or different. Further, at least one of x R is preferably an aromatic group.
- the anion [B] y ⁇ is preferably a halide complex, and the structure thereof can be represented by [LX s ] y ⁇ , for example.
- L represents a metal or metalloid which is a central atom of a halide complex, for example, B, P, As, Sb, Fe, Sn, Bi, Al, Ca, In, Ti, Zn , Sc, V, Cr, Mn, Co and the like.
- X represents a halogen atom, and s represents an integer of 3 to 7.
- anion [LX s ] y ⁇ constituting the onium salt represented by the above general formula examples include tetrafluoroborate (BF 4 ) ⁇ , hexafluorophosphate (PF 6 ) ⁇ , hexafluoroantimonate (SbF 6). ) -, hexafluoroarsenate (AsF 6) -, hexachloroantimonate (SbCl 6) -, and the like, preferably hexafluoroantimonate (SbF 6) - a.
- a structure represented by [LX s ⁇ 1 (OH)] y ⁇ can also be used.
- L, X, and s are the same as described above.
- Other anions that can be used include perchlorate ion (ClO 4 ) ⁇ , trifluoromethylsulfite ion (CF 3 SO 3 ) ⁇ , fluorosulfonate ion (FSO 3 ) ⁇ , and toluenesulfonate anion. And trinitrobenzenesulfonic acid anion.
- tetrakis (pentafluorophenyl) borate can also be used as the anion [B] y ⁇ .
- an aromatic onium salt among such onium salts.
- Onium salts Group VA aromatic onium salts described in JP-A-50-158698 (US 4069055 (A)), JP-A 56-8428, JP-A 56-149402, JP-A 57- Oxosulfoxonium salts described in Japanese Patent No. 192429 (US Pat. No. 4,387,216 (A)) and the like; Thiopyrylium salts described in the aromatic diazonium salt, U.S. Patent No. 4139655 specification described are preferred.
- aromatic onium salts the following general formula (III), (IV) or (V) is particularly preferable.
- R1 to R14 may be the same or different from each other, a hydrogen atom, a halogen atom, an oxygen atom, a hydrocarbon group that may contain a halogen atom, or an alkoxy group that may have a substituent
- Ar is one or more.
- a compound having a sulfonium cation represented by: a compound having a (tricumyl) iodonium cation; a compound having a bis (tertiarybutylphenyl) iodonium cation; Examples thereof include a compound having a phenylsulfonium cation.
- xylene-cyclopentadienyl iron (II) hexafluoroantimonate cumene-cyclopentadienyl iron (II) hexafluorophosphate
- xylene-cyclopentadienyl iron (II) -tris examples thereof include iron / allene complexes such as (trifluoromethylsulfonyl) methanide, aluminum complexes / photolytic silicon compound-based initiators, and the like.
- the energy ray sensitive cationic polymerization initiator can be used alone or in combination of two or more.
- a preferred use amount of the energy ray-sensitive cationic polymerization initiator is 0.05 to 20 parts by mass with respect to 100 parts by mass of the epoxy compound represented by the general formula (I).
- the amount used is less than 0.05 parts by mass, the curable resin composition may be insufficiently cured, may be distorted or uneven, or may be cracked during heating.
- the amount used exceeds 50 parts by mass, the content of the ionic substance in the adhesive layer formed by curing the curable resin composition is increased, the hygroscopicity of the cured product is increased, and the durability performance is increased. You may not get enough.
- a more preferable amount of the energy ray-sensitive cationic polymerization initiator is 0.5 to 15 parts by mass with respect to 100 parts by mass of the epoxy resin.
- the curable resin composition of the present invention includes a curing catalyst, a reactive and / or non-reactive diluent (plasticizer), a filler, a pigment, a silane coupling agent, and a surfactant as necessary.
- a curing catalyst a reactive and / or non-reactive diluent (plasticizer)
- a filler a pigment, a silane coupling agent, and a surfactant as necessary.
- Common additives may be contained, and resins may be used in combination.
- these optional additives are preferably 500 parts by mass or less in total with respect to 100 parts by mass of the epoxy compound represented by the general formula (I).
- a solvent may be used.
- the amount of the solvent used is such that the total content of the epoxy compound represented by the general formula (I) and the energy ray-sensitive cationic polymerization initiator in the curable resin composition of the present invention is preferably 5 to It may be 90% by mass, more preferably 10 to 50% by mass.
- the solvent include ketones such as methyl ethyl ketone, methyl amyl ketone, diethyl ketone, acetone, methyl isopropyl ketone, methyl isobutyl ketone, and cyclohexanone; ethyl ether, dioxane, tetrahydrofuran, 1,2-dimethoxyethane, 1 Ether solvents such as 1,2-diethoxyethane and dipropylene glycol dimethyl ether; ester solvents such as methyl acetate, ethyl acetate, acetic acid-n-propyl, isopropyl acetate, and n-butyl acetate; ethylene glycol monomethyl ether, ethylene glycol Cellosolve solvents such as monoethyl ether, propylene glycol monomethyl ether acetate; methanol, ethanol, iso- or n-propanol, iso- or n-butan
- the curable resin composition of the present invention can be cured into a dry-to-touch state or a solvent-insoluble state usually after 0.1 seconds to several minutes by irradiation with energy rays such as ultraviolet rays.
- energy rays such as ultraviolet rays.
- Any suitable energy ray may be used as long as it induces decomposition of the cationic polymerization initiator, but preferably an ultra-high, high, medium, low-pressure mercury lamp, xenon lamp, carbon arc lamp, metal halide lamp, fluorescent lamp, From 2000 angstroms obtained from tungsten lamp, excimer lamp, germicidal lamp, excimer laser, nitrogen laser, argon ion laser, helium cadmium laser, helium neon laser, krypton ion laser, various semiconductor lasers, YAG laser, light emitting diode, CRT light source, etc.
- High energy rays such as electromagnetic energy having a wavelength of 7000 angstroms, electron beams, X
- the curable resin composition of the present invention can be cured by heat treatment, but since a cured product with good quality is obtained, it is preferable to appropriately perform heat treatment before and after energy beam irradiation, in particular, combined use of energy beam irradiation treatment and heat treatment. .
- the curable resin composition of the present invention is also used as an ink, a protective film, a paint, a coating agent, an adhesive, an insulating material, a structural material, an optical disk, a sealing agent, and an optical modeling agent in addition to the optical components described below. be able to.
- the cured product of the present invention is obtained by irradiating the curable resin composition of the present invention with energy rays.
- the energy rays and the like used are as described above.
- the shape of the cured product of the present invention is not particularly limited, and examples thereof include a lens shape, a film shape, a prism shape, and a plate shape. Furthermore, the material may be coated or sealed by curing on other materials.
- the cured product of the present invention is useful for optical parts such as an optical lens, an optical film, a light guide plate, a waveguide, an optical element, and an optical connector.
- Examples 1-1 to 1-4 show production examples of the curable resin composition of the present invention
- Comparative Examples 1-1 to 1-3 show production examples of the comparative curable resin composition
- Examples 2-1 to 2-4 and Comparative Examples 2-1 and 2-2 show production examples of the cured product and the comparative cured product of the present invention
- Examples 3-1 to 3-4 and Comparative Example 3- 1 and 3-2 show evaluation examples of the cured product and comparative cured product of the present invention.
- Adeka Resin EP-4100E bisphenol A type epoxy resin diluent manufactured by ADEKA Corporation
- Adekaoptomer SP-170 sulfonium salt-based energy ray-sensitive cationic polymerization initiator manufactured by ADEKA Corp .: 4,4′-bis [bis (( ⁇ -hydroxyethoxy) phenyl) sulfonio] phenyl sulfide- Bis-hexafluoroantimonate
- Adekaoptomer SP-172 sulfone salt-based energy ray-sensitive cationic polymerization initiator manufactured by ADEKA Corporation: 4- (2-chloro-4-benzoylphenylthio) phenylbis (4-fluorophenyl) sulfonium Hexafluoroantimonate
- the curable resin compositions (Examples 1-1 to 1-4) containing the epoxy compound (epoxy compound No. 1 or No. 2) according to the present invention are conventional products. It was confirmed that the storage stability was excellent as compared with the curable resin composition (Comparative Examples 1-1 and 1-2) containing the epoxy compound (Comparative Epoxy Compound No. 1). In particular, when the content of the epoxy compound was increased, in the epoxy compound according to the present invention (epoxy compound No. 1), no precipitate was confirmed, whereas the storage stability of the composition was excellent (implemented) In Examples 1-1 and 1-2) and the conventional epoxy compound (Comparative Epoxy Compound No.
- Examples 2-1 to 2-4 and Comparative Examples 2-1 and 2-2 Cured Nos. 1-No. 4 and comparative cured product No. 2 and no. 3
- the curable resin composition and the comparative curable resin composition obtained in Examples 1-1 to 1-4 and Comparative Examples 1-2 and 1-3 were heated to 60 ° C., respectively, to release the mold. It applied to the glass substrate which gave. Laminated by sandwiching the other piece of glass with 1.00mm spacer, which after exposure to a 3000 mJ / cm 2 per glass sided high pressure mercury lamp (total 6000 mJ / cm 2), was cured by 2 hours at 0.99 ° C. . After cooling to room temperature, the cured product was peeled off from the glass and cured product No. 1-No. 4 and comparative cured product No. 2 and no. It was set to 3.
- Examples 3-1 to 3-4 and Comparative examples 3-1 and 3-2 1-No. 4 and comparative cured product No. 2 and no. 3. Evaluation of cured product Nos. Obtained in Examples 2-1 to 2-4 and Comparative Examples 2-1 and 2-2 1-No. 4 and comparative cured product No. 2 and no.
- the “refractive index”, “discoloration” and “transparency” of No. 3 were evaluated as follows. These results are shown in [Table 2] below.
- the cured product No. containing the epoxy compound (epoxy compound No. 1 or No. 2) according to the present invention was used.
- 1-No. No. 4 was excellent in all of refractive index, colorability, and transmittance (Examples 3-1 to 3-4).
- the curable resin composition characterized by containing the epoxy compound according to the present invention is excellent in handling properties and storage stability, has little coloring, and has a high refractive index with excellent permeability. Obviously, it is useful for optical material applications.
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Abstract
Description
このようなエポキシ化合物を改良したものとして、例えば、特許文献1及び2には、フルオレン骨格を有するエポキシ化合物が報告されている。しかし、これらの文献に記載の化合物は樹脂組成物において結晶析出による保存安定性、得られる硬化物の着色性に問題があった。
該アルキル基及びアリールアルキル基中のメチレン基並びに該アリール基中の直接結合は、不飽和結合、-O-又は-S-で中断されていてもよく、Xは、隣接するX同士で環を形成していてもよく、
kは0~4の数を表し、pは0~8の数を表し、rは0~4の数を表し、nは0~10を表し、xは0~4の数を表し、yは0~4の数を表し、xとyの数の合計は2~4であり、nが0でない時に存在する光学異性体は、どの異性体でもよい。)
上記一般式(I)中、xは2又は3であり、yは0であり、Xは炭素原子数1~10のアルキル基、炭素原子数6~20のアリール基又はX同士で形成した環が芳香環となる基であり、Y及びZは炭素原子数1~10のアルキル基又は炭素原子数6~20のアリール基であり、k、p、rは0~2である化合物、特にnは0~5である化合物;
下記一般式(II)で表わされる化合物;
上記一般式(I)又は(II)中、nが0である化合物、Yがフェニル基である化合物、kが0又は1であり、kが1の時、Xが炭素原子数1~10のアルキル基又は炭素原子数6~20のアリール基である化合物;
上記一般式(I)中、xは2であり、yは0であり、Yはフェニル基であり、kは0であり、pは1であり、rは0であり、nは0である化合物
本発明で用いられるエネルギー線感受性カチオン重合開始剤は、エネルギー線感受性照射、より具体的には後述するようなエネルギー線の照射によりカチオン重合を開始させる物質を放出することが可能な化合物である。
以下の(1-1)~(1-3)エポキシ化合物並びに(2)希釈剤を[表1]に従い80℃に加熱して溶解させた後、60℃まで降温し、(3-1)及び(3-2)エネルギー線感受性カチオン重合開始剤を加えて完全に溶解し、それぞれ硬化性樹脂組成物No.1~No.4及び比較硬化性樹脂組成物No.1~No.3とした。
(1-1)1,1-ビス(4-(2,3-エポキシプロピルオキシ)フェニル)-3-フェニルインダン(上記化合物No.40のn=0の場合に該当)、以下エポキシ化合物No.1とする。
(3-1)アデカオプトマーSP-170((株)ADEKA製スルホニウム塩系エネルギー線感受性カチオン重合開始剤:4,4’-ビス[ビス((β-ヒドロキシエトキシ)フェニル)スルホニオ]フェニルスルフィド-ビス-ヘキサフルオロアンチモネート)
得られた硬化性樹脂組成物を室温まで冷却し、析出物の有無について評価した。一週間放置しても析出物が確認されない場合は○、1週間放置すると析出物が確認されるが、1時間放置しても析出物が確認されない場合を△、1時間放置した時点で析出物が確認された場合は×とした。
得られた硬化性樹脂組成物及び比較硬化性樹脂組成物の40℃における粘度を東機産業(株)製粘度計TVE-20にて測定した。尚、比較硬化性樹脂組成物No.1については多量の析出物が確認され、保存安定性に問題が生じたため、測定を行わなかった。
特に、エポキシ化合物の含有量を増加させた場合、本発明に係るエポキシ化合物(エポキシ化合物No.1)では、析出物は確認されず、組成物の保存安定性が優れていたのに対し(実施例1-1及び1-2)、従来品のエポキシ化合物(比較エポキシ化合物No.1)では、析出物が確認され、組成物の保存安定性が劣っていた(比較例1-1及び1-2)。
また同質量部のエポキシ化合物を配合した場合、エポキシ化合物No.1を配合した硬化性樹脂組成物の粘度が特に低く、組成物のハンドリング性に優れていた(実施例1-2及び1-3)。
上記実施例1-1~1-4並びに比較例1-2及び1-3で得られた硬化性樹脂組成物及び比較硬化性樹脂組成物をそれぞれ60℃に加熱し、離形処理を施したガラス基板に塗布した。1.00mmのスペーサーと共にもう一枚のガラスで挟み込んで張り合わせ、これを高圧水銀灯でガラス片面につき3000mJ/cm2(計6000mJ/cm2)で露光後に、150℃で2時間処理して硬化させた。室温まで冷却後、ガラスから硬化物を剥離させ硬化物No.1~No.4並びに比較硬化物No.2及びNo.3とした。
実施例2-1~2-4並びに比較例2-1及び2-2で得られた硬化物No.1~No.4並びに比較硬化物No.2及びNo.3の「屈折率」、「変色性」及び「透明性」について以下のように評価した。これらの結果を下記[表2]に示す。
アタゴ(株)製アッベ屈折計DR-M2にて、得られた硬化物の25℃におけるd線、e線の屈折率nd、neの測定を行った。
日本電色工業(株)製分光色差計SE6000にて、得られた硬化物の黄色度:YI(ASTM E313)の値を測定した。
日本電色工業(株)製ヘーズメーターNDH5000にて、得られた硬化物の全光線透過率を測定した。
これに対して、硬化性の成分が希釈剤のみである比較硬化物No.3は屈折率が十分ではなく、大きく着色し、透過率も十分ではなかった(比較例3-2)。また、従来品のエポキシ化合物(比較エポキシ化合物No.1)を配合した比較硬化物No.2については高い屈折率を与えるものの、着色及び透過率共に十分ではなかった(比較例3-1)。
Claims (7)
- 下記一般式(I)で表されるエポキシ化合物とエネルギー線感受性カチオン重合開始剤とを含有する硬化性樹脂組成物。
(式中、X、Y及びZは、それぞれ独立して、ハロゲン原子で置換されていてもよい炭素原子数1~10のアルキル基、ハロゲン原子で置換されていてもよい炭素原子数6~20のアリール基、ハロゲン原子で置換されていてもよい炭素原子数6~20のアリールオキシ基、ハロゲン原子で置換されていてもよい炭素原子数6~20のアリールチオ基、ハロゲン原子で置換されていてもよい炭素原子数8~20のアリールアルケニル基、ハロゲン原子で置換されていてもよい炭素原子数7~20のアリールアルキル基、ハロゲン原子で置換されていてもよい炭素原子数2~20の複素環基又はハロゲン原子を表し、
該アルキル基及びアリールアルキル基中のメチレン基並びに該アリール基中の直接結合は、不飽和結合、-O-又は-S-で中断されていてもよく、Xは、隣接するX同士で環を形成していてもよく、
kは0~4の数を表し、pは0~8の数を表し、rは0~4の数を表し、nは0~10を表し、xは0~4の数を表し、yは0~4の数を表し、xとyの数の合計は2~4であり、nが0でない時に存在する光学異性体は、どの異性体でもよい。) - 上記一般式(I)中、xは2又は3であり、yは0であり、Xは炭素原子数1~10のアルキル基、炭素原子数6~20のアリール基又は隣接するX同士で形成した環となる基であり、Y及びZは炭素原子数1~10のアルキル基又は炭素原子数6~20のアリール基であり、k、p及びrはそれぞれ独立して0~2である請求項1に記載の硬化性樹脂組成物。
- 上記一般式(I)中、nが0である請求項1~3の何れかに記載の硬化性樹脂組成物。
- 上記一般式(I)又は上記一般式(II)中、Yがフェニル基である請求項1~4の何れかに記載の硬化性樹脂組成物。
- 上記一般式(I)又は上記一般式(II)中、kが0又は1であり、kが1の時、Xが炭素原子数1~10のアルキル基又は炭素原子数6~20のアリール基である請求項1~5の何れかに記載の硬化性樹脂組成物。
- 請求項1~6の何れかに記載の硬化性樹脂組成物にエネルギー線を照射して得られる硬化物。
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| JP2012241083A (ja) * | 2011-05-18 | 2012-12-10 | Adeka Corp | エポキシ化合物、及びこれを含有する重合性組成物 |
| WO2017163907A1 (ja) * | 2016-03-24 | 2017-09-28 | 凸版印刷株式会社 | フィルム及び画像表示装置 |
| JP2019172643A (ja) * | 2018-03-29 | 2019-10-10 | クミアイ化学工業株式会社 | 新規化合物及び該化合物の製造方法 |
| JPWO2023063221A1 (ja) * | 2021-10-12 | 2023-04-20 |
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| CN104918914A (zh) * | 2012-10-18 | 2015-09-16 | 三亚普罗股份有限公司 | 锍盐、光产酸剂、固化性组合物和抗蚀剂组合物 |
| JP6071533B2 (ja) * | 2012-12-25 | 2017-02-01 | 株式会社Adeka | 光硬化性組成物 |
| JP2016115779A (ja) * | 2014-12-13 | 2016-06-23 | 株式会社ダイセル | ナノインプリント用光硬化性組成物 |
| WO2016136715A1 (ja) * | 2015-02-24 | 2016-09-01 | 積水化学工業株式会社 | 有機エレクトロルミネッセンス表示素子用封止剤 |
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| WO2007049665A1 (ja) * | 2005-10-27 | 2007-05-03 | Toppan Printing Co., Ltd. | アルカリ現像型感光性樹脂組成物、それを用いて形成した液晶分割配向制御用突起付き基板、及び液晶表示装置 |
| WO2008139924A1 (ja) * | 2007-05-09 | 2008-11-20 | Adeka Corporation | 新規エポキシ化合物、アルカリ現像性樹脂組成物およびアルカリ現像性感光性樹脂組成物 |
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| WO2007049665A1 (ja) * | 2005-10-27 | 2007-05-03 | Toppan Printing Co., Ltd. | アルカリ現像型感光性樹脂組成物、それを用いて形成した液晶分割配向制御用突起付き基板、及び液晶表示装置 |
| WO2008139924A1 (ja) * | 2007-05-09 | 2008-11-20 | Adeka Corporation | 新規エポキシ化合物、アルカリ現像性樹脂組成物およびアルカリ現像性感光性樹脂組成物 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2012241083A (ja) * | 2011-05-18 | 2012-12-10 | Adeka Corp | エポキシ化合物、及びこれを含有する重合性組成物 |
| WO2017163907A1 (ja) * | 2016-03-24 | 2017-09-28 | 凸版印刷株式会社 | フィルム及び画像表示装置 |
| JP2017171807A (ja) * | 2016-03-24 | 2017-09-28 | 凸版印刷株式会社 | フィルム及び画像表示装置 |
| JP2019172643A (ja) * | 2018-03-29 | 2019-10-10 | クミアイ化学工業株式会社 | 新規化合物及び該化合物の製造方法 |
| JP7012578B2 (ja) | 2018-03-29 | 2022-02-14 | クミアイ化学工業株式会社 | 新規化合物及び該化合物の製造方法 |
| JPWO2023063221A1 (ja) * | 2021-10-12 | 2023-04-20 | ||
| WO2023063221A1 (ja) * | 2021-10-12 | 2023-04-20 | フクビ化学工業株式会社 | 光学部材 |
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| KR101737458B1 (ko) | 2017-05-18 |
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