WO2009154055A1 - アゾ化合物及びその塩、並びにそれらを含有する染料系偏光膜並びに偏光板 - Google Patents
アゾ化合物及びその塩、並びにそれらを含有する染料系偏光膜並びに偏光板 Download PDFInfo
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- WO2009154055A1 WO2009154055A1 PCT/JP2009/059172 JP2009059172W WO2009154055A1 WO 2009154055 A1 WO2009154055 A1 WO 2009154055A1 JP 2009059172 W JP2009059172 W JP 2009059172W WO 2009154055 A1 WO2009154055 A1 WO 2009154055A1
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- group
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- dye
- azo compound
- salt
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- NUCDSQJYPVQMMF-UHFFFAOYSA-N C[n]1nc2c(cccc3)c3ccc2n1 Chemical compound C[n]1nc2c(cccc3)c3ccc2n1 NUCDSQJYPVQMMF-UHFFFAOYSA-N 0.000 description 2
- NCCHARWOCKOHIH-UHFFFAOYSA-N CNC(c1ccccc1)=O Chemical compound CNC(c1ccccc1)=O NCCHARWOCKOHIH-UHFFFAOYSA-N 0.000 description 1
- WDUXSKVYOYAJTL-RLJHARLASA-N Cc1cc(/N=N/c(c(C)c2)cc(C)c2/N=N\c(c(O)c(ccc(Nc(cc2)ccc2OC)c2)c2c2)c2S(O)(=O)=O)c(C)cc1/N=N\c(cc1)cc(c(S(O)(=O)=O)c2)c1cc2OCCCS(O)(=O)=O Chemical compound Cc1cc(/N=N/c(c(C)c2)cc(C)c2/N=N\c(c(O)c(ccc(Nc(cc2)ccc2OC)c2)c2c2)c2S(O)(=O)=O)c(C)cc1/N=N\c(cc1)cc(c(S(O)(=O)=O)c2)c1cc2OCCCS(O)(=O)=O WDUXSKVYOYAJTL-RLJHARLASA-N 0.000 description 1
- JBIJLHTVPXGSAM-UHFFFAOYSA-N Nc1cc2ccccc2cc1 Chemical compound Nc1cc2ccccc2cc1 JBIJLHTVPXGSAM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/16—Trisazo dyes
- C09B31/22—Trisazo dyes from a coupling component "D" containing directive hydroxyl and amino groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0014—Monoazo dyes prepared by diazotising and coupling from diazotized aminonaphthalene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
- C09B29/0805—Amino benzenes free of acid groups
- C09B29/0807—Amino benzenes free of acid groups characterised by the amino group
- C09B29/0808—Amino benzenes free of acid groups characterised by the amino group unsubstituted amino group
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/04—Disazo dyes from a coupling component "C" containing a directive amino group
- C09B31/043—Amino-benzenes
- C09B31/047—Amino-benzenes containing acid groups, e.g. —CO2H, —SO3H, —PO3H2, —OSO3H, —OPO2H2; Salts thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group
- C09B31/068—Naphthols
- C09B31/072—Naphthols containing acid groups, e.g. —CO2H, —SO3H, —PO3H2, —OSO3H, —OPO2H2; Salts thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/08—Disazo dyes from a coupling component "C" containing directive hydroxyl and amino groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/16—Trisazo dyes
- C09B31/20—Trisazo dyes from a coupling component"D" containing a directive hydroxyl group
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/30—Other polyazo dyes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
Definitions
- the present invention relates to a novel azo compound and a salt thereof, a dye-based polarizing film containing the same, and a polarizing plate.
- polarizing films are made of stretched and oriented polyvinyl alcohol or derivatives thereof, or polarizing film substrates such as polyene films formed by orienting polyene by dehydrochlorination of polyvinyl chloride films or dehydration of polyvinyl alcohol films.
- iodine or dichroic dye is contained as a polarizing element.
- an iodine-based polarizing film using iodine as a polarizing element is excellent in polarization performance, but is weak against water and heat, and is durable when used for a long time at high temperature and high humidity. There's a problem.
- a neutral color polarizing film formed by adsorbing and orienting several dichroic dyes on a polymer film the two polarizing films are stacked so that their orientation directions are orthogonal (orthogonal position). If there is light leakage (color leakage) of a specific wavelength in the visible light wavelength region, the hue of the liquid crystal display may change in the dark state when the polarizing film is attached to the liquid crystal panel. Therefore, when a polarizing film is mounted on a liquid crystal display device, several dichroic dyes are adsorbed and oriented on the polymer film to prevent discoloration of the liquid crystal display due to color leakage at a specific wavelength in the dark state.
- the transmittance in the orthogonal position (orthogonal transmittance) in the wavelength region of the visible light region must be uniformly reduced.
- a polarizing plate is used for the liquid crystal image forming portion.
- an iodine type polarizing plate having good polarization performance and neutral gray was used.
- the iodine-based polarizing plate has a problem that light resistance, heat resistance, and moist heat resistance are not sufficient because iodine is a polarizer as described above.
- a neutral gray polarizing plate using a dye-based dichroic dye as a polarizer has been used.
- a neutral gray polarizing plate is used for transmission in the entire visible wavelength range.
- Examples of the dye used in the production of the dye-based polarizing film as described above include water-soluble azo compounds described in Patent Document 1 to Patent Document 5, for example.
- the conventional polarizing plate containing the water-soluble dye has not sufficiently satisfied the market needs from the viewpoints of polarization characteristics, absorption wavelength region, hue, and the like.
- it corresponds to the three primary colors of color liquid crystal projectors, that is, three polarizing plates for blue channel, green channel and red channel, brightness and polarization performance, durability under high temperature and high humidity conditions, and long exposure There is no good light resistance to the light, and improvement thereof is desired.
- One of the objects of the present invention is to provide a high-performance polarizing plate having excellent polarization performance and moisture resistance, heat resistance, and light resistance. Furthermore, another object of the present invention is a neutral color polarizing plate in which two or more kinds of dichroic dyes are adsorbed and oriented on a polymer film, and the orthogonal color in the wavelength region of the visible light region is also obtained.
- the object of the present invention is to provide a high-performance polarizing plate having excellent polarization performance and moisture resistance, heat resistance and light resistance.
- a further object is to provide a high-performance polarizing plate corresponding to the three primary colors of a color liquid crystal projector and having good brightness, polarization performance, durability and light resistance.
- a polarizing film and a polarizing plate containing a specific azo compound and / or a salt thereof have excellent polarizing performance, moisture resistance, heat resistance, and light resistance. As a result, the present invention was completed.
- the present invention provides (1) Formula (1) (Wherein R 1 represents a lower alkoxyl group having a sulfone group, R 2 to R 5 each independently represents a hydrogen atom, a lower alkyl group or a lower alkoxyl group, and X may have a substituent.
- the polarizing film containing the azo compound or a salt thereof of the present invention has a polarizing performance comparable to that of a polarizing film using iodine, and also has excellent light resistance, so that it can be used for various liquid crystal displays and liquid crystal projectors. It is suitable for in-vehicle applications that require polarization performance and durability, and display applications for industrial instruments used in various environments.
- R 1 represents a lower alkoxyl group having a sulfone group (preferably an alkoxyl group having 1 to 5 carbon atoms; the same applies to the following “lower alkoxyl group”)
- R 2 to R 5 are each independently ,
- X is an amino group which may have a substituent
- a benzoylamino group which may have a group, a phenylamino group which may have a substituent, a phenylazo group which may have a substituent or a naphthotriazole group which may have a substituent, 1 or 2
- n represents 0 or 1.
- R 1 represents a lower alkoxyl group having a sulfone group, but the alkyl chain is preferably linear and particularly preferably a propoxy group or a butoxy group.
- the R 2 ⁇ R 5 are each independently a hydrogen atom, a lower alkyl group, a lower alkoxyl group, a hydrogen atom, a methyl group or a methoxy group.
- X is an amino group which may have a substituent, a benzoylamino group which may have a substituent, a phenylamino group which may have a substituent, a phenylazo group which may have a substituent, or a substituent
- X represents a benzoylamino group which may have a substituent, a phenylamino group which may have a substituent or a phenylazo group which may have a substituent
- these substituents are preferably a hydrogen atom, a lower alkyl group, a lower alkoxyl group, a hydroxyl group, a carboxyl group, a sulfone group, an amino group or a substituted amino group
- X may be a naphtho having a substituent.
- X is a phenylazo group having a substituent
- the substituent is preferably a hydrogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxyl group, an amino group or a substituted amino group, and particularly preferably a hydroxyl group.
- azo compound represented by the formula (1) used in the present invention will be given below.
- the sulfone group, carboxyl group and hydroxyl group in the formula are represented in the form of free acid.
- the azo compound represented by the formula (1) or a salt thereof can be easily produced by performing known diazotization and coupling in accordance with a conventional azo dye production method as described in Non-Patent Document 1.
- a specific production method naphthylamine sulfonic acids represented by the following formula (A) obtained by alkyl sulfonation of naphthylamine sulfonic acids by the production method shown in Patent Document 6, pp35 are diazotized, and an aniline of the following formula (B) And a monoazoamino compound represented by the following formula (C).
- R 1 and m represent the same meaning as R 1 and m in the formula (1), respectively).
- R 2 and R 3 represent the same meaning as R 2 and R 3 in formula (1), respectively).
- R 4 and R 5 represent the same meaning as R 4 and R 5 in formula (1), respectively).
- R 1 , R 2 , R 3 , R 4 , R 5 and m have the same meaning as R 1 , R 2 , R 3 R 4 , R 5 and m in formula (1), respectively).
- the substituent in the anilines which may have a substituent (R 2 to R 5 ) which is a primary and secondary coupling component is a hydrogen atom, a lower alkyl group or a lower alkoxyl group, A methyl group or a methoxy group is more preferable. One or two of these substituents may be bonded.
- anilines include aniline, 2-methylaniline, 3-methylaniline, 2-ethylaniline, 3-ethylaniline, 2,5-dimethylaniline, 2,5-diethylaniline, 2-methoxyaniline, and 3-methoxy.
- anilines examples thereof include aniline, 2-methoxy-5-methylaniline, 2,5-dimethoxyaniline, 3,5-dimethylaniline, 2,6-dimethylaniline, and 3,5-dimethoxyaniline.
- anilines may have an amino group protected.
- An example of the protecting group is its ⁇ -methanesulfonic acid group.
- the anilines used for the primary coupling and the anilines used for the secondary coupling may be the same or different.
- phenylamino group 4-methylphenylamino group, 4-methoxyphenylamino group, 4-aminophenylamino group, 4-amino-2-sulfophenylamino group, 4-amino-3-sulfophenylamino group, 4 A sulfomethylaminophenylamino group or a 4-carboxyethylaminophenylamino group;
- a phenylazo group having a substituent (R 9 to R 11 ) represented by the formula (5) is preferable.
- Each of the substituents (R 9 to R 11 ) independently represents a hydrogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxyl group, an amino group, or a substituted amino group, but is preferably monosubstituted. Is more preferably a hydroxyl group, an amino group, or a substituted amino group.
- the dye-based polarizing film or the dye-based polarizing plate of the present invention may be used alone or in combination with a plurality of azo compounds represented by the formula (1) or other organic dyes as necessary. You may use together 1 or more types.
- the organic dye to be combined is not particularly limited, but is preferably a dye having absorption characteristics in a wavelength region different from the absorption wavelength region of the azo compound or a salt thereof of the present invention and having high dichroism. For example, Sea. Ai. direct. Yellow 12, sea. Ai. direct. Yellow 28, Sea. Ai. direct. Yellow 44, Sea. Ai. direct. Orange 26, Sea. Ai. direct. Orange 39, sea. Ai. direct. Orange 71, Sea. Ai. direct. Orange 107, sea.
- a method of dyeing the polymer film is usually employed.
- the staining is performed as follows. First, a dye bath is prepared by dissolving the azo compound of the present invention and / or a salt thereof and, if necessary, other dyes in water.
- the dye concentration in the dye bath is not particularly limited, but is usually selected from the range of about 0.001 to 10% by weight. If necessary, a dyeing assistant may be used. For example, it is preferable to use sodium sulfate at a concentration of about 0.1 to 10% by weight.
- Dyeing is performed by immersing the polymer film in the dyeing bath thus prepared for 1 to 10 minutes.
- the dyeing temperature is preferably about 40 to 80 ° C.
- the single plate average light transmittance in the necessary wavelength region of the polarizing plate is 42% or more, and the average light transmittance in the orthogonal position is 0.1% or less.
- the color polarizing plate for a liquid crystal projector of the present invention has brightness and excellent polarization performance as described above.
- the single plate average light transmittance is that natural light is incident on a single polarizing plate (hereinafter simply referred to as a polarizing plate) having no support such as an AR layer and a transparent glass plate. It is the average value of the light transmittance in the specific wavelength region.
- the average light transmittance in the orthogonal position is an average value of the light transmittance in a specific wavelength region when natural light is incident on two polarizing plates whose orientation directions are orthogonal.
- the color polarizing plate for a liquid crystal projector of the present invention is usually used as a polarizing plate with a support.
- the support preferably has a flat portion, and since it is used for optical purposes, a glass molded product is preferable.
- the glass molded product include a glass plate, a lens, and a prism (for example, a triangular prism and a cubic prism).
- a lens attached with a polarizing plate can be used as a condenser lens with a polarizing plate in a liquid crystal projector.
- a prism with a polarizing plate attached thereto can be used as a polarizing beam splitter with a polarizing plate or a dichroic prism with a polarizing plate in a liquid crystal projector.
- the glass material include inorganic glass such as soda glass, borosilicate glass, and sapphire glass, and organic glass such as acrylic and polycarbonate. Inorganic glass is preferable.
- the glass plate may have a desired thickness and size. In order to further improve the single plate light transmittance, it is preferable to provide an AR layer on one or both of the glass surface and the polarizing plate surface of the polarizing plate with glass.
- the dye-based polarizing plate of the present invention is disposed on one or both of the incident side and the outgoing side of the liquid crystal cell.
- the polarizing plate may or may not be in contact with the liquid crystal cell, but is preferably not in contact from the viewpoint of durability.
- the dye-based polarizing plate of the present invention using the liquid crystal cell as a support can be used.
- the polarizing plate is not in contact with the liquid crystal cell, it is preferable to use the dye-based polarizing plate of the present invention using a support other than the liquid crystal cell.
- the dye-based polarizing plate of the present invention is preferably disposed on either the incident side or the exit side of the liquid crystal cell. It is preferable to arrange the support surface on the light source side on the cell side.
- the incident side of the liquid crystal cell is the light source side, and the opposite side is referred to as the emission side.
- the precipitated monoazo compound was filtered to obtain 37.2 parts of a compound of the following formula (27).
- the obtained monoazo compound was diazotized, coupled and crystallized in the same manner as in Example 1 to obtain 46.0 parts of a disazo compound represented by the formula (7).
- the maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 550 nm.
- Example 6 The trisazo represented by the above formula (11) in the same manner as in Example 4 except that the primary coupler of the above formula (10) was changed from 12.1 parts of 2,5-dimethylaniline to 10.7 parts of 3-methylaniline. 35 parts of compound were obtained. The maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 577 nm.
- Example 7 The primary and secondary couplers of the formula (10) were changed in the same manner as in Example 4 except that 12.1 parts of 2,5-dimethylaniline was changed to 13.7 parts of 2-methoxy-5-methylaniline. 42 parts of a trisazo compound represented by the formula (12) were obtained. The maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 603 nm.
- Example 10 27.5 parts of 6- (4′-methoxyphenyl) amino-1-naphthol-3-sulfonic acid of the formula (10) is converted to 6- (4′-hydroxyphenylazo) -3-sulfo-1-naphthol. Except changing to 8 parts, it carried out similarly to Example 4, and obtained 37 parts of trisazo compounds shown by said Formula (15). The maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 576 nm.
- Example 12 76.1-amino-3- (3-sulfopropoxy) naphthalene-1-sulfonic acid 36.1 parts of the starting material of formula (7) is converted to 6-amino-4- (3-sulfopropoxy) naphthalene-2-sulfonic acid.
- 31.0 parts of 6- (4′-methoxyphenyl) amino-1-naphthol-3-sulfonic acid was changed to 44.1 parts of naphthols represented by the following formula (28) in 36.1 parts.
- 48 parts of the disazo compound represented by the formula (17) was obtained.
- the maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 541 nm.
- Example 13 76.1-amino-3- (3-sulfopropoxy) naphthalene-1-sulfonic acid 36.1 parts of the starting material of formula (9) is converted to 7-amino-4- (3-sulfopropoxy) naphthalene-2-sulfonic acid. 40 parts of the trisazo compound represented by the formula (18) was obtained in the same manner as in Example 4 except that the amount was changed to 36.1 parts. The maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 575 nm.
- Example 14 In the same manner as in Example 4 except that the primary and secondary couplers of the formula (18) are changed from 12.1 parts of 2,5-dimethylaniline to 10.7 parts of 3-methylaniline, respectively, the formula (19) 35 parts of the indicated trisazo compound were obtained.
- the maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 564 nm.
- Example 15 27.5 parts of 6- (4′-methoxyphenylamino) -1-naphthol-3-sulfonic acid of the formula (18) are converted to 6- (4′-aminobenzoyl) amino-1-naphthol-3-sulfonic acid 28. Except for changing to 7 parts, 32 parts of the disazo compound represented by the formula (20) was obtained in the same manner as in Example 4. The maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 546 nm.
- Example 16 The starting material of formula (9), 76.1-amino-3- (3-sulfopropoxy) naphthalene-1-sulfonic acid, 36.1 parts, was converted to 2-amino-5- (3-sulfopropoxy) naphthalene-1,7- 38 parts of a trisazo compound represented by the formula (21) was obtained in the same manner as in Example 4 except that the amount was changed to 44.1 parts of disulfonic acid. The maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 572 nm.
- Example 18 The starting material of formula (9), 76.1-amino-3- (3-sulfopropoxy) naphthalene-1-sulfonic acid, 36.1 parts, was converted to 3-amino-7- (3-sulfopropoxy) naphthalene-1,5- 38 parts of a trisazo compound represented by the above formula (23) was obtained in the same manner as in Example 4 except that the amount was changed to 44.1 parts of disulfonic acid. The maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 576 nm.
- Example 19 27.5 parts of 6- (4′-methoxyphenylamino) -1-naphthol-3-sulfonic acid of the formula (10) is converted to 6- (4′-amino-3′-sulfophenylamino) -1-naphthol- 42 parts of a trisazo compound represented by the above formula (24) was obtained in the same manner as in Example 4 except that the amount was changed to 32.8 parts of 3-sulfonic acid. The maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 579 nm.
- Example 20 27.5 parts of 6- (4′-methoxyphenylamino) -1-naphthol-3-sulfonic acid of the formula (18) is converted to 6- (4′-amino-3′-sulfophenylamino) -1-naphthol- 38 parts of a trisazo compound represented by the above formula (25) was obtained in the same manner as in Example 4 except that the amount was changed to 32.8 parts of 3-sulfonic acid. The maximum absorption wavelength of this compound in a 20% aqueous pyridine solution was 578 nm.
- Comparative Example 1 Instead of the compound of Example 1, a polarizing film prepared in the same manner as in Patent Document 5 and Example 13 was laminated in the same manner as in Example 33. Irradiated with an accelerated xenon arc tester (manufactured by Suga Seiki Co., Ltd .; SX-75) with 173 h light, the change in the degree of polarization before and after light irradiation was 6.4%, respectively, which was 1/3 or less of the durability of the example compounds It was sex.
- an accelerated xenon arc tester manufactured by Suga Seiki Co., Ltd .; SX-75
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Abstract
Description
さらなる目的はカラー液晶プロジェクターの3原色に対応した、明るさと偏光性能、耐久性及び耐光性のいずれもが良好である高性能な偏光板を提供することにある。
(式中、R1はスルホン基を有する低級アルコキシル基を示し、R2~R5は各々独立に、水素原子、低級アルキル基又は低級アルコキシル基を示し、Xは置換基を有してもよいアミノ基、置換基を有してもよいベンゾイルアミノ基、置換基を有してもよいフェニルアミノ基、置換基を有してもよいフェニルアゾ基又は置換基を有してもよいナフトトリアゾール基であり、mは1又は2を示し、nは0又は1を示す。)
で示されるアゾ化合物及びその塩、
(2)Xが置換基を有してもよいベンゾイルアミノ基、置換基を有してもよいフェニルアミノ基、置換基を有してもよいフェニルアゾ基又は置換基を有してもよいナフトトリアゾール基であって、これらの置換基は水素原子、低級アルキル基、低級アルコキシル基、ヒドロキシル基、カルボキシル基、スルホン基、アミノ基又は置換アミノ基である、(1)に記載のアゾ化合物及びその塩、
(3)Xが式(2)
(式中、R6及びR7は各々独立に水素原子、メチル基、メトキシ基、スルホン基、アミノ基又は置換アミノ基のいずれかを示す。)
で示されるフェニルアミノ基である、(1)又は(2)に記載のアゾ化合物及びその塩、
(4)Xが式(3)
(式中、R8は水素原子、ヒドロキシル基、アミノ基又は置換アミノ基を示す。)
で示されるベンゾイルアミノ基である、(1)又は(2)に記載のアゾ化合物及びその塩、
(5)Xが式(4)
(式中、lは1又は2を示す。)
で示されるナフトトリアゾール基である、(1)又は(2)に記載のアゾ化合物及びその塩、
(6)Xが式(5)
(式中、R9~R11が各々独立に水素原子、ヒドロキシル基、低級アルキル基、低級アルコキシル基、アミノ基又は置換アミノ基のいずれかを示す。)
で示されるフェニルアゾ基である、(1)又は(2)に記載のアゾ化合物及びその塩、
(7)R1がスルホン基を有する直鎖低級アルコキシル基である、(1)~(6)のいずれかに記載のアゾ化合物及びその塩、
(8)R1がスルホプロポキシル基である、(1)~(6)のいずれかに記載のアゾ化合物及びその塩、
(9)R2~R5が各々独立に水素原子、メチル基又はメトキシ基である、(1)~(8)のいずれかに記載のアゾ化合物及びその塩、
(10)(1)~(9)のいずれかに記載のアゾ化合物及び/又はその塩を含有する偏光膜基材を含む、染料系偏光膜、
(11)(1)~(9)のいずれかに記載のアゾ化合物及び/又はその塩、並びにこれら以外の有機染料を1種類以上を含有する偏光膜基材を含む、染料系偏光膜、
(12)(1)~(9)のいずれかに記載のアゾ化合物及び/又はその塩を2種類以上、並びにこれら以外の有機染料を1種類以上を含有する偏光膜基材を含む、染料系偏光膜、
(13)偏光膜基材がポリビニルアルコール樹脂又はその誘導体からなるフィルムである、(10)~(12)のいずれかに記載の染料系偏光膜、
(14)(10)~(12)のいずれかに記載の染料系偏光膜の少なくとも一方の面に透明保護層を貼合して得られうる、染料系偏光板、
(15)(10)~(14)のいずれかに記載の染料系偏光膜又は染料系偏光板を用いる、液晶表示用偏光板、
(16)(10)~(14)のいずれかに記載の染料系偏光膜又は染料系偏光板を用いる、液晶プロジェクター用カラー偏光板、
(17)(14)~(16)のいずれかに記載の染料系偏光板を用いる、液晶表示装置、に関する。
偏光膜と保護膜を貼り合わせるのに用いうる接着剤としては、ポリビニルアルコール系接着剤、ウレタンエマルジョン系接着剤、アクリル系接着剤、ポリエステルーイソシアネート系接着剤などが挙げられ、ポリビニルアルコール系接着剤が好適である。
7-アミノ-3-(3-スルホプロポキシ)ナフタレン-1-スルホン酸36.1部を水500部に加え、水酸化ナトリウムで溶解し、冷却し10℃以下で、35%塩酸32部を加え、次に亜硝酸ナトリウム6.9部を加え、5~10℃で1時間攪拌した。そこへ希塩酸水に溶解した2,5-ジメチルアニリン12.1部を加え、10~30℃で攪拌しながら、炭酸ナトリウムを加えてpH3とし、さらに攪拌してカップリング反応を完結させ、濾過して、下記式(26)で示されるモノアゾ化合物を44.3部得た。
得られたモノアゾ化合物に35%塩酸32部を、次に亜硝酸ナトリウム6.9部を加え、25~30℃で2時間攪拌し、ジアゾ化する。一方、6-(4’-メトキシフェニル)アミノ-1-ナフトール-3-スルホン酸31.0部を水200部に加え、炭酸ナトリウムで弱アルカリ性として溶解し、この液に先に得られたモノアゾ化合物のジアゾ化物をpH8~10を保って注入し、攪拌して、カップリング反応を完結させる。塩化ナトリウムで塩析し、濾過して前記式(6)で示されるジスアゾ化合物58.5部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は565nmであった。
7-アミノ-3-(3-スルホプロポキシ)ナフタレン-1-スルホン酸36.1部を水500部に加え、水酸化ナトリウムで溶解し、冷却し10℃以下で、35%塩酸32部を加え、次に亜硝酸ナトリウム6.9部を加え、5~10℃で1時間攪拌した。そこへ水に溶解したアニリノメタンスルホン酸ナトリウム20.9部を加え、10~30℃で攪拌しながら、炭酸ナトリウムを加えてpH3とし、さらに攪拌してカップリング反応を完結させたのち、水酸化ナトリウムを加え、80℃で加水分解した後、析出したモノアゾ化合物を濾過して、下記式(27)の化合物37.2部を得た。
得られたモノアゾ化合物を実施例1と同様にジアゾ化、カップリング、晶析して前記式(7)で示されるジスアゾ化合物46.0部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は550nmであった。
6-(4’-メトキシフェニル)アミノ-1-ナフトール-3-スルホン酸31.0部を水200部に加え、炭酸ナトリウムで弱アルカリ性とした液に、前記式(27)のモノアゾ化合物を実施例2と同様にジアゾ化物をpH8~10を保って注入し、攪拌してカップリング反応を完結させる。この液から塩化ナトリウムで塩析し、濾過して前記式(8)の化合物40部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は534nmであった。
前記式(26)のモノアゾ化合物に35%塩酸32部を、次に亜硝酸ナトリウム6.9部を加え、25~30℃で2時間攪拌した。そこへ希塩酸水に溶解した2,5-ジメチルアニリン12.1部を加え、20~30℃で攪拌しながら、炭酸ナトリウムを加えてpH3とし、さらに攪拌してカップリング反応を完結させ、濾過して、下記式(28)で示されるジスアゾ化合物を得た。
得られたジスアゾ化合物に35%塩酸32部を、次に亜硝酸ナトリウム6.9部を加え、25~30℃で2時間攪拌し、ジアゾ化する。一方、6-(4’-メトキシフェニル)アミノ-1-ナフトール-3-スルホン酸27.5部を水200部に加え、炭酸ナトリウムで弱アルカリ性として溶解し、この液に先に得られたジスアゾ化合物のジアゾ化物をpH8~10を保って注入し、攪拌して、カップリング反応を完結させる。塩化ナトリウムで塩析し、濾過して前記式(9)で示されるトリスアゾ化合物40部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は576nmであった。
前記式(9)の出発原料の7-アミノ-3-(3-スルホプロポキシ)ナフタレン-1-スルホン酸36.1部を6-アミノ-4-(3-スルホプロポキシ)ナフタレン-2-スルホン酸36.1部に変更する以外は実施例4と同様にして前記式(10)で示されるトリスアゾ化合物40部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は576nmであった。
前記式(10)の1次カップラーを2,5-ジメチルアニリン12.1部から3-メチルアニリン10.7部に変更する以外は実施例4と同様にして前記式(11)で示されるトリスアゾ化合物35部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は577nmであった。
前記式(10)の1次、2次カップラーを各々2,5-ジメチルアニリン12.1部から2-メトキシ-5-メチルアニリン13.7部に変更する以外は実施例4と同様にして前記式(12)で示されるトリスアゾ化合物42部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は603nmであった。
前記式(12)の2次カップラーを2-メトキシ-5-メチルアニリン13.7部から2,5-ジメトキシアニリン15.3部に変更する以外は実施例4と同様にして前記式(13)で示されるトリスアゾ化合物36部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は622nmであった。
前記式(10)の6-(4’-メトキシフェニル)アミノ-1-ナフトール-3-スルホン酸27.5部を6-フェニルアミノ-1-ナフトール-3-スルホン酸25.1部に変更する以外は実施例4と同様にして前記式(14)で示されるトリスアゾ化合物37部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は573nmであった。
前記式(10)の6-(4’-メトキシフェニル)アミノ-1-ナフトール-3-スルホン酸27.5部を6-(4’-ヒドロキシフェニルアゾ)-3-スルホ-1-ナフトール34.8部に変更する以外は実施例4と同様にして前記式(15)で示されるトリスアゾ化合物37部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は576nmであった。
前記式(10)の6-(4’-メトキシフェニル)アミノ-1-ナフトール-3-スルホン酸27.5部を下記式(29)で示されるナフトール類36.3部に変更する以外は実施例4と同様にして前記式(16)で示されるトリスアゾ化合物40部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は543nmであった。
前記式(7)の出発原料の7-アミノ-3-(3-スルホプロポキシ)ナフタレン-1-スルホン酸36.1部を6-アミノ-4-(3-スルホプロポキシ)ナフタレン-2-スルホン酸36.1部に、6-(4’-メトキシフェニル)アミノ-1-ナフトール-3-スルホン酸31.0部を下記式(28)で示されるナフトール類44.1部に変更する以外は実施例2と同様にして前記式(17)で示されるジスアゾ化合物48部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は541nmであった。
前記式(9)の出発原料の7-アミノ-3-(3-スルホプロポキシ)ナフタレン-1-スルホン酸36.1部を7-アミノ-4-(3-スルホプロポキシ)ナフタレン-2-スルホン酸36.1部に変更する以外は実施例4と同様にして前記式(18)で示されるトリスアゾ化合物40部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は575nmであった。
前記式(18)の1次、2次カップラーを各々2,5-ジメチルアニリン12.1部から3-メチルアニリン10.7部に代える以外は実施例4と同様にして前記式(19)で示されるトリスアゾ化合物35部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は564nmであった。
前記式(18)の6-(4’-メトキシフェニルアミノ)-1-ナフトール-3-スルホン酸27.5部を6-(4’-アミノベンゾイル)アミノ-1-ナフトール-3-スルホン酸28.7部に代える以外は実施例4と同様にして前記式(20)で示されるジスアゾ化合物32部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は546nmであった。
前記式(9)の出発原料の7-アミノ-3-(3-スルホプロポキシ)ナフタレン-1-スルホン酸36.1部を2-アミノ-5-(3-スルホプロポキシ)ナフタレン-1,7-ジスルホン酸44.1部に変更する以外は実施例4と同様にして前記式(21)で示されるトリスアゾ化合物38部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は572nmであった。
前記式(9)の出発原料の7-アミノ-3-(3-スルホプロポキシ)ナフタレン-1-スルホン酸36.1部を3-アミノ-5-(3-スルホプロポキシ)ナフタレン-2,7-ジスルホン酸44.1部に変更する以外は実施例4と同様にして前記式(22)で示されるトリスアゾ化合物37部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は573nmであった。
前記式(9)の出発原料の7-アミノ-3-(3-スルホプロポキシ)ナフタレン-1-スルホン酸36.1部を3-アミノ-7-(3-スルホプロポキシ)ナフタレン-1,5-ジスルホン酸44.1部に変更する以外は実施例4と同様にして前記式(23)で示されるトリスアゾ化合物38部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は576nmであった。
前記式(10)の6-(4’-メトキシフェニルアミノ)-1-ナフトール-3-スルホン酸27.5部を6-(4’-アミノ-3’-スルホフェニルアミノ)-1-ナフトール-3-スルホン酸32.8部に変更する以外は実施例4と同様にして前記式(24)で示されるトリスアゾ化合物42部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は579nmであった。
前記式(18)の6-(4’-メトキシフェニルアミノ)-1-ナフトール-3-スルホン酸27.5部を6-(4’-アミノ-3’-スルホフェニルアミノ)-1-ナフトール-3-スルホン酸32.8部に変更する以外は実施例4と同様にして前記式(25)で示されるトリスアゾ化合物38部を得た。この化合物の20%ピリジン水溶液中の極大吸収波長は578nmであった。
実施例1で得られた化合物(6)の染料の0.03%および芒硝0.1%の濃度とした45℃の水溶液に、厚さ75μmのポリビニルアルコールを4分間浸漬した。このフィルムを3%ホウ酸水溶液中で50℃で5倍に延伸し、緊張状態を保ったまま水洗、乾燥して偏光膜を得た。
得られた偏光膜の極大吸収波長は578nmであり、偏光率は99.9%であり、高い偏光率を有していた。
化合物(6)と同様に、実施例2~10及び13~20に記載のアゾ化合物を用いて、実施例21と同様にして偏光膜を得た。得られた偏光膜の極大吸収波長及び偏光率を表1に示す。表1に示した通り、これらの化合物を用いて作成した偏光膜は、高い偏光率を有していた。
実施例24で得られた偏光膜の両面にポリビニルアルコール水溶液の接着剤を介してトリアセチルセルロースフィルム(TACフィルム;富士写真フィルム社製;商品名TD-80U)をラミネートし、粘着剤を用いてガラスに貼合して偏光板とした。この偏光板を促進キセノンアーク試験機(スガ精機社製;SX-75)で173h光照射し、照射前後の偏光率変化を測定した。偏光率変化率を{(照射前の偏光率)-(照射後の偏光率)}/(照射前の偏光率)で算出した結果、1.6%で優れた耐久性を示していた。
実施例22、31、34、35、37及び38で得られた偏光膜を用いて実施例39と同様に偏光膜を作成し、光照射前後の偏光率変化率を測定した結果、表2に示すとおり優れた耐久性を示していた。
実施例1の化合物に代えて、特許文献5、実施例13と同様にして作成した偏光膜を実施例33と同様にラミネートした。促進キセノンアーク試験機(スガ精機社製;SX-75)で173h光照射し、光照射前後の偏光度の変化は、それぞれ6.4%であり、実施例化合物に比べ1/3以下の耐久性であった。
実施例4で得られた化合物(9)を染料0.2%、シー・アイ・ダイレクト・オレンジ39を0.07%、シー・アイ・ダイレクト・レッド81を0.02%及び芒硝0.1%の濃度とした45℃の水溶液を用いる以外は実施例12と同様にして偏光膜を作成した。得られた偏光膜の極大吸収波長は555nmであり、530~570nmにおける単板平均透過率は42%、直交位の平均光透過率は0.02%であり、高い偏光度を有していた。この偏光膜に実施例12と同様に貼付してAR支持体付きの本発明の偏光板(液晶プロジェクタ緑色チャンネル用)を得た。本実施例の偏光板は、高い偏光率を有し、かつ高温且つ高湿の状態でも長時間にわたる耐久性を示した。また長時間暴露に対する耐光性も優れていた。
Claims (17)
- Xが置換基を有してもよいベンゾイルアミノ基、置換基を有してもよいフェニルアミノ基、置換基を有してもよいフェニルアゾ基又は置換基を有してもよいナフトトリアゾール基であって、これらの置換基は、水素原子、低級アルキル基、低級アルコキシル基、ヒドロキシル基、カルボキシル基、スルホン基、アミノ基又は置換アミノ基である、請求項1に記載のアゾ化合物及びその塩。
- R1がスルホン基を有する直鎖低級アルコキシル基である、請求項1乃至6のいずれか一項に記載のアゾ化合物及びその塩。
- R1がスルホプロポキシル基である、請求項1乃至6のいずれか一項に記載のアゾ化合物及びその塩。
- R2~R5が各々独立に水素原子、メチル基又はメトキシ基である、請求項1乃至8のいずれか一項に記載のアゾ化合物及びその塩。
- 請求項1乃至9のいずれか一項に記載のアゾ化合物及び/又はその塩を含有する偏光膜基材を含む、染料系偏光膜。
- 請求項1乃至9のいずれか一項に記載のアゾ化合物及び/又はその塩、並びにこれら以外の有機染料を1種類以上を含有する偏光膜基材を含む、染料系偏光膜。
- 請求項1乃至9のいずれか一項に記載のアゾ化合物及び/又はその塩を2種類以上、並びにこれら以外の有機染料を1種類以上を含有する偏光膜基材を含む、染料系偏光膜。
- 偏光膜基材がポリビニルアルコール樹脂又はその誘導体からなるフィルムである、請求項10乃至12のいずれか一項に記載の染料系偏光膜。
- 請求項10乃至12のいずれか一項に記載の染料系偏光膜の少なくとも一方の面に透明保護層を貼合して得られうる、染料系偏光板。
- 請求項10乃至14のいずれか一項に記載の染料系偏光膜又は染料系偏光板を用いる、液晶表示用偏光板。
- 請求項10乃至14のいずれか一項に記載の染料系偏光膜又は染料系偏光板を用いる、液晶プロジェクター用カラー偏光板。
- 請求項14乃至16のいずれか一項に記載の染料系偏光板を用いる、液晶表示装置。
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| HK11107369.5A HK1153217B (en) | 2008-06-17 | 2009-05-19 | Azo compound and salts thereof, as well as dye-based polarization films and polarizing plates comprising the same |
| JP2010517821A JP5366947B2 (ja) | 2008-06-17 | 2009-05-19 | アゾ化合物及びその塩、並びにそれらを含有する染料系偏光膜並びに偏光板 |
| CN200980122710.9A CN102066497B (zh) | 2008-06-17 | 2009-05-19 | 偶氮化合物及其盐、以及包含其的染料基偏振膜和偏振片 |
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| PCT/JP2009/059172 Ceased WO2009154055A1 (ja) | 2008-06-17 | 2009-05-19 | アゾ化合物及びその塩、並びにそれらを含有する染料系偏光膜並びに偏光板 |
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| Country | Link |
|---|---|
| US (1) | US8477268B2 (ja) |
| JP (1) | JP5366947B2 (ja) |
| KR (1) | KR101626169B1 (ja) |
| CN (2) | CN103242672B (ja) |
| TW (1) | TWI444438B (ja) |
| WO (1) | WO2009154055A1 (ja) |
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| WO2013008735A1 (ja) * | 2011-07-08 | 2013-01-17 | 日本化薬株式会社 | 偏光素子及び偏光板 |
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| KR20140041471A (ko) * | 2011-07-08 | 2014-04-04 | 니폰 가야꾸 가부시끼가이샤 | 편광소자 및 편광판 |
| WO2015152026A1 (ja) * | 2014-03-31 | 2015-10-08 | 日本化薬株式会社 | アゾ化合物及びそれらを含有する染料系偏光膜並びに偏光板 |
| CN103765255B (zh) * | 2011-09-09 | 2018-01-30 | 日本化药株式会社 | 偏振元件和偏振片 |
| US10007142B2 (en) | 2015-05-20 | 2018-06-26 | Nippon Kayaku Kabushiki Kaisha | Dye-based polarizer as well as polarizing plate and liquid crystal display device using the polarizer |
| KR20190103205A (ko) | 2017-01-20 | 2019-09-04 | 닛뽄 가야쿠 가부시키가이샤 | 아조 화합물 또는 그 염, 그리고 이것을 함유하는 염료계 편광막 및 염료계 편광판 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101460571B (zh) * | 2006-06-01 | 2012-11-07 | 日本化药株式会社 | 偶氮化合物及其盐,和包含该化合物或盐的含染料偏振膜 |
| CN102660133B (zh) | 2006-06-13 | 2015-08-19 | 日本化药株式会社 | 偶氮化合物和包含它的染料偏振膜 |
| KR101319162B1 (ko) * | 2006-06-22 | 2013-10-17 | 가부시키가이샤 폴라테크노 | 아조 화합물 및 그것들을 함유하는 염료계 편광막 |
| TWI406907B (zh) * | 2007-11-02 | 2013-09-01 | Nippon Kayaku Kk | 偶氮化合物及含有彼等之染料系偏光膜 |
| CN103275513B (zh) * | 2008-05-20 | 2015-08-19 | 日本化药株式会社 | 偶氮化合物及包含所述偶氮化合物的染料基偏振膜和偏振片 |
| CN104160305B (zh) * | 2012-02-28 | 2016-04-13 | 日本化药株式会社 | 染料系偏光元件和偏振片 |
| JP5989083B2 (ja) * | 2012-02-28 | 2016-09-07 | 日本化薬株式会社 | 染料系偏光素子及び偏光板 |
| WO2015046249A1 (ja) * | 2013-09-27 | 2015-04-02 | 日本化薬株式会社 | 染料系偏光素子、または、染料系偏光板 |
| CN108699346B (zh) | 2016-02-26 | 2021-06-29 | 日本化药株式会社 | 偶氮化合物或其盐以及含有偶氮化合物或其盐的偏振膜 |
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-
2009
- 2009-05-19 WO PCT/JP2009/059172 patent/WO2009154055A1/ja not_active Ceased
- 2009-05-19 US US12/999,447 patent/US8477268B2/en not_active Expired - Fee Related
- 2009-05-19 CN CN201310116053.5A patent/CN103242672B/zh active Active
- 2009-05-19 TW TW098116567A patent/TWI444438B/zh not_active IP Right Cessation
- 2009-05-19 KR KR1020107028168A patent/KR101626169B1/ko not_active Expired - Fee Related
- 2009-05-19 CN CN200980122710.9A patent/CN102066497B/zh active Active
- 2009-05-19 JP JP2010517821A patent/JP5366947B2/ja active Active
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| WO2004013232A1 (ja) * | 2002-08-05 | 2004-02-12 | Nippon Kayaku Kabushiki Kaisha | トリスアゾ化合物、水性インク組成物および着色体 |
| JP2004323712A (ja) * | 2003-04-25 | 2004-11-18 | Nippon Kayaku Co Ltd | ジスアゾ化合物、水性インク組成物及び着色体 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101873216B1 (ko) | 2011-07-08 | 2018-07-02 | 니폰 가야꾸 가부시끼가이샤 | 편광소자 및 편광판 |
| KR20140041471A (ko) * | 2011-07-08 | 2014-04-04 | 니폰 가야꾸 가부시끼가이샤 | 편광소자 및 편광판 |
| JPWO2013008735A1 (ja) * | 2011-07-08 | 2015-02-23 | 日本化薬株式会社 | 偏光素子及び偏光板 |
| WO2013008735A1 (ja) * | 2011-07-08 | 2013-01-17 | 日本化薬株式会社 | 偏光素子及び偏光板 |
| KR101873217B1 (ko) | 2011-07-08 | 2018-08-02 | 니폰 가야꾸 가부시끼가이샤 | 편광소자 및 편광판 |
| CN103765255B (zh) * | 2011-09-09 | 2018-01-30 | 日本化药株式会社 | 偏振元件和偏振片 |
| WO2013157348A1 (ja) * | 2012-04-18 | 2013-10-24 | 日東電工株式会社 | 偏光フィルム、画像表示装置、及び偏光フィルムの製造方法 |
| JP2013222117A (ja) * | 2012-04-18 | 2013-10-28 | Nitto Denko Corp | 偏光フィルム、画像表示装置、及び偏光フィルムの製造方法 |
| WO2015152026A1 (ja) * | 2014-03-31 | 2015-10-08 | 日本化薬株式会社 | アゾ化合物及びそれらを含有する染料系偏光膜並びに偏光板 |
| JPWO2015152026A1 (ja) * | 2014-03-31 | 2017-04-13 | 日本化薬株式会社 | アゾ化合物及びそれらを含有する染料系偏光膜並びに偏光板 |
| US10150871B2 (en) | 2014-03-31 | 2018-12-11 | Nippon Kayaku Kabushiki Kaisha | Azo compound, dye-based polarizing film containing same, and polarizing plate |
| US10007142B2 (en) | 2015-05-20 | 2018-06-26 | Nippon Kayaku Kabushiki Kaisha | Dye-based polarizer as well as polarizing plate and liquid crystal display device using the polarizer |
| KR20190103205A (ko) | 2017-01-20 | 2019-09-04 | 닛뽄 가야쿠 가부시키가이샤 | 아조 화합물 또는 그 염, 그리고 이것을 함유하는 염료계 편광막 및 염료계 편광판 |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1153217A1 (en) | 2012-03-23 |
| KR20110018362A (ko) | 2011-02-23 |
| KR101626169B1 (ko) | 2016-05-31 |
| JPWO2009154055A1 (ja) | 2011-11-24 |
| CN102066497B (zh) | 2014-02-26 |
| HK1183682A1 (en) | 2014-01-03 |
| JP5366947B2 (ja) | 2013-12-11 |
| US8477268B2 (en) | 2013-07-02 |
| TWI444438B (zh) | 2014-07-11 |
| CN103242672A (zh) | 2013-08-14 |
| US20110164208A1 (en) | 2011-07-07 |
| CN102066497A (zh) | 2011-05-18 |
| TW201011075A (en) | 2010-03-16 |
| CN103242672B (zh) | 2014-12-10 |
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