WO2016095659A1 - 染料化合物及其制备方法、着色剂、感光树脂组合物、滤光片 - Google Patents

染料化合物及其制备方法、着色剂、感光树脂组合物、滤光片 Download PDF

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WO2016095659A1
WO2016095659A1 PCT/CN2015/095127 CN2015095127W WO2016095659A1 WO 2016095659 A1 WO2016095659 A1 WO 2016095659A1 CN 2015095127 W CN2015095127 W CN 2015095127W WO 2016095659 A1 WO2016095659 A1 WO 2016095659A1
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Prior art keywords
dye compound
group
weight
acid
ethylenically unsaturated
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PCT/CN2015/095127
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English (en)
French (fr)
Inventor
辛阳阳
王雪岚
李琳
赵明
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京东方科技集团股份有限公司
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Priority to EP15869167.5A priority Critical patent/EP3235840A4/en
Priority to US15/125,289 priority patent/US20180187017A1/en
Publication of WO2016095659A1 publication Critical patent/WO2016095659A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/32—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
    • C08F220/325—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals containing glycidyl radical, e.g. glycidyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04—Acids; Metal salts or ammonium salts thereof
    • C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/60—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing nitrogen in addition to the carbonamido nitrogen
    • C08F220/606—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing nitrogen in addition to the carbonamido nitrogen and containing other heteroatoms
    • 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
    • C09B17/00—Azine dyes
    • C09B17/02—Azine dyes of the benzene series
    • 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
    • C09B21/00—Thiazine dyes
    • 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
    • C09B69/00—Dyes not provided for by a single group of this subclass
    • C09B69/10—Polymeric dyes; Reaction products of dyes with monomers or with macromolecular compounds
    • C09B69/101—Polymeric dyes; Reaction products of dyes with monomers or with macromolecular compounds containing an anthracene dye
    • 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
    • C09B69/00—Dyes not provided for by a single group of this subclass
    • C09B69/10—Polymeric dyes; Reaction products of dyes with monomers or with macromolecular compounds
    • C09B69/109—Polymeric dyes; Reaction products of dyes with monomers or with macromolecular compounds containing other specific dyes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
    • G03F7/0007—Filters, e.g. additive colour filters; Components for display devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/0045—Photosensitive materials with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
    • G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
    • G03F7/031—Organic compounds not covered by group G03F7/029
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
    • G03F7/105—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having substances, e.g. indicators, for forming visible images

Definitions

  • the present invention relates to the field of display technology, and in particular to a dye compound and a method for preparing the same, and a colorant, a photosensitive resin composition, and a filter comprising the dye compound.
  • the method for producing a color filter includes a pigment dispersion method using a pigment as a colorant, a printing method, an electrodeposition method, an inkjet method, and the like; a dyeing method or a dye dispersion method using a dye or a salt-forming dye as a colorant.
  • a pigment excellent in heat resistance and light resistance is used as a colorant of the filter. From the viewpoint of accuracy and stability of the formation method, a pigment dispersion method is often used. However, since the transmittance of the filter using the pigment as a coloring agent is low, and since the filter is generally prepared by radical polymerization of a polymerizable monomer, the polymerization of the monomer may cause the filter. The surface shrinks.
  • the object of the present invention is to solve the problem of low surface shrinkage and low transmittance of a filter using a pigment as a colorant in the prior art, and to provide a dye compound with high transmittance and shrinkage and preparation thereof.
  • Method, colorant, photosensitive resin composition, filter is to solve the problem of low surface shrinkage and low transmittance of a filter using a pigment as a colorant in the prior art, and to provide a dye compound with high transmittance and shrinkage and preparation thereof.
  • the dye compound provided by the present invention comprising a repeating unit represented by Formula 1, a repeating unit represented by Formula 2, and a repeating unit derived from an ethylenically unsaturated monomer containing an epoxy functional group;
  • R1, R2, R3, R4, R5 each independently represent a hydrogen atom, or a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group, a cycloalkyl group, or an aryl group; and the dye compound The molecular weight is 5000-20000.
  • the epoxy functional group-containing ethylenically unsaturated monomer comprises one or more of glycidyl methacrylate, glycidyl acrylate, and allyl glycidyl ether.
  • the dye compound has a molecular weight of 8000-12000;
  • the invention also provides a preparation method of the above dye compound, comprising the following steps:
  • the obtained amide compound is copolymerized with an ethylenically unsaturated monomer containing an epoxy functional group and an ethylenically unsaturated monomer containing at least one carboxyl group or a carboxylic acid anhydride group in a solvent to form a dye compound.
  • the weight ratio of the amino group-containing basic dye to the acid chloride-containing ethylenically unsaturated monomer in the step of preparing the amide compound is (0.5-4):1.
  • the reaction time is 2 to 5 hours and the reaction temperature is 0 to 20 ° C in the step of preparing the amide compound.
  • the weight ratio of the amide compound, the ethylenically unsaturated monomer containing at least one carboxyl group or the carboxylic anhydride group, the ethylenically unsaturated monomer containing the epoxy functional group, and the solvent in the copolymerization step is (2) -6): (1-5): (1-5): (15-25).
  • the ratio of the initiator of the copolymerization reaction to the sum of the ethylenically unsaturated monomer containing an epoxy functional group and the ethylenically unsaturated monomer containing at least one carboxyl group or a carboxylic acid anhydride group in the copolymerization step is 0.5%-5%.
  • the reaction temperature of the copolymerization reaction in the copolymerization step is 95-105 ° C, and the reaction time is 1-5 h.
  • the acid chloride-containing ethylenically unsaturated monomer comprises one or more of acryloyl chloride, methacryloyl chloride, N-hydroxyethyl acryloyl chloride or N-hydroxyethyl methacryloyl chloride. .
  • the amino-containing basic dye comprises one or more of basic blue 11, basic blue 17, basic blue 26, basic red 9, basic red 2, and basic violet 2.
  • the amino-containing basic dye comprises one or more of basic blue 11, basic blue 17, basic blue 26, basic red 9, basic red 2, and basic violet 2.
  • the epoxy functional group-containing ethylenically unsaturated monomer comprises one or more of glycidyl methacrylate, glycidyl acrylate, and allyl glycidyl ether.
  • the ethylenically unsaturated monomer containing at least one carboxyl group or a carboxylic acid anhydride group includes a monocarboxylic acid containing a vinyl group and an anhydrate thereof, a dicarboxylic acid and an anhydrate thereof, and a polyvalent carboxylic acid. And its anhydrate.
  • the vinyl group-containing monocarboxylic acid and an anhydrate thereof include any one of acrylic acid, methacrylic acid, crotonic acid, ⁇ -chloroacrylic acid, cinnamic acid, and a dehydrate thereof;
  • the vinyl group-containing dicarboxylic acid includes any one of maleic acid, fumaric acid, itaconic acid, citraconic acid, and a dehydrate thereof.
  • the present invention also provides a colorant comprising the above dye compound.
  • the colorant comprises: 5 to 50 parts by weight, preferably 10 to 30 parts by weight; and 5 to 50 parts by weight, preferably 10 to 30 parts by weight, of the dye compound.
  • the present invention also provides a photosensitive resin composition comprising the above dye compound.
  • the above photosensitive resin composition further comprises a pigment dispersion.
  • the above pigment dispersion is used for dyeing, and it is generally used after being dispersed, and a dispersant may be a commercially available dispersant.
  • the above photosensitive resin composition comprises:
  • Alkali-soluble resin 5-60 parts by weight
  • a photopolymerization initiator 0.1 to 10 parts by weight
  • the solvent is 100-3000 parts by weight.
  • the present invention also provides a filter prepared by using the above-mentioned photosensitive resin composition.
  • the epoxy group in the dye compound of the present invention undergoes cationic polymerization, and the epoxy group can undergo an addition reaction with a carboxyl group; and the ring-opening polymerization of the epoxy group and the addition reaction of the epoxy group with the carboxyl group are not Will cause shrinkage. Therefore, when the filter is prepared using the photosensitive resin composition containing the dye compound of the present invention, the shrinkage of the filter can be effectively reduced, so that the shrinkage of the surface of the filter can be effectively prevented while obtaining an improved transmittance.
  • Fig. 1 is a result of infrared spectrum measurement of a dye compound a1 according to Example 1 of the present invention.
  • the present invention provides a dye compound comprising a repeating unit represented by Formula 1, a repeating unit represented by Formula 2, and a repeating unit derived from an ethylenically unsaturated monomer containing an epoxy functional group;
  • R1, R2, R3, R4 and R5 each independently represent a hydrogen atom or a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group, a cycloalkyl group or an aryl group; the molecular weight of the dye compound It is 5000-20000.
  • the group represented by R1 to R5 may be optionally substituted with an alkyl group or a halogen.
  • the epoxy group in the dye compound of the present invention can undergo cationic polymerization, and the epoxy group can undergo an addition reaction with a carboxyl group; and the ring-opening polymerization of the epoxy group and the addition reaction of the epoxy group with the carboxyl group are not Will cause the filter to shrink. Therefore, the problem of shrinkage of the filter can be effectively reduced or avoided.
  • the epoxy functional group-containing ethylenically unsaturated monomer includes one or more of glycidyl methacrylate, glycidyl acrylate, and allyl glycidyl ether.
  • the molecular weight of the dye compound is from 8,000 to 12,000;
  • the invention also provides a preparation method of the above dye compound, which comprises the following steps:
  • the amino dye-containing basic dye is attached to an ethylenically unsaturated double bond to form a polymer compound.
  • the obtained amide compound is copolymerized with an ethylenically unsaturated monomer containing an epoxy functional group, an ethylenically unsaturated monomer containing at least one carboxyl group or a carboxylic acid anhydride group in a solvent to form a dye compound.
  • the ethylenically unsaturated monomer containing at least one carboxyl group or a carboxylic anhydride group is used in the photosensitive resin composition in the resulting dye compound, and the carboxyl group or the carboxylic anhydride group is reacted with the alkali solution during the alkali development process. It plays a role in improving alkali solubility.
  • the weight ratio of the amino group-containing basic dye to the acid chloride-containing ethylenically unsaturated monomer in the step of preparing the amide compound is (0.5-4):1.
  • the reaction time in the step of preparing the amide compound is 2-5 h, and the reaction The temperature is 0-20 °C.
  • the weight ratio of the amide compound, the ethylenically unsaturated monomer containing at least one carboxyl group or the carboxylic anhydride group, the ethylenically unsaturated monomer containing the epoxy functional group, and the solvent in the copolymerization step is (2-6) ): (1-5): (1-5): (15-25).
  • the solvent includes any one of ethylene glycol methyl ether, propylene glycol methyl ether, propylene glycol methyl ether acetate (PMA), and ethyl 3-ethoxypropionate.
  • the copolymerization initiator includes an azo compound such as 2,2'-azobisisobutyronitrile or a peroxy compound such as dibenzoyl peroxide.
  • the ratio of the initiator of the copolymerization reaction to the sum of the ethylenically unsaturated monomer containing an epoxy functional group and the ethylenically unsaturated monomer containing at least one carboxyl group or a carboxylic acid anhydride group in the copolymerization step is 0.5%. -5%.
  • the reaction temperature of the copolymerization reaction in the copolymerization step is 95-105 ° C, and the reaction time is 1-5 h.
  • the acid chloride-containing ethylenically unsaturated monomer comprises one or more of acryloyl chloride, methacryloyl chloride, N-hydroxyethyl acryloyl chloride or N-hydroxyethyl methacryloyl chloride.
  • the basic dye containing an amino group may be an amino group-containing basic dye such as azo, anthracene, triarylmethane, xanthene or phthalocyanine.
  • the basic dye containing an amino group includes one or more of Basic Blue 11, Basic Blue 17, Basic Blue 26, Basic Red 9, Basic Red 2, and Basic Violet 2.
  • the epoxy functional group-containing ethylenically unsaturated monomer includes one or more of glycidyl methacrylate, glycidyl acrylate, and allyl glycidyl ether.
  • the ethylenically unsaturated monomer containing at least one carboxyl group or a carboxylic anhydride group comprises: a monocarboxylic acid containing a vinyl group and an anhydrate thereof, a dicarboxylic acid and an anhydrate thereof, a polyvalent carboxylic acid and Dehydrated matter.
  • the monocarboxylic acid containing a vinyl group and an anhydrate thereof include any one of acrylic acid, methacrylic acid, crotonic acid, ⁇ -chloroacrylic acid, cinnamic acid, and a dehydrate thereof;
  • the dicarboxylic acid containing a vinyl group includes: maleic acid, fumaric acid, itaconic acid, Any of citraconic acid and its dehydrates.
  • the present invention also provides a colorant comprising the above dye compound.
  • the colorant comprises: 5 to 50 parts by weight of the dye compound; preferably 10 to 30 parts by weight, and 5 to 50 parts by weight, preferably 10 to 30 parts by weight, of the pigment dispersion.
  • the present invention also provides a photosensitive resin composition comprising the above dye compound.
  • the above photosensitive resin composition further comprises a pigment dispersion.
  • the pigment dispersion comprises a pigment and a dispersant.
  • the pigment may include phthalocyanines, anthraquinones, azos, and the like, and specifically, may include: a red pigment, mainly a quinone, a quinacridone, or a pyrrolopyrrole: such as PR224, PR254, PR255.
  • a dispersing agent may be a commercially available dispersing agent.
  • the above photosensitive resin composition comprises:
  • a dye compound 5-50 parts by weight, preferably 10-30 parts by weight;
  • Alkali-soluble resin 5-60 parts by weight, preferably 10-30 parts by weight;
  • a photopolymerization initiator 0.1 to 10 parts by weight, preferably 0.5 to 5 parts by weight;
  • the solvent is 100-3000 parts by weight, preferably 500-2000 parts by weight.
  • the present invention also provides a filter which is prepared using the above-mentioned photosensitive resin composition.
  • the alkali-soluble resin is selected from a (meth)acrylic resin, and may be a copolymer of (meth)acrylic acid and a (meth) acrylate and another compound containing a double bond. Such as Nippon Steel Chemical Co., Ltd., the products of the trade name V259ME and V301ME.
  • the alkali-soluble resin contains a carboxyl group and can be dissolved by a developing solution, and mainly functions as a developing agent.
  • the polymerizable monomer may be an acrylate monomer such as pentaerythritol triacrylate, dipentaerythritol triacrylate, pentaerythritol tetraacrylate, dipentaerythritol tetraacrylate, dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate (DPHA), etc. .
  • the double bond contained in the polymerizable monomer can be polymerized by the initiator under illumination, and the polymerization causes a change in the solubility of the film layer, part of the double bond of the light is polymerized, cannot be dissolved in the alkali solution (developing solution), and is not illuminated. Partly, it can be dissolved in lye.
  • the photopolymerization initiator may be a diimidazole compound, a benzoin compound, a polynuclear oxime compound, a benzoin compound, a benzophenone compound, an acetophenone compound, a triazine compound, a diazo compound, or a xanthone.
  • the photopolymerization initiator can initiate polymerization of the polymerizable monomer.
  • the photosensitive resin composition of the present invention preferably contains a solvent and is prepared into a liquid composition.
  • the solvent may have a moderate volatility as long as it can disperse or dissolve the components of the photosensitive resin composition and does not react with these components.
  • These solvents may be propylene glycol methyl ether acetate, cyclohexanone, propylene glycol methyl ether, diethylene glycol diethyl ether or ethyl 3-ethoxypropionate. These solvents may be used alone or in combination of two or more.
  • the photosensitive resin composition of the present invention may contain other additives such as a non-ionic, cationic or anionic surfactant, in addition to the above-mentioned components such as a coloring agent, an alkali-soluble resin, a monomer, and an initiator.
  • a coloring agent such as an alkali-soluble resin, a monomer, and an initiator.
  • an adhesion promoter such as vinyltrimethoxysilane or 3-mercaptopropyltrimethoxysilane
  • an antioxidant such as 2,6-di-tert-butylphenol or the like.
  • This embodiment provides a dye compound a1 whose structure of the repeating unit is as follows:
  • n, m, p are integers greater than 1; the molecular weight of the dye compound is 8000.
  • a nitrogen inlet, a stirrer, a heater, a condenser, a thermometer, and a nitrogen gas were introduced into a four-necked conical flask having a volume of 1000 ml, and 40 parts by weight of the above-mentioned amide compound and 30 parts by weight of a methacrylic monomer were added at a time. 30 parts by weight of glycidyl methacrylate monomer and 200 parts by weight of ethyl 3-ethoxypropionate (EEP) as a solvent.
  • EEP ethyl 3-ethoxypropionate
  • the reaction temperature in the polymerization process was maintained at 100 ° C, and polymerization was carried out for 5 hours. After the completion of the polymerization, 200 parts by weight of toluene was added to the polymer solution, followed by stirring and washing, and the polymer was precipitated, followed by centrifugal filtration to obtain a polymer dye compound a1.
  • the infrared spectrum analysis of the obtained polymer dye compound a1 was carried out, and the results are shown in Fig. 1. It can be seen from Fig. 1 that the wavelength 2960 is the absorption peak of the long-chain alkyl group, the wavelength 1722 is the absorption peak of the ester carbonyl group, the wavelength 1681 is the absorption peak of the amide carbonyl group (indicating the formation of the amide bond), and the wavelength 1100 is the ether bond. (Epoxy) absorption peak, indicating that the polymer compound a1 having an ether bond was synthesized in the present example.
  • This embodiment provides a dye compound a2, and the structure of the repeating unit is as follows.
  • n, m, p are integers greater than 1; the molecular weight of the dye compound is 12,000.
  • a nitrogen inlet, a stirrer, a heater, a condenser and a thermometer were placed on a four-necked conical flask having a volume of 1000 ml, and nitrogen gas was introduced, and 60 parts by weight of the above amide compound, 20 parts by weight of acrylic acid, and glycidyl acrylate were added at a time. 20 parts by weight of the monomer, and 200 parts by weight of ethyl 3-ethoxypropionate (EEP) as a solvent.
  • EEP ethyl 3-ethoxypropionate
  • the reaction temperature in the polymerization process was maintained at 95 ° C, and polymerization was carried out for 3 hours. After the completion of the polymerization, 200 parts by weight of toluene was added to the polymer solution, and the mixture was stirred and washed, the polymer was precipitated, and the polymer dye compound a2 was obtained by centrifugal filtration.
  • This embodiment provides a dye compound a3 whose structure of the repeating unit is as follows:
  • n, m, p are integers greater than 1; the dye compound has a molecular weight of 5000.
  • a nitrogen inlet, a stirrer, a heater, a condenser and a thermometer were placed on a four-necked conical flask having a volume of 1000 ml, and nitrogen gas was introduced, and 20 parts by weight of the above-mentioned amide compound, 40 parts by weight of methacrylic acid, and allylic were added at a time. 40 parts by weight of glycidyl ether, and 200 parts by weight of ethyl 3-ethoxypropionate (EEP) as a solvent.
  • EEP ethyl 3-ethoxypropionate
  • the reaction temperature in the polymerization process was maintained at 105 ° C, and polymerization was carried out for 1 hour. After the completion of the polymerization, 200 parts by weight of toluene was added to the polymer solution, and the mixture was stirred and washed, the polymer was precipitated, and the polymer dye compound a3 was obtained by centrifugal filtration.
  • This embodiment provides a dye compound a4, and the structure of the repeating unit is as follows.
  • n, m, p are integers greater than 1; the molecular weight of the dye compound is 20,000.
  • a nitrogen inlet, a stirrer, a heater, a condenser and a thermometer were placed on a four-necked conical flask having a volume of 1000 ml, and nitrogen gas was introduced, and 20 parts by weight of the above-mentioned amide compound, 40 parts by weight of methacrylic acid, and allylic were added at a time. 40 parts by weight of glycidyl ether, and 200 parts by weight of ethyl 3-ethoxypropionate (EEP) as a solvent.
  • EEP ethyl 3-ethoxypropionate
  • the reaction temperature in the polymerization process was maintained at 105 ° C, and polymerization was carried out for 2 hours. After the completion of the polymerization, 200 parts by weight of toluene was added to the polymer solution, and the mixture was stirred and washed, and the polymer was precipitated, followed by centrifugal filtration to obtain a polymer dye compound a4.
  • the photosensitive resin compositions of Examples 5 to 12 and Comparative Examples 1-2 were separately prepared by uniformly mixing the components according to the components and contents described in Table 1 using a magnetic stirrer and stirring for 2 hours.
  • the amounts of the respective components in Table 1 are parts by weight, and the amounts of the pigment dispersions PM-1, PM-2, and PM-3 are all in parts by weight of the solid matter.
  • the pigment dispersion was prepared according to the composition described in Table 2 by the following method:
  • the photosensitive resin compositions obtained in the examples and the comparative examples were respectively coated on a 10 cm ⁇ 10 cm glass substrate to obtain a coating film having a thickness of about 3 ⁇ m, preliminarily tested at 90 ° C for 100 s, and then ultraviolet light (exposure machine canon PLA-501F)
  • the coating film was irradiated with an illuminance of 50 mj/cm 2 , and then immersed in a KOH developer having a concentration of 0.042% by weight at 23 ° C for 2 minutes, then washed with pure water, and baked at 230 ° C for 30 minutes, thereby being in the glass.
  • a photosensitive resin layer is formed on the substrate to obtain a filter.
  • the properties of the obtained filter were evaluated by the following methods:
  • the pattern was ground with a 365 nm intensity of 10 mW/cm 2 of ultraviolet light with a minimum precision of 3 ⁇ m, and then developed with a 0.042 wt% aqueous KOH solution at 23 ° C for 40 s, and then washed with pure water for 1 min.
  • the measurement was performed at the minimum size of the pattern film formed at the time of the above sensitivity measurement.
  • the obtained filter was irradiated with ultraviolet light of 150 mj/cm 2 using a high-pressure mercury lamp, and then a small hole was observed on the surface by a scanning electron microscope (SEM). If there was no small hole on the surface, indicating no shrinkage, it was marked as " ⁇ ". "If there are a small number of small holes on the surface, indicating a small amount of shrinkage, it is marked as " ⁇ ”. If there are more small holes on the surface, the surface shrinkage is more serious, it is marked as "X”.
  • the performance test results of the filters prepared from the photosensitive resin compositions of Examples 5 to 12 and Comparative Examples 1-2 are shown in Table 3.
  • Table 3 the sensitivity and resolution of the filter prepared from the photosensitive resin composition of Example 5-12 were higher than those of the photosensitive resin composition of Comparative Example 1-2.
  • Excellent, especially the transmittance has been significantly improved. Since the change in transmittance can reflect heat resistance and light resistance from one side, if the heat resistance is poor, the transmittance will change significantly after baking at a high temperature of 230°; the transmittance of the present invention is excellent, At the same time, it also reflects its heat resistance and light resistance. That is, the above-mentioned result surface can obtain a filter having excellent heat resistance and light resistance and high transmittance from the photosensitive resin composition containing the dye compound of the present invention, and the filter prepared thereby does not. There is surface shrinkage.

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Abstract

本发明提供一种染料化合物及其制备方法、着色剂、感光树脂组合物、滤光片。由于本发明的染料化合物包含环氧基团，因此其能够在获得提高透过率的同时有效防止滤光片表面的收缩。

Description

染料化合物及其制备方法、着色剂、感光树脂组合物、滤光片 技术领域
本发明涉及显示技术领域，具体地，涉及一种染料化合物及其制备方法、以及包含该染料化合物的着色剂、感光树脂组合物、和滤光片。
背景技术
近年来，对于液晶显示器所使用的彩色滤光片，提高了对其透过率(即亮度)以及可靠性的要求。
作为彩色滤光片的制造方法，包括使用颜料作为着色剂的颜料分散法、印刷法、电沉积法、和喷墨法等；使用染料或成盐染料作为着色剂的染色法、染料分散法。
通常，使用耐热性、耐光性优异的颜料作为滤光片的着色剂。从形成方法的精度和稳定性考虑，大多使用颜料分散法。但由于现有使用颜料作为着色剂的滤光片的透过率较低；而且，由于滤光片一般通过可聚合单体的自由基聚合制备，但是，由于单体聚合会导致滤光片的表面收缩。
发明内容
本发明的目的是解决现有技术中以颜料作为着色剂的滤光片的表面收缩和透过率较低的问题，提供一种高透过率、又可以减小收缩的染料化合物及其制备方法、着色剂、感光树脂组合物、滤光片。
本发明所提供的染料化合物，其包含式1所示的重复单元、式2所示的重复单元，和来自含有环氧官能团的烯属不饱和单体的重复单元；
其中，式1和式2所示的重复单元的结构如下所示：
Figure PCTCN2015095127-appb-000001
其中，R1、R2、R3、R4、R5各自独立的表示氢原子、或具有1-12个碳原子的直链烷基、支链烷基、环烷基、或芳基；并且所述染料化合物的分子量为5000-20000。
优选的是，所述的含有环氧官能团的烯属不饱和单体包括：甲基丙烯酸缩水甘油酯、丙烯酸缩水甘油酯、烯丙基缩水甘油醚中的一种或多种。
优选的是，所述染料化合物的分子量为8000-12000；
本发明还提供一种上述染料化合物的制备方法，包括以下步骤：
1)制备酰胺化合物的步骤
将含有酰氯的烯属不饱和单体与含有氨基的碱性染料反应得到的酰胺化合物；这样含有氨基的碱性染料接上烯属不饱和双键，用于形成高分子化合物
2)共聚合步骤
将获得的所述酰胺化合物与含有环氧官能团的烯属不饱和单体、以及含有至少一个羧基或羧酸酐基团的烯属不饱和单体在溶剂中进行共聚合反应生成染料化合物。
优选的是，在制备酰胺化合物步骤中所述含有氨基的碱性染料与含有酰氯的烯属不饱和单体的重量比为(0.5-4)∶1。
优选的是，在制备酰胺化合物步骤中反应时间为2-5h，反应温度为0-20℃。
优选的是，在所述共聚合步骤中酰胺化合物、含有至少一个羧基或羧酸酐基团的烯属不饱和单体、含有环氧官能团的烯属不饱和单体和溶剂的重量比为(2-6)∶(1-5)∶(1-5)∶(15-25)。
优选的是，在所述共聚合步骤中共聚合反应的引发剂与含有环氧官能团的烯属不饱和单体和含有至少一个羧基或羧酸酐基团的烯属不饱和单体之和的比例为0.5％-5％。
优选的是，在所述共聚合步骤中共聚反应的反应温度为95-105℃，反应时间1-5h。
优选的是，所述的含有酰氯的烯属不饱和单体包括：丙烯酰氯、甲基丙烯酰氯、N-羟乙基丙烯酰氯或N-羟乙基甲基丙烯酰氯中的一种或多种。
优选的是，所述的含有氨基的碱性染料包括：碱性蓝11、碱性蓝17、碱性蓝26，碱性红9、碱性红2，碱性紫2中的一种或多种。
优选的是，所述的含有环氧官能团的烯属不饱和单体包括：甲基丙烯酸缩水甘油酯、丙烯酸缩水甘油酯、烯丙基缩水甘油醚中的一种或多种。
优选的是，所述含有至少一个羧基或羧酸酐基团的烯属不饱和单体包括：含有乙烯基团的一元羧酸及其脱水物、二元羧酸及其脱水物、多价羧酸及其脱水物。
优选的是，所述含有乙烯基团的一元羧酸及其脱水物包括丙烯酸、甲基丙烯酸、丁烯酸、α-氯丙烯酸、肉桂酸及其脱水物中的任意一种；
所述含有乙烯基团的二元羧酸包括：马来酸、富马酸、衣康酸、柠康酸及其脱水物中的任意一种。
本发明还提供一种包含上述染料化合物的着色剂。
优选的，所述着色剂包括：染料化合物5-50重量份，优选10-30重量份；颜料5-50重量份，优选10-30重量份。
本发明还提供一种包含上述染料化合物的感光树脂组合物。
优选的是，上述的感光树脂组合物，还包括：颜料分散体。
上述颜料分散体用于染色，一般经过分散后才能进行使用，分散剂可以采用市售的分散剂。
优选的是，上述的感光树脂组合物，包括：
染料化合物5-50重量份；
颜料分散体5-50重量份；
碱可溶性树脂5-60重量份；
可聚合单体5-60重量份；
光聚合引发剂0.1-10重量份；
溶剂100-3000重量份。
本发明还提供一种滤光片，所述滤光片是采用上述的感光树脂组合物制备的。
由于本发明的染料化合物中的环氧基团发生阳离子聚合、并且环氧基团能够与羧基发生加成反应；而且环氧基团的开环聚合以及环氧基团与羧基的加成反应不会引起收缩。因此，使用包含本发明染料化合物的感光树脂组合物制备滤光片时，可以有效降低滤光片的收缩，从而在获得提高的透过率的同时能够有效防止滤光片表面的收缩。
附图说明
图1为根据本发明实施例1的染料化合物a1的红外线光谱测试结果。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明作进一步详细描述。
本发明提供一种染料化合物，其包含式1所示的重复单元、式2所示的重复单元，和来自含有环氧官能团的烯属不饱和单体的重复单元；
其中，式1和式2所示重复单元的结构如下：
Figure PCTCN2015095127-appb-000002
其中，R1、R2、R3、R4、R5各自独立的表示氢原子、或具有1-12个碳原子的直链烷基、支链烷基、环烷基、芳基；所述染料化合物的分子量为5000-20000。R1-R5所表示的基团可以任选地被烷基或卤素取代。
由于本发明染料化合物中的环氧基团能够发生阳离子聚合、并且环氧基团能够与羧基发生加成反应；而且环氧基团的开环聚合以及环氧基团与羧基的加成反应不会引起滤光片收缩。因此，可以有效地降低或避免滤光片收缩的问题。
优选的是，含有环氧官能团的烯属不饱和单体包括：甲基丙烯酸缩水甘油酯、丙烯酸缩水甘油酯、烯丙基缩水甘油醚中的一种或多种。
优选的是，染料化合物的分子量为8000-12000；
本发明还提供一种上述染料化合物的制备方法，其包括以下步骤：
(方案1)
Figure PCTCN2015095127-appb-000003
1)制备酰胺化合物步骤
将含有酰氯的烯属不饱和单体与含有氨基的碱性染料反应得到的酰胺化合物；
这样含有氨基的碱性染料接上烯属不饱双键，用于形成高分子化合物。
2)共聚合步骤
将获得的所述酰胺化合物与含有环氧官能团的烯属不饱和单体、含有至少一个羧基或羧酸酐基团的烯属不饱和单体在溶剂中进行共聚合反应生成染料化合物。
其中，含有至少一个羧基或羧酸酐基团的烯属不饱和单体在生成的染料化合物用于感光树脂组合物中，在碱液显影过程中，所述羧基或羧酸酐基团与碱液反应，起到提高碱溶性的作用。
优选的是，在制备酰胺化合物步骤中所述含有氨基的碱性染料与含有酰氯的烯属不饱和单体的重量比为(0.5-4)∶1。
优选的是，在制备酰胺化合物步骤中反应时间为2-5h，反应 温度为0-20℃。
优选的是，在共聚合步骤中酰胺化合物、含有至少一个羧基或羧酸酐基团的烯属不饱和单体、含有环氧官能团的烯属不饱和单体和溶剂的重量比为(2-6)∶(1-5)∶(1-5)∶(15-25)。
其中，溶剂包括乙二醇甲醚、丙二醇甲醚、丙二醇甲醚醋酸酯(PMA)、3-乙氧基丙酸乙酯中的任意一种。
共聚引发剂包括2，2′-偶氮双异丁氰等偶氮化合物，过氧化二苯甲酰等过氧化合物。
优选的是，在共聚合步骤中共聚合反应的引发剂与含有环氧官能团的烯属不饱和单体和含有至少一个羧基或羧酸酐基团的烯属不饱和单体之和的比例为0.5％-5％。
优选的是，在共聚合步骤中共聚反应的反应温度为95-105℃，反应时间1-5h。
优选的是，含有酰氯的烯属不饱和单体包括：丙烯酰氯、甲基丙烯酰氯、N-羟乙基丙烯酰氯或N-羟乙基甲基丙烯酰氯中的一种或多种。
含有氨基的碱性染料可以是偶氮类、蒽醌类、三芳甲烷类、呫吨类、酞菁类等含有氨基的碱性染料。
优选的是，含有氨基的碱性染料包括：碱性蓝11、碱性蓝17、碱性蓝26，碱性红9、碱性红2，碱性紫2中的一种或多种。
优选的是，含有环氧官能团的烯属不饱和单体包括：甲基丙烯酸缩水甘油酯、丙烯酸缩水甘油酯、烯丙基缩水甘油醚中的一种或多种。
优选的是，含有至少一个羧基或羧酸酐基团的烯属不饱和单体包括：含有乙烯基团的一元羧酸及其脱水物、二元羧酸及其脱水物、多价羧酸及其脱水物。
优选的是，含有乙烯基团的一元羧酸及其脱水物包括丙烯酸、甲基丙烯酸、丁烯酸、α-氯丙烯酸、肉桂酸及其脱水物中的任意一种；
含有乙烯基团的二元羧酸包括：马来酸、富马酸、衣康酸、 柠康酸及其脱水物中的任意一种。
本发明还提供一种包含上述染料化合物的着色剂。
优选的，着色剂包括：染料化合物5-50重量份；优选10-30重量份，和颜料分散体5-50重量份，优选10-30重量份。
本发明还提供一种包含上述染料化合物的感光树脂组合物。
优选的是，上述感光树脂组合物，还包括：颜料分散体。所述颜料分散体包含颜料和分散剂。
颜料可以包括酞菁类、蒽醌类、偶氮类等，具体地，可以包括：红色颜料，以苝系、喹吖啶酮、吡咯并吡咯类为主：如P.R.224、P.R.254、P.R.255、P.R.264、P.R.122、P.R.123、P.R.177、P.R.179、P.R.190、P.R.202、P.R.210、P.R.270、P.R.272、P.R.122等；蓝色颜料，例如，P.B.1、P.B.2、P.B.15、P.B.15:3、P.B.15:4、P.B.15:6、P.B.16、P.B.22、P.B.60、P.B.66等；紫色颜料，例如，P.V.32、P.V.36、P.V.38、P.V.39、P.V.23、P.V.9、P.V.1等；黄色颜料如偶氮类以及杂环类：例如，P.Y.1、P.Y.12、P.Y.3、P.Y.13、P.Y.83、P.Y.93、P.Y.94、P.Y.95、P.Y.109、P.Y.126、P.Y.127、P.Y.138、P.Y.139、P.Y.147、P.Y.150、P.Y.174等。
上述颜料用于染色，一般经过分散后才能进行使用，分散剂可以采用市售的分散剂。
优选的是，上述的感光树脂组合物，包括：
染料化合物5-50重量份，优选10-30重量份；
颜料分散体5-50重量份，优选10-30重量份；
碱可溶性树脂5-60重量份，优选10-30重量份；
可聚合单体5-60重量份，优选10-30重量份；
光聚合引发剂0.1-10重量份，优选0.5-5重量份；
溶剂100-3000重量份，优选500-2000重量份。
本发明还提供一种滤光片，其是采用上述的感光树脂组合物制备的。
所述碱可溶性树脂选自(甲基)丙烯酸类树脂，可以是(甲基)丙烯酸与(甲基)丙烯酸酯及其他含双键的化合物的共聚物。 如新日铁化学制，商品名V259ME和V301ME的产品。碱可溶性树脂中含有羧基，可以被显影液溶解，主要起到显影的作用。
可聚合单体可以为丙烯酸酯类单体，如季戊四醇三丙烯酸酯、双季戊四醇三丙烯酸酯、季戊四醇四丙烯酸酯、双季戊四醇四丙烯酸酯、双季戊四醇五丙烯酸酯、双季戊四醇六丙烯酸酯(DPHA)等。可聚合单体中含有的双键在光照下可以由引发剂引发聚合，聚合导致膜层溶解性的改变，光照的部分双键聚合了，不能溶解于碱液中(显影液)，非光照的部分，能溶解于碱液中。
光聚合引发剂可以是二咪唑系化合物、安息香系化合物、多核醌系化合物、安息香系化合物、二苯甲酮系化合物、苯乙酮系化合物、三嗪系化合物、重氮系化合物、咕吨酮系化合物、肟酯类化合物、碘鎓盐硫鎓盐等的一种或多种的组合。例如，N-苯甲酰基氧基-1-(4-苯基硫基苯基)辛烷-1-酮-2-亚胺(0XE01)。光聚合引发剂可以引发可聚合单体的聚合。
本发明的感光树脂组合物，优选地包含溶剂并且调制成液状组合物。上述溶剂只要能够使感光树脂组合物的组分分散或溶解，且不与这些成分反应，具有适度的挥发性即可。这些溶剂可以为丙二醇甲醚醋酸酯、环己酮、丙二醇甲醚、二乙二醇二乙醚、3-乙氧基丙酸乙酯等，这些溶剂可以单独或混合两种以上使用。
本发明的感光树脂组合物，除上述着色剂、碱可溶性树脂、单体、引发剂等成分外，根据需要也可以含有其它添加剂，例如非离子系、阳离子系、阴离子系表面活性剂等表面活性剂；乙烯基三甲氧基硅烷、3-巯基丙基三甲氧基硅烷等密合促进剂；2，6-二叔丁基苯酚等抗氧剂等。
通过以下实施例对本发明进行详细地描述，从而使本领域技术人员更加清楚地理解本发明的技术特征和有益效果。
实施例1
本实施例提供一种染料化合物a1，其重复单元的结构如下所示：
Figure PCTCN2015095127-appb-000004
其中，n，m，p为大于1的整数；染料化合物的分子量为8000。
按照方案2制备染料化合物a1：
(方案2)
Figure PCTCN2015095127-appb-000005
1)制备酰胺化合物的步骤
向含有30重量份甲基丙烯酰氯的三口烧瓶中加入作为溶剂的50重量份的三乙胺，然后加入20重量份的碱性蓝17，在10℃ 下反应3h，然后过滤、旋蒸得到酰胺化合物。
2)共聚合步骤
在容积为1000毫升的四口锥形瓶上设置氮气入口，搅拌器，加热器，冷凝管及温度计，并导入氮气，一次加入上述的酰胺化合物40重量份、甲基丙烯酸单体30重量份、甲基丙烯酸缩水甘油酯单体30重量份，以及作为溶剂的3-乙氧基丙酸乙酯(EEP)200重量份。
在搅拌的同时，采用油浴使锥形瓶的温度提升至100℃，然后将作为聚合引发剂的2，2’-偶氮双-2-甲基丁腈3重量份溶于有机溶剂EEP中，并以五等分的量在1h等间隔添加在锥形瓶中。
聚合过程的反应温度维持100℃，聚合5h，聚合完成后，向该聚合物溶液中加入200重量份的甲苯进行搅拌洗涤，聚合物析出，再经离心过滤可得到高分子染料化合物a1。
对获得高分子染料化合物a1进行红外图谱分析，结果见图1。从图1可见，波长2960处是长链烷基的吸收峰，波长1722处是酯羰基的吸收峰，波长1681处是酰胺羰基的吸收峰(表明酰胺键形成)，波长1100处是醚键的(环氧)吸收峰，说明本实施例合成了具有醚键的高分子化合物a1。
实施例2：
本实施例提供一种染料化合物a2，其重复单元的结构如下所示，
Figure PCTCN2015095127-appb-000006
其中，n，m，p为大于1的整数；染料化合物的分子量为12000。
与方案2类似，染料化合物a2的制备步骤如下：；
1)制备酰胺化合物的步骤
向含有20重量份丙烯酰氯的三口烧瓶中加入作为溶剂的50重量份的三乙胺，然后加入20重量份的碱性红2，在2℃下反应2h，然后过滤、旋蒸得到酰胺化合物。
2)共聚合步骤
在容积为1000毫升的四口锥形瓶上设置氮气入口，搅拌器，加热器，冷凝管及温度计，并导入氮气，一次加入上述的酰胺化合物60重量份、丙烯酸20重量份、丙烯酸缩水甘油酯单体20重量份，以及作为溶剂的3-乙氧基丙酸乙酯(EEP)200重量份。
在搅拌的同时，采用油浴使锥形瓶的温度提升至95℃，然后将作为聚合引发剂的2，2’-偶氮双-2-甲基丁晴2重量份溶于有机溶剂EEP中，并以五等分的量在1h等间隔添加在锥形瓶中。
聚合过程的反应温度维持95℃，聚合3h，聚合完成后，该聚合物溶液中，加入200重量份的甲苯加以搅拌洗涤，聚合物析出，再经离心过滤可得到高分子染料化合物a2。
对获得高分子染料化合物a2进行红外图谱分析，得到与图1类似的结果，说明本实施例合成了具有醚键的高分子化合物a2。
实施例3：
本实施例提供一种染料化合物a3，其重复单元的结构如下所示：
Figure PCTCN2015095127-appb-000007
其中，n，m，p为大于1的整数；该染料化合物的分子量为5000。
与方案2类似，染料化合物a3的制备步骤如下：
1)制备酰胺化合物的步骤
向含有10重量份丙烯酰氯的三口烧瓶中加入作为溶剂的50重量份的三乙胺，然后加入40重量份的碱性红2，在20℃下反应5h，然后过滤、旋蒸得到酰胺化合物。
2)共聚合步骤
在容积为1000毫升的四口锥形瓶上设置氮气入口，搅拌器，加热器，冷凝管及温度计，并导入氮气，一次加入上述的酰胺化合物20重量份、甲基丙烯酸40重量份、烯丙基缩水甘油醚40重量份，以及作为溶剂的3-乙氧基丙酸乙酯(EEP)200重量份。
在搅拌的同时，采用油浴使锥形瓶的温度提升至105℃，然后将作为聚合引发剂的过氧化二苯甲酰0.4重量份溶于有机溶剂EEP中，并以五等分的量在1h等间隔添加在锥形瓶中。
聚合过程的反应温度维持105℃，聚合1h，聚合完成后，该聚合物溶液中，加入200重量份的甲苯加以搅拌洗涤，聚合物析出，再经离心过滤可得到高分子染料化合物a3。
对获得高分子染料化合物a3进行红外图谱分析，得到与图1相似的结果，说明本实施例合成了具有醚键的高分子化合物a3。
实施例4：
本实施例提供一种染料化合物a4，其重复单元的结构如下所示，
Figure PCTCN2015095127-appb-000008
其中，n，m，p为大于1的整数；该染料化合物的分子量为20000。
与方案2类似，染料化合物a4的制备步骤如下：
1)制备酰胺化合物的步骤
向含有10重量份丙烯酰氯的三口烧瓶中加入作为溶剂的50重量份的三乙胺，然后加入40重量份的碱性红2，在20℃下反应5h，然后过滤、旋蒸得到酰胺化合物。
2)共聚合步骤
在容积为1000毫升的四口锥形瓶上设置氮气入口，搅拌器，加热器，冷凝管及温度计，并导入氮气，一次加入上述的酰胺化合物20重量份、甲基丙烯酸40重量份、烯丙基缩水甘油醚40重量份，以及作为溶剂的3-乙氧基丙酸乙酯(EEP)200重量份。
在搅拌的同时，采用油浴使锥形瓶的温度提升至105℃，然后将作为聚合引发剂的过氧化二苯甲酰0.4重量份溶于有机溶剂EEP中，并以五等分的量在1h等间隔添加在锥形瓶中。
聚合过程的反应温度维持105℃，聚合2h，聚合完成后，该聚合物溶液中，加入200重量份的甲苯加以搅拌洗涤，聚合物析出，再经离心过滤可得到高分子染料化合物a4。
对获得高分子染料化合物a4进行红外图谱分析，得到与图1相似的结构，说明本实施例合成了具有醚键的高分子化合物a4。
实施例5-12和对比例1-2
按照表1所述的组分和含量，使用磁力搅拌器，搅拌2h使各组分均匀混合，由此分别制备得到实施例5-12以及对比例1-2的感光树脂组合物。
表1中各组分的量均为重量份，其中颜料分散体PM-1、PM-2、PM-3的量均以固体物质的重量份计。
表1各实施例和对比例中感光树脂组合物的组成
Figure PCTCN2015095127-appb-000009
所述颜料分散体根据表2所述的组成通过以下方法制备：
将表2中各组分搅拌混合均匀，使用直径为0.5mm氧化锆珠，在研磨机(华尔宝DYNO-MILL RESEARCH LAB)中分散5小时后，用5.0μm的过滤器过滤，获得颜料分散体PM-1、PM-2、PM-3。
表2颜料分散体中各组分及含量
Figure PCTCN2015095127-appb-000010
分别将实施例和对比例中所得感光树脂组合物涂布在10cm×10cm玻璃基板上，得到约3μm厚的涂膜，在90℃下预考100s，然后用紫外光(曝光机canon PLA-501F)以50mj/cm2的照度照射该涂膜，之后浸泡于23℃浓度为0.042重量％的KOH显影液中显影2min，然后以纯水洗净，再在230℃烘烤30min，由此在玻璃基板上形成感光性树脂层，从而获得滤光片。
通过以下方法评价所得滤光片的性质：
1.灵敏度
用365nm强度为10mW/cm2的紫外光照射最小精度为3μm的图案研磨，然后用0.042wt％的KOH水溶液在23℃显像40s之后，用纯水洗涤1min。
2.分辨率
以上述灵敏度测定时形成的图案膜的最小尺寸进行测定。
3.透过率
透过率的评价使用分光光度计测定图案膜在400nm的透过率。
4.表面收缩
使用高压汞灯用150mj/cm2的紫外光照射所得滤光片，然后用扫描电子显微镜(SEM)观察表面是否有小孔产生，如果表面没有小孔，说明无收缩，则是标记为“○”，如果表面有少量小孔，说明有少量收缩，则标记为“△”，如果表面有较多小孔说明表面收缩较严重，则标记为“×”。
由实施例5-12和对比例1-2的感光树脂组合物制得的滤光片的性能测试结果见表3。由表3可知，与由对比例1-2的感光树脂组合物制得的滤光片相比，由实施例5-12的感光性树脂组合物制得的滤光片的灵敏度、分辨率更为优异，尤其是透过率得到显著的提高。由于透过率的变化可以从一个侧面反应耐热性和耐光性，如果耐热性较差，在230°高温后烘时透过率会发生明显变化；本发明的透过率较优，也同时反映了其耐热性和耐光性也较好。也就是说，上述结果表面由包含本发明染料化合物的感光性树脂组合物能够获得具有耐热性与耐光性均优异、高透过率的滤光片，并且由此制备的滤光片不会有表面收缩。
表3滤光片的性能测试结果
比较项目 灵敏度(mj/cm2) 分辨率(μm) 透过率(％) 表面收缩
实施例5 150 3 15 ○
实施例6 150 3 30 ○
实施例7 150 3 30 ○
实施例8 150 3 15 ○
实施例9 150 3 30 ○
实施例10 150 3 30 ○
实施例11 150 3 25 ○
实施例12 150 3 40 ○
对比例1 150 3 20 ×
对比例2 150 3 10 ×
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (20)

  1. 一种染料化合物，其包含式1所示的重复单元、式2所示的重复单元和来自含有环氧官能团的烯属不饱和单体的重复单元；
    其中，式1和式2如下：
    Figure PCTCN2015095127-appb-100001
    其中，R1、R2、R3、R4、R5各自独立的表示氢原子、或具有1-12个碳原子的直链烷基、支链烷基、环烷基、芳香基中的任意一种；并且所述染料化合物的分子量为5000-20000。
  2. 如权利要求1所述的染料化合物，其特征在于，所述含有环氧官能团的烯属不饱和单体包括：甲基丙烯酸缩水甘油酯、丙烯酸缩水甘油酯、烯丙基缩水甘油醚中的一种或多种。
  3. 如权利要求1所述的染料化合物，其特征在于，所述染料化合物的分子量为8000-12000。
  4. 一种制备权利要求1-3任一项所述的染料化合物的方法，其包括以下步骤：
    1)制备酰胺化合物的步骤
    将含有酰氯的烯属不饱和单体与含有氨基的碱性染料反应得到的酰胺化合物；
    2)共聚合步骤
    将获得的所述酰胺化合物与含有环氧官能团的烯属不饱和单体、含有至少一个羧基或羧酸酐基团的烯属不饱和单体在溶剂中进行共聚合反应生成染料化合物。
  5. 如权利要求4所述的染料化合物的制备方法，其特征在于，在制备酰胺化合物步骤中所述含有氨基的碱性染料与含有酰氯的烯属不饱和单体的重量比为(0.5-4)∶1。
  6. 如权利要求4所述的染料化合物的制备方法，其特征在于，在制备酰胺化合物步骤中反应时间为2-5h，反应温度为0-20℃。
  7. 如权利要求4所述的染料化合物的制备方法，其特征在于，在所述共聚合步骤中酰胺化合物、含有至少一个羧基或羧酸酐基团的烯属不饱和单体、含有环氧官能团的烯属不饱和单体和溶剂的重量比为(2-6)∶(1-5)∶(1-5)∶(15-25)。
  8. 如权利要求4所述的染料化合物的制备方法，其特征在于，在所述共聚合步骤中共聚合反应的引发剂与含有环氧官能团的烯属不饱和单体和含有至少一个羧基或羧酸酐基团的烯属不饱和单体之和的比例为0.5％-5％。
  9. 如权利要求4所述的染料化合物的制备方法，其特征在于，在所述共聚合步骤中共聚反应的反应温度为95-105℃，反应时间1-5h。
  10. 如权利要求4所述的染料化合物的制备方法，其特征在于，所述的含有酰氯的烯属不饱和单体包括丙烯酰氯、甲基丙烯酰氯、N-羟乙基丙烯酰氯或N-羟乙基甲基丙烯酰氯中的一种或多种。
  11. 如权利要求4所述的染料化合物的制备方法，其特征在于，所述的含有氨基的碱性染料包括碱性蓝11、碱性蓝17、碱性蓝26，碱性红9、碱性红2，碱性紫2中的一种或多种。
  12. 如权利要求4所述的染料化合物的制备方法，其特征在于，所述含有环氧官能团的烯属不饱和单体包括甲基丙烯酸缩水甘油酯、丙烯酸缩水甘油酯、烯丙基缩水甘油醚中的一种或多种。
  13. 如权利要求4所述的染料化合物的制备方法，其特征在于，所述含有至少一个羧基或羧酸酐基团的烯属不饱和单体包括含有乙烯基团的一元羧酸及其脱水物、二元羧酸及其脱水物、多价羧酸及其脱水物。
  14. 如权利要求13所述的染料化合物的制备方法，其特征在于，所述含有乙烯基团的一元羧酸及其脱水物包括丙烯酸、甲基丙烯酸、丁烯酸、α-氯丙烯酸、肉桂酸及其脱水物中的任意一种；
    所述含有乙烯基团的二元羧酸包括马来酸、富马酸、衣康酸、柠康酸及其脱水物中的任意一种。
  15. 一种着色剂，其包含权利要求1-3任一项所述的染料化合物。
  16. 如权利要求15所述的着色剂，其特征在于，所述着色剂包括：
    染料化合物5-50重量份；
    颜料分散体5-50重量份。
  17. 一种感光树脂组合物，其包含权利要求1-3任一项所述的染料化合物。
  18. 如权利要求17所述的感光树脂组合物，其特征在于，该感光树脂组合物还包括颜料分散体。
  19. 如权利要求18所述的感光树脂组合物，其特征在于，该感光树脂组合物包括：
    染料化合物5-50重量份；
    颜料分散体5-50重量份；
    碱可溶性树脂5-60重量份；
    可聚合单体5-60重量份；
    光聚合引发剂0.1-10重量份；以及
    溶剂100-3000重量份。
  20. 一种滤光片，其是采用权利要求17-19任一项所述感光树脂组合物制备的。
PCT/CN2015/095127 2014-12-15 2015-11-20 染料化合物及其制备方法、着色剂、感光树脂组合物、滤光片 WO2016095659A1 (zh)

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EP3235840A4 (en) 2018-11-07

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