WO2022059619A1 - 樹脂組成物 - Google Patents
樹脂組成物 Download PDFInfo
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- WO2022059619A1 WO2022059619A1 PCT/JP2021/033351 JP2021033351W WO2022059619A1 WO 2022059619 A1 WO2022059619 A1 WO 2022059619A1 JP 2021033351 W JP2021033351 W JP 2021033351W WO 2022059619 A1 WO2022059619 A1 WO 2022059619A1
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- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- VRVDFJOCCWSFLI-UHFFFAOYSA-K trisodium 3-[[4-[(6-anilino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl]-5-methoxy-2-methylphenyl]diazenyl]naphthalene-1,5-disulfonate Chemical compound [Na+].[Na+].[Na+].COc1cc(N=Nc2cc(c3cccc(c3c2)S([O-])(=O)=O)S([O-])(=O)=O)c(C)cc1N=Nc1c(O)c2ccc(Nc3ccccc3)cc2cc1S([O-])(=O)=O VRVDFJOCCWSFLI-UHFFFAOYSA-K 0.000 description 1
- UJMBCXLDXJUMFB-UHFFFAOYSA-K trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4h-pyrazole-3-carboxylate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-UHFFFAOYSA-K 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000000984 vat dye Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 125000001834 xanthenyl group Chemical group C1=CC=CC=2OC3=CC=CC=C3C(C12)* 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
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- 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
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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
- C08F232/00—Copolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system
- C08F232/08—Copolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system having condensed rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0091—Complexes with metal-heteroatom-bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/22—Compounds containing nitrogen bound to another nitrogen atom
- C08K5/23—Azo-compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3415—Five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/5399—Phosphorus bound to nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/549—Silicon-containing compounds containing silicon in a ring
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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
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- G02B5/00—Optical elements other than lenses
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- G02B5/22—Absorbing filters
- G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
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- G—PHYSICS
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- 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
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- G—PHYSICS
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- 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
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- 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
- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
- G03F7/033—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1462—Coatings
- H01L27/14621—Colour filter arrangements
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/201—Filters in the form of arrays
Definitions
- the present invention relates to a resin composition, an optical filter, and a solid-state image sensor.
- Optical filters used in liquid crystal display devices, electroluminescence display devices, display devices such as plasma displays, and solid-state image pickup devices such as CCDs and CMOS sensors are manufactured from curable resin compositions.
- a curable resin composition a composition containing a phthalocyanine compound as a colorant is known (Patent Document 1).
- Patent Document 1 describes that the above composition can absorb near infrared rays and form a fine pattern.
- the heat resistance of the curable resin composition of Patent Document 1 is not sufficient, and when the resin composition is treated at a high temperature (for example, 120 ° C. or higher) for a predetermined time, the absorption rate of near infrared rays (700 nm to 3 ⁇ m) decreases. There was a case.
- the resin composition did not have a sufficiently high visible light transmittance. Therefore, it is an object of the present invention to provide a resin composition capable of improving at least one of heat resistance and visible light transmission, preferably both heat resistance and visible light transmission.
- the resin composition according to one embodiment of the present invention contains a colorant and a resin, and the colorant contains a compound represented by the formula (I), the formula (II), the formula (III), or the formula (IV). ..
- R x1 to R x4 independently represent a chain hydrocarbon group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or a heteroaryl group having 2 to 20 carbon atoms.
- -CH 2- contained in the chain hydrocarbon group may be substituted with -O-.
- the hydrogen atom contained in the chain hydrocarbon group may be substituted with a halogen atom.
- the aryl group and the hydrogen atom contained in the heteroaryl group may be independently substituted with a halogen atom, -OR 1 , -SR 1 , or -NR 2 R 3 .
- R 1 represents a hydrogen atom, a chain hydrocarbon group having 1 to 10 carbon atoms, an aryl group having 6 to 20 carbon atoms, or a heteroaryl group having 2 to 20 carbon atoms, and is included in the chain hydrocarbon group.
- -CH 2- may be substituted with -O- , -NR 2- , or -N + (R 2 R 3 ) X-, and the aryl group and the hydrogen atom contained in the heteroaryl group may be substituted.
- Each may be independently substituted with a halogen atom or a linear or branched alkoxy group having 1 to 20 carbon atoms.
- R 2 and R 3 each independently represent a hydrogen atom or a chain hydrocarbon group having 1 to 10 carbon atoms, even if -CH 2- contained in the hydrocarbon group is substituted with -O-.
- Well, or R 2 and R 3 are coupled to each other to form a ring.
- X represents a halogen atom, PF 6 , ClO 4 , or BF 4 .
- R y1 to R y4 in the formula (I) independently represent a chain hydrocarbon group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or a heteroaryl group having 2 to 20 carbon atoms.
- -CH 2- contained in the chain hydrocarbon group may be substituted with -O-.
- the hydrogen atom contained in the chain hydrocarbon group may be substituted with a halogen atom.
- the aryl group and the hydrogen atom contained in the heteroaryl group may be independently substituted with a halogen atom, -OR 1 , -SR 1 , or -NR 2 R 3 .
- Rings Z 1 and Z 2 in the formula (II) independently represent an aromatic hydrocarbon ring having 6 to 20 carbon atoms or a heteroaromatic ring having 2 to 20 carbon atoms.
- the aromatic hydrocarbon ring and the hydrogen atom contained in the heteroaromatic ring are replaced with a halogen atom, a chain hydrocarbon group having 1 to 20 carbon atoms, -OR 1 , -SR 1 , or -NR 2 R 3 . May have been When there are multiple R1 , R2 , or R3 , they may be the same or different.
- M 2 represents a divalent metal atom.
- R 1a to R 1d , R 2a to R 2d , R 3a to R 3d , and R 4a to R 4d are independently hydrogen atoms, halogen atoms, chain hydrocarbon groups having 1 to 20 carbon atoms, and -OR.
- R 1 represents a hydrogen atom, a chain hydrocarbon group having 1 to 10 carbon atoms, an aryl group having 6 to 20 carbon atoms, or a heteroaryl group having 2 to 20 carbon atoms, and is included in the chain hydrocarbon group.
- -CH 2- may be substituted with -O- , -NR 2- , or -N + (R 2 R 3 ) X-, and the aryl group and the hydrogen atom contained in the heteroaryl group may be substituted.
- Each may be independently substituted with a halogen atom or a linear or branched alkoxy group having 1 to 20 carbon atoms.
- R 2 and R 3 each independently represent a hydrogen atom or a chain hydrocarbon group having 1 to 10 carbon atoms, even if -CH 2- contained in the hydrocarbon group is substituted with -O-.
- Well, or R 2 and R 3 are coupled to each other to form a ring.
- X represents a halogen atom, PF 6 , ClO 4 , or BF 4 .
- RA1 and RA2 independently represent ⁇ OR4 , respectively .
- R4 represents a hydrogen atom, a chain hydrocarbon group having 1 to 10 carbon atoms, an aryl group having 6 to 20 carbon atoms, or a heteroaryl group having 2 to 20 carbon atoms, and is contained in the chain hydrocarbon group.
- -CH 2- may be replaced with -O- , -NR 5- , or -N + (R 5 R 6 ) X ---.
- R 5 and R 6 each independently represent a hydrogen atom or a chain hydrocarbon group having 1 to 10 carbon atoms. When there are multiple R1 , R2 , R3 , R5, or R6 , they may be the same or different.
- M 1 in formula (III) represents a tetravalent metal atom or a non-metal atom.
- M 3 in formula (IV) represents a pentavalent metal atom or a non-metal atom.
- Y ⁇ in formula (IV) represents a monovalent anion. ]
- the resin composition may further contain a polymerizable compound and a polymerization initiator.
- the resin is a single amount having a structural unit derived from at least one selected from the group consisting of unsaturated carboxylic acids and unsaturated carboxylic acid anhydrides, a cyclic ether structure having 2 to 4 carbon atoms, and an ethylenically unsaturated bond. It may be a copolymer containing a structural unit derived from a body.
- R x1 to R x4 may each independently represent an aryl group having 6 to 20 carbon atoms.
- R y1 to R y4 may each independently represent an aryl group having 6 to 20 carbon atoms.
- Ring Z 1 and ring Z 2 may independently represent an aromatic hydrocarbon ring having 6 to 20 carbon atoms.
- M 2 may represent Ru, Fe, Cu, Zn, Co, Ni, or Pd.
- R 1a to R 1d , R 2a to R 2d , R 3a to R 3d , and R 4a to R 4d may independently represent a hydrogen atom or -SR 1 .
- R4 may represent a hydrogen atom or a chain hydrocarbon group having 1 to 10 carbon atoms, and -CH 2- contained in the chain hydrocarbon group is -O-, -NR 5- , or-. It may be replaced with N + (R 5 R 6 ) X - -, and may be replaced with N + (R 5 R 6) X - -.
- M 1 may represent Si and may represent Si.
- M 3 may represent P.
- R x1 to R x4 may each independently represent an aryl group having 6 to 10 carbon atoms.
- R y1 to R y4 may each independently represent an aryl group having 6 to 10 carbon atoms.
- Ring Z 1 and ring Z 2 may each independently represent an aromatic hydrocarbon ring having 6 to 10 carbon atoms.
- M 2 may represent Ru,
- R 1 may represent an aryl group having 6 to 10 carbon atoms.
- R 4 may represent a hydrogen atom or a chain hydrocarbon group having 1 to 10 carbon atoms, and -CH 2- contained in the chain hydrocarbon group is -O- or -N + (R 5 R). 6 ) It may be replaced with X --- .
- the colorant may contain a compound represented by the formula (I) or the formula (II).
- the colorant may contain a compound represented by any of the following formulas.
- RA1 and RA2 represent -OCH 2 CH 2 OCH 2 CH 2 OCH 2 CH 3, -OCH 2 CH 2 N + (CH 3 ) 3 I- , or a hydroxyl group.
- the optical filter according to one embodiment of the present invention contains a cured product of the above resin composition.
- the solid-state image sensor according to one embodiment of the present invention includes the above optical filter.
- the resin composition according to one embodiment of the present invention is excellent in at least one of heat resistance and visible light transmission. Therefore, according to the present invention, it is possible to obtain an optical filter having improved heat resistance and visible light transmittance at least one of them.
- the cured product of the resin composition according to one embodiment of the present invention can be used as a near-infrared cut filter because it absorbs a specific wavelength in the near-infrared region while sufficiently transmitting visible light. Further, the cured product of the resin composition according to one embodiment of the present invention can be used as a near-infrared ray transmitting filter that transmits a specific wavelength in the near-infrared ray region.
- Me, Ph, Ts, and Pc represent a methyl group, a phenyl group, a tosyl group, and a phthalocyanine, respectively.
- the resin composition according to one embodiment of the present invention contains a colorant and a resin (hereinafter, may be referred to as a colorant (A) and a resin (B), respectively).
- the resin composition may be referred to as a polymerizable compound, a polymerization initiator, a solvent, and a leveling agent (hereinafter, the polymerizable compound (C), the polymerization initiator (D), the solvent (E), and the leveling agent (F), respectively. There may be more than one of).
- the compounds exemplified as the respective components may be used alone or in combination of a plurality of kinds, unless otherwise specified.
- the resin composition is preferably excellent in both heat resistance and visible light transmittance, and more preferably excellent in light resistance.
- the term "colorant” means a substance that absorbs a specific wavelength, and the range of the colorant includes, for example, a visible light absorber, an infrared absorber, a near-infrared absorber, and an ultraviolet absorber. Is done.
- the colorant (A) includes a compound represented by the formula (I), the formula (II), the formula (III), or the formula (IV) (hereinafter, may be referred to as the colorant (A1)).
- R x1 to R x4 independently have a chain hydrocarbon group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aryl group having 2 to 20 carbon atoms. Represents a heteroaryl group. R x1 to R x4 preferably represent an aryl group having 6 to 20 carbon atoms.
- a chain hydrocarbon group having 1 to 20 carbon atoms represented by R x1 to Rx4 one or more -CH 2- may be substituted with -O-, and one or more hydrogen atoms become halogen atoms. It may be replaced.
- the chain hydrocarbon group having 1 to 20 carbon atoms represented by R x1 to R x4 is, for example, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, or an s-butyl group.
- T-butyl group T-butyl group, n-pentyl group, n-hexyl group, n-heptyl group, 2-ethylhexyl group, n-octyl group, 2-ethylbutyl group, 3,3-dimethylbutyl group, 1,1,3 3-Tetramethylbutyl group, 1-methylbutyl group, 1-ethylpropyl group, 3-methylbutyl group, neopentyl group, 1,1-dimethylpropyl group, 2-methylpentyl group, 3-ethylpentyl group, 1,3- Dimethylbutyl group, 2-propylpentyl group, 1-ethyl-1,2-dimethylpropyl group, 1-methylpentyl group, 4-methylpentyl group, 4-methylhexyl group, 5-methylhexyl group, 2-ethylhexyl group , 1-Methylhexyl group, 1-ethyl
- the aryl group having 6 to 20 carbon atoms represented by R x1 to R x4 is preferably an aryl group having 6 to 18 carbon atoms, more preferably 6 to 12 carbon atoms, and further preferably 6 to 10 carbon atoms.
- one or more hydrogen atoms may be substituted with a halogen atom, -OR 1 , -SR 1 , or -NR 2 R 3 .
- R 1 is a hydrogen atom; 1 or more -CH 2- may be replaced with -O-, -NR 2- , or -N + (R 2 R 3 ) X -- , having 1 to 1 carbon atoms.
- 10 chain hydrocarbon groups an aryl group having 6 to 20 carbon atoms, wherein one or more hydrogen atoms may be substituted with a halogen atom or a linear or branched alkoxy group having 1 to 20 carbon atoms; Alternatively, it represents a heteroaryl group having 2 to 20 carbon atoms, wherein one or more hydrogen atoms may be substituted with a halogen atom or a linear or branched alkoxy group having 1 to 20 carbon atoms.
- R 1 is preferably an aryl group having 6 to 20 carbon atoms, more preferably an aryl group having 6 to 18 carbon atoms, still more preferably an aryl group having 6 to 12 carbon atoms, and particularly preferably an aryl group having 6 to 10 carbon atoms.
- R 1 is, for example, a phenyl group, a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, an s-butyl group, a t-butyl group, an n-pentyl group, n.
- R1 -Hexyl group, n-heptyl group, 2-ethylhexyl group, n-octyl group, phenyl group, o-tolyl group, m-tolyl group, p-tolyl group, 2,4-xylyl group, 2,6-xylyl group , 3,5-xylyl group, mesityl group, 1-naphthyl group, 2-naphthyl group, or 4-biphenyl group.
- R1 When there are a plurality of R1 , they may be the same or different.
- R 2 and R 3 each independently represent a hydrogen atom; or a chain hydrocarbon group having 1 to 10 carbon atoms in which one or more -CH 2- may be substituted with -O-.
- R 2 and R 3 are independently, for example, hydrogen atom, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, s-butyl group, t-butyl group, n-.
- R 2 and R 3 are coupled to each other to form a ring.
- the ring formed by R 2 and R 3 may be a ring containing a nitrogen atom, for example, a pyrrolidine ring, a piperidine ring, a morpholine ring, or the like.
- R 2 or R 3 may be the same or different.
- X is a halogen atom, PF 6 , ClO 4 , or BF 4 .
- the aryl group having 6 to 20 carbon atoms represented by R x1 to R x4 is, for example, a phenyl group, an o-tolyl group, an m-tolyl group, a p-tolyl group, a 2,4-kisilyl group, 2,6- Xyryl group, 3,5-xylyl group, mesityl group, 2-ethylphenyl group, 3-ethylphenyl group, 4-ethylphenyl group, 2- (n-propyl) phenyl group, 3- (n-propyl) phenyl group , 4- (n-propyl) phenyl group, 2-isopropylphenyl group, 3-isopropylphenyl group, 4-isopropylphenyl group, 2- (n-butyl) phenyl group, 3- (n-butyl) phenyl group, 4 -(N-butyl) phenyl group, 2- (s-but
- the aryl group is preferably a phenyl group, an o-tolyl group, an m-tolyl group, a p-tolyl group, a 2,4-xylyl group, a 2,6-xsilyl group, a 3,5-xsilyl group, a mesityl group, 4 -(T-butyl) phenyl group, 2-methoxyphenyl group, 3-methoxyphenyl group, or 4-methoxyphenyl group, more preferably phenyl group, o-tolyl group, m-tolyl group, p-tolyl. Group, 4- (t-butyl) phenyl group, 2-methoxyphenyl group, 3-methoxyphenyl group, or 4-methoxyphenyl group, more preferably a phenyl group.
- heteroaryl group having 2 to 20 carbon atoms represented by R x1 to Rx4 even if one or more hydrogen atoms are substituted with a halogen atom, -OR 1 , -SR 1 , or -NR 2 R 3 . good.
- R 1 to R 3 are as defined above.
- the heteroaryl group having 2 to 20 carbon atoms represented by R x1 to R x4 is, for example, 2-pyrrole group, 3-pyrrole group, 2-furanyl group, 3-furanyl group, 2-thiophenyl group, 3-thiophenyl.
- R y1 to R y4 independently represent a chain hydrocarbon group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or a heteroaryl group having 2 to 20 carbon atoms. .. R y1 to R y4 preferably represent an aryl group having 6 to 20 carbon atoms.
- a chain hydrocarbon group having 1 to 20 carbon atoms represented by R y1 to R y4 one or more -CH 2- may be substituted with -O-, and one or more hydrogen atoms become halogen atoms. It may be replaced.
- the chain hydrocarbon group having 1 to 20 carbon atoms represented by R y1 to R y4 is, for example, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, or an s-butyl group.
- T-butyl group T-butyl group, n-pentyl group, n-hexyl group, n-heptyl group, 2-ethylhexyl group, n-octyl group, 2-ethylbutyl group, 3,3-dimethylbutyl group, 1,1,3 3-Tetramethylbutyl group, 1-methylbutyl group, 1-ethylpropyl group, 3-methylbutyl group, neopentyl group, 1,1-dimethylpropyl group, 2-methylpentyl group, 3-ethylpentyl group, 1,3- Dimethylbutyl group, 2-propylpentyl group, 1-ethyl-1,2-dimethylpropyl group, 1-methylpentyl group, 4-methylpentyl group, 4-methylhexyl group, 5-methylhexyl group, 2-ethylhexyl group , 1-Methylhexyl group, 1-ethyl
- the aryl group having 6 to 20 carbon atoms represented by R y1 to R y4 is preferably an aryl group having 6 to 18 carbon atoms, more preferably 6 to 12 carbon atoms, and further preferably 6 to 10 carbon atoms.
- one or more hydrogen atoms may be substituted with a halogen atom, -OR 1 , -SR 1 , or -NR 2 R 3 .
- R 1 to R 3 are as defined above.
- the aryl group having 6 to 20 carbon atoms represented by R y1 to R y4 is, for example, a phenyl group, an o-tolyl group, an m-tolyl group, a p-tolyl group, a 2,4-kisilyl group, 2,6-.
- Xyryl group 3,5-xylyl group, mesityl group, 2-ethylphenyl group, 3-ethylphenyl group, 4-ethylphenyl group, 2- (n-propyl) phenyl group, 3- (n-propyl) phenyl group , 4- (n-propyl) phenyl group, 2-isopropylphenyl group, 3-isopropylphenyl group, 4-isopropylphenyl group, 2- (n-butyl) phenyl group, 3- (n-butyl) phenyl group, 4 -(N-butyl) phenyl group, 2- (s-butyl) phenyl group, 3- (s-butyl) phenyl group, 4- (s-butyl) phenyl group, 2- (t-butyl) phenyl group, 3 -(T-butyl) phenyl group, 4- (t-butyl) phenyl group
- the aryl group is preferably a phenyl group, an o-tolyl group, an m-tolyl group, a p-tolyl group, a 2,4-xylyl group, a 2,6-xsilyl group, a 3,5-xsilyl group, a mesityl group, 4 -(T-butyl) phenyl group, 2-methoxyphenyl group, 3-methoxyphenyl group, or 4-methoxyphenyl group, more preferably a phenyl group or a 4- (t-butyl) phenyl group, and further. It is preferably a 4- (t-butyl) phenyl group.
- heteroaryl group having 2 to 20 carbon atoms represented by R y1 to R y4 even if one or more hydrogen atoms are substituted with a halogen atom, -OR 1 , -SR 1 , or -NR 2 R 3 . good.
- R 1 to R 3 are as defined above.
- the heteroaryl group having 2 to 20 carbon atoms represented by R y1 to R y4 is, for example, a 2-pyrrole group, a 3-pyrrole group, a 2-furanyl group, a 3-furanyl group, a 2-thiophenyl group, or a 3-thiophenyl group.
- rings Z 1 and Z 2 independently represent an aromatic hydrocarbon ring having 6 to 20 carbon atoms or a heteroaromatic ring having 2 to 20 carbon atoms. Ring Z 1 and ring Z 2 are preferably aromatic hydrocarbon rings having 6 to 20 carbon atoms independently of each other.
- the aromatic hydrocarbon ring having 6 to 20 carbon atoms is preferably an aromatic hydrocarbon ring having 6 to 16 carbon atoms, more preferably 6 to 14 carbon atoms, and further preferably 6 to 10 carbon atoms.
- one or more hydrogen atoms may be substituted with a halogen atom, a chain hydrocarbon group having 1 to 20 carbon atoms, -OR 1 , -SR 1 , or -NR 2 R 3 . .. R 1 to R 3 are as defined above.
- the aromatic hydrocarbon ring having 6 to 20 carbon atoms is, for example, a benzene ring, a 2-methylbenzene ring, a 3-methylbenzene ring, a 2,5-dimethylbenzene ring, a 3,4-dimethylbenzene ring, or a 2-ethylbenzene ring.
- the aromatic hydrocarbon ring is preferably a benzene ring, a 2-methylbenzene ring, a 3-methylbenzene ring, a 2,5-dimethylbenzene ring, a 3,4-dimethylbenzene ring, a 2,5-diphenylbenzene ring, 3 , 4-Diphenylbenzene ring, or naphthalene ring, more preferably benzene ring, 2,5-dimethylbenzene ring, 3,4-dimethylbenzene ring, 2,5-diphenylbenzene ring, or 3,4-diphenyl. It is a benzene ring, more preferably a benzene ring.
- a heteroaromatic ring having 2 to 20 carbon atoms one or more hydrogen atoms are replaced with a halogen atom, a chain hydrocarbon group having 1 to 20 carbon atoms, -OR 1 , -SR 1 , or -NR 2 R 3 . It may have been.
- R 1 to R 3 are as defined above.
- the heteroaromatic ring having 2 to 20 carbon atoms is, for example, a furanyl ring, a benzofuranyl ring, a pyridyl ring, a pyrimidinyl ring, a pyrazinyl ring, a pyridadinyl ring, a thienyl ring, a benzothienyl ring, an oxazolyl ring, a benzoxazolyl ring, a thiazolyl ring.
- Benzodiazepine ring indrill ring, carbazolyl ring, acridinyl ring, imidazolyl ring, benzoimidazolyl ring, quinolyl ring, or isoquinolyl ring.
- M 2 represents a divalent metal atom. From the viewpoint of obtaining excellent optical properties and the availability of raw materials, M 2 is preferably Ru, Fe, Cu, Zn, Co, Ni, or Pd, and more preferably Ru.
- the compound represented by the formula (I) include the compound represented by the following formula.
- the compound represented by the following formula is a compound represented by the formula (I), in which R x1 to R x4 are phenyl groups and R y1 to R y4 are 4- (t-butyl) phenyl groups.
- M 2 is Ru, a compound.
- Such compounds may have an absorption maximum at, for example, 720 to 820 nm, or 760 to 780 nm.
- the compound represented by the formula (II) include the compound represented by the following formula.
- the compound represented by the following formula is a compound represented by the formula (II), in which R x1 to R x4 are phenyl groups, Z 1 and ring Z 2 are benzene rings, and M 2 is Ru. , A compound.
- Such compounds may have an absorption maximum at, for example, 700-760 nm, or 700-720 nm.
- R 1a to R 1d , R 2a to R 2d , R 3a to R 3d , and R 4a to R 4d may be collectively referred to as R 1a to R 4d ).
- (A) independently represent a hydrogen atom, a halogen atom, a chain hydrocarbon group having 1 to 20 carbon atoms, -OR 1 , -SR 1 , or -NR 2 R 3 .
- R 1 to R 3 are as defined above.
- the halogen atom represented by R 1a to R 4d may be, for example, fluorine, chlorine, bromine, or iodine.
- the chain hydrocarbon group having 1 to 20 carbon atoms represented by R 1a to R 4d is, for example, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, or an s-butyl group.
- T-butyl group T-butyl group, n-pentyl group, n-hexyl group, n-heptyl group, 2-ethylhexyl group, n-octyl group, 2-ethylbutyl group, 3,3-dimethylbutyl group, 1,1,3 3-Tetramethylbutyl group, 1-methylbutyl group, 1-ethylpropyl group, 3-methylbutyl group, neopentyl group, 1,1-dimethylpropyl group, 2-methylpentyl group, 3-ethylpentyl group, 1,3- Dimethylbutyl group, 2-propylpentyl group, 1-ethyl-1,2-dimethylpropyl group, 1-methylpentyl group, 4-methylpentyl group, 4-methylhexyl group, 5-methylhexyl group, 2-ethylhexyl group , 1-Methylhexyl group, 1-ethyl
- At least one of R 1a to R 4d represents -SR 1 .
- R 1a , R 1d , R 2a , R 2d , R 3a , R 3d , R 4a , and R 4d represent ⁇ SR 1 , R 1b , R 1c , R 2b , R 2c , R 3b , R. 3c , R 4b , and R 4c represent a hydrogen atom.
- -SR 1 is preferably -SPh.
- RA1 and RA2 each independently represent ⁇ OR 4 .
- R4 represents a hydrogen atom, a chain hydrocarbon group having 1 to 10 carbon atoms, an aryl group having 6 to 20 carbon atoms, or a heteroaryl group having 2 to 20 carbon atoms.
- R4 is preferably a hydrogen atom or a chain hydrocarbon group having 1 to 10 carbon atoms.
- one or more -CH 2- is -O-, -NR 5- , or -N + (R 5 R 6 ) X --- . It may be replaced with.
- R 5 and R 6 each independently represent a hydrogen atom or a chain hydrocarbon group having 1 to 10 carbon atoms.
- R 5 and R 6 are, for example, independently methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, s-butyl group, t-butyl group, n-pentyl group, n.
- -It may be a hexyl group, an n-heptyl group, a 2-ethylhexyl group, or an n-octyl group.
- R5 or R6 may be the same or different.
- One or more -CH 2- represented by R 4 may be replaced with -O- , -NR 5- , or -N + (R 5 R 6 ) X --- having 1 to 10 carbon atoms.
- the chain hydrocarbon group includes, for example, a methyl group, -CH 2 CH 2 OCH 3 , -CH 2 CH 2 OCH 2 CH 3 , -CH 2 CH 2 OCH 2 CH 2 OCH 3 , -CH 2 CH 2 OCH 2 CH.
- M 1 represents a tetravalent metal atom or a non-metal atom.
- M 1 may be, for example, Si, Ge, or Sn. From the viewpoint of obtaining excellent optical characteristics, M 1 is preferably Si.
- M 3 represents a pentavalent metal atom or a non-metal atom.
- M 3 may be, for example, P, As, or Sb. From the viewpoint of obtaining excellent optical characteristics, M 3 is preferably P.
- Y ⁇ represents a monovalent anion.
- Y ⁇ is not particularly limited, and may be, for example, a halide ion, a hexafluorophosphate ion, a perchlorate ion, a tetrafluoroborate ion, a benzenesulfonate ion, or a p-toluenesulfonic acid ion.
- the compound represented by the formula (III) include the compound represented by the following formula.
- the compound represented by the following formula is a compound represented by the formula (III), in which R 1a , R 1d , R 2a , R 2d , R 3a , R 3d , R 4a , and R 4d are -SPh.
- R 1b , R 1c , R 2b , R 2c , R 3b , R 3c , R 4b , and R 4c are hydrogen atoms and M 1 is Si, a compound.
- RA1 and RA2 are any of the groups represented by the following formula.
- the compound of the above formula in which RA1 and RA2 are ⁇ OCH 2 CH 2 OCH 2 CH 2 OCH 2 CH 3 may have an absorption maximum at, for example, 730 to 890 nm or 780 to 840 nm.
- the compound of the above formula in which RA1 and RA2 are ⁇ OCH 2 CH 2 N + (CH 3 ) 3 I ⁇ may have an absorption maximum at, for example, 730 to 950 nm or 770 to 830 nm.
- the compound represented by the formula (IV) include the compound represented by the following formula.
- the compound represented by the following formula is a compound represented by the formula (IV), and R 1a , R 1d , R 2a , R 2d , R 3a , R 3d , R 4a , and R 4d are -SPh.
- R 1b , R 1c , R 2b , R 2c , R 3b , R 3c , R 4b , and R 4c are hydrogen atoms
- RA 1 and RA 2 are methoxy groups
- M 3 is P. Is.
- Such compounds may have an absorption maximum at, for example, 965 to 1065 nm, or 980 to 1050 nm.
- the compound represented by the formula (I), the formula (II), the formula (III), or the formula (IV) is a compound that absorbs near infrared rays having a specific wavelength and transmits visible light.
- near infrared rays refer to light having a wavelength of 700 nm to 3 ⁇ m.
- the compound represented by the formula (I), the formula (II), the formula (III), or the formula (IV) preferably has an absorption maximum of 700 nm to 2500 nm, more preferably 700 nm to 1500 nm, and further preferably 700 nm to 1300 nm. Have.
- the compound represented by the formula (I) may have an absorption maximum at, for example, 720 to 820 nm or 760 to 780 nm.
- the compound represented by the formula (II) may have an absorption maximum at, for example, 700 to 760 nm or 700 to 720 nm.
- the compound represented by the formula (III) may have an absorption maximum at, for example, 730 to 890 nm, 780 to 840 nm, 730 to 950 nm, or 770 to 830 nm.
- the compound represented by the formula (IV) may have an absorption maximum at, for example, 965 to 1065 nm or 980 to 1050 nm.
- the average value of the transmittance of the compound represented by the formula (I), the formula (II), the formula (III), or the formula (IV) at 450 nm to 650 nm (that is, visible light) is, for example, 98.0% or more. It is preferably 98.3% or more, 98.5% or more, or 99.0% or more.
- the transmittance was measured using a V-770 (ultraviolet visible near infrared spectrophotometer) manufactured by JASCO Corporation at a measurement wavelength of 300 to 1400 nm and a measurement interval of 5.0 nm. The transmittance was measured after the reference measurement on the glass substrate.
- the colorant (A1) is preferably a compound represented by the formula (I) or the formula (II).
- the content of the colorant (A1) is preferably 20 to 100% by mass, more preferably 30 to 100% by mass, still more preferably 40 to 100% by mass, based on the total amount of the colorant (A).
- the content of the colorant (A1) is 0.5 to 60% by mass, 0.9 to 60% by mass, 2 to 60% by mass, 4 to 55% by mass, or 6 in the total solid content of the resin composition. It may be up to 50% by mass.
- total amount of solids refers to the total amount of components of the resin composition excluding the solvent. The total amount of solid content and the content of each component relative to the total amount can be measured by a known analytical means such as liquid chromatography and gas chromatography.
- the colorant (A) may further contain a colorant different from the colorant (A1) (hereinafter, also referred to as a colorant (A2)).
- the colorant (A2) may be a dye or a pigment.
- dyes examples include compounds classified as having a hue other than pigments in the Color Index (published by The Society of Dyers and Colorists), and known dyes described in Dyeing Note (Color Dyeing Co., Ltd.). Can be mentioned.
- a xanthene dye is preferable.
- the xanthene dye is a dye containing a compound having a xanthene skeleton.
- the xanthene dye include C.I. I. Acid Red 51, 52, 87, 92, 94, 289, and 388; C.I. I. Acid Violet 9, 30, and 102; C.I. I. Basic Red 1 (Rhodamine 6G), 2, 3, 4, 8, 10, and 11; C.I. I. Basic Violet 10 (Rhodamine B) and 11; C.I. I. Solvent Red 218; C.I. I. Modant Red 27; C.I. I.
- Reactive Red 36 (Rose Bengal B); Sulforhodamine G; xanthene dyes described in JP-A-2010-322999; and xanthene dyes described in Japanese Patent No. 4492760;
- the xanthene dye is preferably a xanthene dye that dissolves in an organic solvent.
- xanthene dye commercially available xanthene dyes such as "Chugai Aminol Fast Pink R-H / C” manufactured by Chugai Pharmaceutical Co., Ltd. and “Rhodamine 6G” manufactured by Taoka Chemical Industry Co., Ltd. can be used. Further, as the xanthene dye, a xanthene dye synthesized by the method described in JP-A-2010-32299 can also be used, using a commercially available xanthene dye as a starting material.
- dyes include known azo dyes, cyanine dyes, triphenylmethane dyes, thiazole dyes, oxadin dyes, phthalocyanine dyes, quinophthalone dyes, anthraquinone dyes, naphthoquinone dyes, quinoneimine dyes, methine dyes, azomethine dyes, squarylium dyes, and acridin dyes. , Styryl dyes, coumarin dyes, quinoline dyes, nitro dyes and the like may be used. Examples of such dyes include C.I. I. Solvent dye, C.I. I. Acid dye, C.I. I. Direct dye, C.I. I. Disperse dye, C.I. I. Basic dyes, C.I. I. Reactive dye, C.I. I. Mordant dyes, and C.I. I. Vat dyes can be mentioned.
- the solvent dye examples include C.I. I. Solvent Yellow 4, 14, 15, 23, 24, 38, 62, 63, 68, 82, 94, 98, 99, 117, 162, 163, 167, and 189; C.I. I. Solvent Red 45, 49, 111, 125, 130, 143, 145, 146, 150, 151, 155, 168, 169, 172, 175, 181, 207, 222, 227, 230, 245, and 247; C.I. I. Solvent Orange 2, 7, 11, 15, 26, 56, 77, and 86; C.I. I. Solvent Violet 11, 13, 14, 26, 31, 36, 37, 38, 45, 47, 48, 51, 59, and 60; C.I. I.
- Solvent Blue 4 5, 14, 18, 35, 36, 37, 45, 58, 59, 59: 1, 63, 67, 68, 69, 70, 78, 79, 83, 90, 94, 97, 98, 100, 101, 102, 104, 105, 111, 112, 122, 128, 132, 136, and 139; and C.I. I. Examples include solvent greens 1, 3, 4, 5, 7, 28, 29, 32, 33, 34, and 35.
- the acid dye examples include C.I. I. Acid Yellow 1, 3, 7, 9, 11, 17, 23, 25, 29, 34, 36, 38, 40, 42, 54, 65, 72, 73, 76, 79, 98, 99, 111, 112, 113, 114, 116, 119, 123, 128, 134, 135, 138, 139, 140, 144, 150, 155, 157, 160, 161, 163, 168, 169, 172, 177, 178, 179, 184, 190, 193, 196, 197, 199, 202, 203, 204, 205, 207, 212, 214, 220, 221, 228, 230, 232, 235, 238, 240, 242, 243, and 251; C.I.
- Examples of the direct dye include C.I. I. Direct Yellow 2, 33, 34, 35, 38, 39, 43, 47, 50, 54, 58, 68, 69, 70, 71, 86, 93, 94, 95, 98, 102, 108, 109, 129, 136, 138, and 141; C.I. I.
- C.I. I. Direct Orange 26, 34, 39, 41, 46, 50, 52, 56, 57, 61, 64, 65, 68, 70, 96, 97, 106, and 107; C.I. I.
- disperse dye examples include C.I. I. Disperse Yellow 51, 54, and 76; C.I. I. Disperse Violet 26 and 27; and C.I. I. Disperse Blue 1, 14, 56, and 60 can be mentioned.
- Examples of the basic dye include C.I. I. Basic Blue 1, 3, 5, 7, 9, 19, 21, 22, 24, 25, 26, 28, 29, 40, 41, 45, 47, 54, 58, 59, 60, 64, 65, 66, 67, 68, 81, 83, 88, and 89; C.I. I. Basic Violet 2; C.I. I. Basic Red 9; and C.I. I. Basic green 1 can be mentioned.
- C. I. Examples of the reactive dye include C.I. I. Reactive Yellow 2, 76, and 116; C.I. I. Reactive Orange 16; and C.I. I. Reactive Red 36 can be mentioned.
- C. I. Examples of the modern dye include C.I. I. Modant Yellow 5, 8, 10, 16, 20, 26, 30, 31, 33, 42, 43, 45, 56, 61, 62, and 65; C.I. I. Modant tread 1, 2, 3, 4, 9, 11, 12, 14, 17, 18, 19, 22, 23, 24, 25, 26, 29, 30, 32, 33, 36, 37, 38, 39 , 41, 42, 43, 45, 46, 48, 52, 53, 56, 62, 63, 71, 74, 76, 78, 85, 86, 88, 90, 94, and 95; C.I. I. Modant Orange 3, 4, 5, 8, 12, 13, 14, 20, 21, 23, 24, 28, 29, 32, 34, 35, 36, 37, 42, 43, 47, and 48; C.I. I.
- Modant Violet 1, 1 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 27, 28 , 30, 31, 32, 33, 36, 37, 39, 40, 41, 44, 45, 47, 48, 49, 53, and 58; C.I. I. Modant Blue 1,2,3,7,8,9,12,13,15,16,19,20,21,22,23,24,26,30,31,32,39,40,41,43 , 44, 48, 49, 53, 61, 74, 77, 83, and 84; and C.I. I. Modant Greens 1, 3, 4, 5, 10, 13, 15, 19, 21, 23, 26, 29, 31, 33, 34, 35, 41, 43, and the like.
- bat dye examples include C.I. I. Bat green 1 can be mentioned.
- pigments classified as pigments in the Color Index (The Society of Dyers and Colorists Publishing).
- Examples of the pigment include a green pigment, a yellow pigment, an orange pigment, a red pigment, a blue pigment, and a purple pigment.
- Examples of the green pigment include C.I. I. Pigment Greens 7, 36, and 58.
- As the yellow pigment C.I. I. Pigment Yellow 1, 3, 12, 13, 14, 15, 16, 17, 20, 24, 31, 53, 83, 86, 93, 94, 109, 110, 117, 125, 128, 129, 137, 138, 139, 147, 148, 150, 153, 154, 166, 173, 185, 194, and 214.
- Examples of the orange pigment include C.I. I.
- C.I. I. Pigment Red 9 97, 105, 122, 123, 144, 149, 166, 168, 176, 177, 180, 192, 209, 215, 216, 224, 242, 254, 255, 264, and 265.
- As the purple pigment C.I. I. Pigment Violet 1, 19, 23, 29, 32, 36, and 38.
- One kind of pigment or a plurality of pigments may be used for each color, or a plurality of color pigments may be combined.
- the pigment is treated with a rosin, a surface treatment using a pigment derivative having an acidic group or a basic group introduced therein, a graft treatment on the pigment surface with a polymer compound, a atomization treatment by a sulfuric acid atomization method, or the like.
- a cleaning treatment with an organic solvent or water for removing impurities, a treatment for removing ionic impurities by an ion exchange method, or the like may be performed.
- the particle size of the pigment is preferably substantially uniform.
- the pigment can be made into a pigment dispersion in a state of being uniformly dispersed in the pigment dispersant solution by containing a pigment dispersant and performing a dispersion treatment.
- the pigments may be individually dispersed or a plurality of types of pigments may be mixed and dispersed.
- the amount used is preferably 10 parts by mass or more and 200 parts by mass or less, more preferably 15 parts by mass or more and 180 parts by mass or less, and further preferably 20 parts by mass with respect to 100 parts by mass of the pigment. More than parts and less than 160 parts by mass.
- the amount of the pigment dispersant used is within the above range, when two or more kinds of pigments are used, a pigment dispersion liquid in which the pigments are more uniformly dispersed tends to be obtained.
- the content of the colorant (A2) is preferably 1 to 80% by mass, more preferably 1 to 70% by mass, based on the total amount of the colorant (A). , More preferably 1 to 60% by mass.
- the content of the colorant (A) in the resin composition is, for example, 0.5% by mass or more, 70% by mass or less, 0.9% by mass or more, 70% by mass or less, 1 with respect to the total amount of solid content. It may be 7% by mass or more, 70% by mass or less, 2% by mass or more, 65% by mass or less, 5% by mass or more, 60% by mass or less, or 7% by mass or more and 55% by mass or less. When the content of the colorant (A) is within the above range, it becomes easier to obtain the desired spectral characteristics.
- the resin (B) is not particularly limited, but is preferably an alkali-soluble resin.
- the resin (B) include the following resins [K1] to [K6]: A structural unit derived from at least one (a) (hereinafter sometimes referred to as "(a)") selected from the group consisting of unsaturated carboxylic acids and unsaturated carboxylic acid anhydrides, and cyclic ethers having 2 to 4 carbon atoms.
- Resin [K1] which is a copolymer having a structural unit derived from a monomer (b) having a structure and an ethylenically unsaturated bond (hereinafter, may be referred to as “(b)”), and a structural unit.
- a resin [K2] which is a copolymer having a structural unit derived from (sometimes referred to as "(c)"
- a resin [K3] which is a copolymer having a structural unit derived from (a) and a structural unit derived from (c)
- a resin [K4] which is a copolymer having a structural unit derived from (a) with (b) added and a structural unit derived from (c)
- Resin [K5] which is a copolymer having a structural unit obtained by adding (a) to a structural unit derived from (b) and a structural unit derived from (c); or a structure derived from (b).
- a resin [K6] which is a copolymer having a structural unit in which (a) is added to the unit and a carboxylic acid anhydride is further added, and a structural unit derived from (c).
- the resin (B) has a structural unit derived from at least one selected from the group consisting of unsaturated carboxylic acids and unsaturated carboxylic acid anhydrides, a cyclic ether structure having 2 to 4 carbon atoms, and ethylenically unsaturated. It is preferably a copolymer having a structural unit derived from a monomer having a bond (that is, resin K1 or K2), and more preferably resin K2.
- (a) examples include unsaturated monocarboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, o-, m-, and p-vinylbenzoic acid; maleic acid, fumaric acid, and citraconic acid.
- unsaturated monocarboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, o-, m-, and p-vinylbenzoic acid
- maleic acid fumaric acid
- citraconic acid examples include unsaturated monocarboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, o-, m-, and p-vinylbenzoic acid.
- Unsaturated compounds maleic anhydride, citraconic acid anhydride, itaconic acid anhydride, 3-vinylphthalic acid anhydride, 4-vinylphthalic acid anhydride, 3,4,5,6-tetrahydrophthalic acid anhydride, 1,2, Unsaturated dicarboxylic acid anhydrides such as 3,6-tetrahydrophthalic anhydride, dimethyltetrahydrophthalic anhydride, 5,6-dicarboxybicyclo [2.2.1] hept-2-eneanhydride; monosuccinate Anhydride mono [(meth) acryloyloxyalkyl] ester of a polyvalent carboxylic acid having a valence of 2 or more such as [2- (meth) acryloyloxyethyl] and mono-phthalate [2- (meth) acryloyloxyethyl]; ⁇ - Examples thereof include unsaturated acrylates containing a hydroxy group and a carboxy group, such as (hydroxymethyl)
- the cyclic ether structure having 2 to 4 carbon atoms contained in the monomer (b) may be at least one selected from the group consisting of, for example, an oxylan ring, an oxetane ring and a tetrahydrofuran ring.
- (B) preferably has a cyclic ether having 2 to 4 carbon atoms and a (meth) acryloyloxy group.
- (meth) acrylic acid represents at least one selected from the group consisting of acrylic acid and methacrylic acid
- (meth) acryloyl” is selected from the group consisting of acryloyl and metaacryloyl.
- the term "(meth) acrylate” represents at least one selected from the group consisting of acrylate and methacrylic acid.
- (B) is, for example, a monomer (b1) having an oxylanyl group and an ethylenically unsaturated bond (hereinafter sometimes referred to as “(b1)”), or a single amount having an oxetanyl group and an ethylenically unsaturated bond.
- a body (b2) hereinafter sometimes referred to as "(b2)”
- a monomer (b3) having a tetrahydrofuryl group and an ethylenically unsaturated bond (hereinafter sometimes referred to as "(b3)”). It's okay.
- (B1) may be, for example, a monomer (b1-1) having a structure in which a linear or branched aliphatic unsaturated hydrocarbon is epoxidized (hereinafter referred to as “(b1-1)”). There is), or a monomer (b1-2) having an epoxidized structure of alicyclic unsaturated hydrocarbon (hereinafter, may be referred to as “(b1-2)”).
- Examples of (b1-1) include glycidyl (meth) acrylate, ⁇ -methylglycidyl (meth) acrylate, ⁇ -ethylglycidyl (meth) acrylate, glycidyl vinyl ether, o-vinylbenzyl glycidyl ether, and m-vinylbenzyl glycidyl ether.
- Examples of (b1-2) include vinylcyclohexene monooxide, 1,2-epoxy-4-vinylcyclohexane (for example, Celoxide 2000, manufactured by Daicel Co., Ltd.), and 3,4-epoxycyclohexylmethyl (meth) acrylate (for example).
- Cyclomer A400 manufactured by Daicel Co., Ltd.
- 3,4-epoxycyclohexylmethyl (meth) acrylate for example, Cyclomer M100, manufactured by Daicel Co., Ltd.
- 3,4-epoxytricyclo [5.2.1.0 2,6 ] decyl (meth) acrylate and 3,4-epoxytricyclo [5.2.1.0 2,6 ] decyloxyethyl (meth) acrylate can be mentioned.
- a monomer having an oxetanyl group and a (meth) acryloyloxy group is preferable, and as such (b2), for example, 3-methyl-3-methacrylloyloxymethyloxetane, 3-methyl -3-Acryloyloxymethyloxetane, 3-ethyl-3-methacryloyloxymethyloxetane, 3-ethyl-3-acryloyloxymethyloxetane, 3-methyl-3-methacryloyloxyethyloxetane, 3-methyl-3-acryloyloxyethyl Examples thereof include oxetane, 3-ethyl-3-methacryloyloxyethyl oxetane, and 3-ethyl-3-acryloyloxyethyl oxetane.
- a monomer having a tetrahydrofuryl group and a (meth) acryloyloxy group is preferable, and as such (b3), for example, tetrahydrofurfuryl acrylate (for example, Viscort V # 150, Osaka Organic Chemistry) (Manufactured by Kogyo Co., Ltd.), and tetrahydrofurfuryl methacrylate.
- tetrahydrofurfuryl acrylate for example, Viscort V # 150, Osaka Organic Chemistry
- (B) is preferably (b1) from the viewpoint of increasing the reliability of the heat resistance, chemical resistance, etc. of the optical filter. Further, from the viewpoint of obtaining a resin composition having excellent storage stability, (b) is more preferably (b1-2).
- Examples of (c) include methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth) acrylate, sec-butyl (meth) acrylate, tert-butyl (meth) acrylate, and 2-ethylhexyl (meth).
- Tricyclo [5.2.1.0 2,6 ] decene-8-yl (meth) acrylate (in the art, it is commonly referred to as "dicyclopentenyl (meth) acrylate”.
- Dicyclopentanyloxyethyl (meth) acrylate isobornyl (meth) acrylate, adamantyl (meth) acrylate, allyl (meth) acrylate, propargyl (meth) acrylate, phenyl (meth) acrylate, naphthyl (meth) acrylate, benzyl (Meta) acrylic acid esters such as (meth) acrylate; Hydroxy group-containing (meth) acrylic acid esters such as 2-hydroxyethyl (meth) acrylate and 2-hydroxypropyl (meth) acrylate; Dicarboxylic acid diesters such as diethyl maleate, diethyl fumarate, and diethyl itaconic acid; Bicyclo
- styrene vinyltoluene
- N-phenylmaleimide N-cyclohexylmaleimide
- N-benzylmaleimide or bicyclo [2.2.1] hept-2-ene is selected from the viewpoint of copolymerization reactivity and heat resistance. preferable.
- the structural unit derived from (a) is 2 to 60 mol%, and The structural unit derived from (b) is 40 to 98 mol%. Is preferable The structural unit derived from (a) is 10 to 50 mol%, and The structural unit derived from (b) is 50 to 90 mol%. Is more preferable.
- the ratio of each structural unit of the resin [K1] is within the above range, the storage stability of the resin composition, the developability when forming a coloring pattern described later, and the solvent resistance of the optical filter tend to be excellent. ..
- the resin [K1] is, for example, the method described in the document "Experimental Method for Polymer Synthesis” (written by Takayuki Otsu, published by Kagaku Dojin Co., Ltd., 1st edition, 1st print, published on March 1, 1972). It can be manufactured with reference to the literature cited in the literature.
- Specific examples thereof include a method in which predetermined amounts of (a) and (b), a polymerization initiator, a solvent and the like are placed in a reaction vessel and heated and kept warm while stirring in a nitrogen atmosphere, for example.
- the polymerization initiator, solvent and the like used here are not particularly limited, and polymerization initiators, solvents and the like usually used in the art can be used.
- the polymerization initiator an azo compound (2,2'-azobisisobutyronitrile, 2,2'-azobis (2,4-dimethylvaleronitrile), etc.) or an organic peroxide (benzoyl peroxide, etc.) can be mentioned.
- the solvent is not particularly limited as long as it dissolves the monomer, and for example, a solvent described later can be used as the solvent (E) of the resin composition.
- the structural unit derived from (a) is 2 to 45 mol%.
- the structural unit derived from (b) is 2 to 95 mol%, and the structural unit derived from (c) is 1 to 65 mol%. Is preferable
- the structural unit derived from (a) is 5 to 40 mol%, and the structural unit is 5 to 40 mol%.
- the structural unit derived from (b) is 5 to 80 mol%, and
- the structural unit derived from (c) is 5 to 60 mol%. Is more preferable.
- the resin [K2] can be produced by the same method as the resin [K1] except that (a), (b), and (c) are used instead of (a) and (b), for example.
- the structural unit derived from (a) is 2 to 60 mol%, and the structural unit derived from (c) is 40 to 98 mol%. Is preferable
- the structural unit derived from (a) is 10 to 50 mol%, and the structural unit derived from (c) is 50 to 90 mol%. Is more preferable.
- the resin [K3] can be produced by the same method as the resin [K1] except that (a) and (c) are used instead of (a) and (b), for example.
- the resin [K4] obtains a copolymer of (a) and (c), and converts the cyclic ether having 2 to 4 carbon atoms of (b) into the carboxylic acid and / or carboxylic acid anhydride of (a). It can be manufactured by adding it.
- the copolymer of (a) and (c) is produced by the same method as that of the resin [K3]. It is preferable that the ratio of the structural unit derived from (a) and the structural unit derived from (c) is the same as that of the resin [K3].
- the cyclic ether having 2 to 4 carbon atoms of (b) is reacted with a part of the carboxylic acid and / or the carboxylic acid anhydride derived from (a) in the copolymer.
- the atmosphere in the flask is replaced with air from nitrogen, and (b) the reaction of the carboxylic acid or carboxylic acid anhydride with the cyclic ether.
- a catalyst for example, tris (dimethylaminomethyl) phenol, etc.), a polymerization inhibitor (for example, hydroquinone, etc.) and the like are placed in a flask and reacted at, for example, 60 to 130 ° C. for 1 to 10 hours to cause the resin [K4].
- the charging method, reaction temperature, reaction time, and other reaction conditions can be appropriately adjusted in consideration of the production equipment, the calorific value of the polymerization, and the like.
- the amount of (b) used is preferably 5 to 80 mol, more preferably 10 to 75 mol, with respect to 100 mol of (a).
- amount of (b) used in this range By setting the amount of (b) used in this range, the storage stability of the resin composition, the developability when forming a coloring pattern, and the balance between the solvent resistance, heat resistance, mechanical strength and sensitivity of the optical filter Tends to be good. Since the reactivity of the cyclic ether is high and the unreacted (b) is unlikely to remain, (b1) is preferable as the (b) used for the resin [K4], and (b1-1) is more preferable.
- the amount of the reaction catalyst used is preferably 0.001 to 5 parts by mass with respect to 100 parts by mass of the total amount of (a), (b) and (c).
- the amount of the polymerization inhibitor used is preferably 0.001 to 5 parts by mass with respect to 100 parts by mass of the total amount of (a), (b) and (c).
- the resin [K5] can be produced by the same method as the resin [K4] except that (b) is used instead of (a) and (a) is used instead of (b). That is, first, a copolymer of (b) and (c) is obtained, and then the cyclic ether derived from (b) of the copolymer of (b) and (c) is added to (a). Resin K5 can be obtained by reacting the derived carboxylic acid or carboxylic acid anhydride. However, the ratio of the structural unit derived from (b) and the structural unit derived from (c) is based on the total number of moles of all the structural units constituting the above-mentioned copolymer.
- the structural unit derived from (b) is 5 to 95 mol%, and the structural unit derived from (c) is 5 to 95 mol%. Is preferable
- the structural unit derived from (b) is 10 to 90 mol%, and the structural unit derived from (c) is 10 to 90 mol%. Is more preferable.
- the amount of (a) used for reacting with the above-mentioned copolymer is preferably 5 to 80 mol with respect to 100 mol of (b). Since the reactivity of the cyclic ether is high and the unreacted (b) is unlikely to remain, (b1) is preferable as the (b) used for the resin [K5], and (b1-1) is more preferable.
- the resin [K6] is a resin obtained by further reacting the resin [K5] with a carboxylic acid anhydride. Specifically, the carboxylic acid anhydride is reacted with the hydroxy group generated by the reaction between the cyclic ether derived from (b) and the carboxylic acid or the carboxylic acid anhydride derived from (a).
- carboxylic acid anhydride examples include maleic anhydride, citraconic acid anhydride, itaconic acid anhydride, 3-vinylphthalic anhydride, 4-vinylphthalic anhydride, 3,4,5,6-tetrahydrophthalic anhydride, 1 , 2,3,6-tetrahydrophthalic anhydride, dimethyltetrahydrophthalic anhydride, 5,6-dicarboxybicyclo [2.2.1] hept-2-ene anhydride and the like.
- the amount of the carboxylic acid anhydride used is preferably 0.5 to 1 mol with respect to 1 mol of the amount used in (a).
- Specific resin (B) includes 3,4-epoxycyclohexylmethyl (meth) acrylate / (meth) acrylic acid copolymer and 3,4-epoxytricyclo [5.2.1.0 2.6 ] decyl acrylate.
- the resin [K2] may be, for example, benzyl methacrylate / acrylic acid / 3,4-epoxytricyclo [5.2.1.0 2,6 ] decane-8-ylacrylate / 3,4-epoxytricyclo [5. 2.1.0 2,6 ] Decane-9-yl acrylate copolymer may be used.
- This copolymer has a structural unit represented by the following formula.
- the resin [K4] may be, for example, a resin obtained by adding glycidyl methacrylate to a tricyclodecyl methacrylate / benzyl methacrylate / methacrylic acid copolymer.
- the polystyrene-equivalent weight average molecular weight of the resin (B) is preferably 3,000 to 100,000, more preferably 5,000 to 50,000, and even more preferably 5,000 to 30,000.
- the molecular weight is within the above range, the hardness of the optical filter is improved, the residual film ratio is high, the solubility of the unexposed portion in the developing solution is good, and the resolution of the coloring pattern tends to be improved.
- the degree of dispersion [weight average molecular weight (Mw) / number average molecular weight (Mn)] of the resin (B) is preferably 1.1 to 6, and more preferably 1.2 to 4.
- the acid value of the resin (B) is preferably 50 to 170 mg-KOH / g, more preferably 60 to 150 mg-KOH / g, and even more preferably 70 to 135 mg-KOH / g in terms of solid content.
- the acid value is the amount (mg) of potassium hydroxide required to neutralize 1 g of the resin (B), and can be determined, for example, by titration using an aqueous potassium hydroxide solution.
- the content of the resin (B) is, for example, 7 to 99% by mass, 53 to 99% by mass, 7 to 65% by mass, 13 to 60% by mass, or 17 with respect to the total amount of solid content in the resin composition. It may be up to 55% by mass.
- the coloring pattern can be formed well, and the resolution and the residual film ratio of the coloring pattern tend to be improved.
- the polymerizable compound (C) is a compound that can be polymerized by an active radical and / or an acid generated from the polymerization initiator (D).
- the polymerizable compound (C) is, for example, a compound having a polymerizable ethylenically unsaturated bond, and is preferably a (meth) acrylic acid ester.
- the polymerizable compound (C) is preferably a polymerizable compound having three or more ethylenically unsaturated bonds.
- examples of such polymerizable compounds include trimethylol propantri (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, and dipentaerythritol poly (meth) acrylate (for example, dipentaerythritol).
- trimethylolpropane tri (meth) acrylate dipentaerythritol penta (meth) acrylate, or dipentaerythritol hexa (meth) acrylate is preferable.
- the weight average molecular weight of the polymerizable compound (C) is preferably 150 or more and 2900 or less, more preferably 250 or more and 1500 or less.
- the content of the polymerizable compound (C) is preferably 7 to 65% by mass, more preferably 13 to 60% by mass, still more preferably 17 to 55% by mass, based on the total amount of solids in the resin composition. be.
- the content of the polymerizable compound (C) is within the above range, the residual film ratio at the time of forming the coloring pattern and the chemical resistance of the optical filter tend to be improved.
- the polymerization initiator (D) is not particularly limited as long as it is a compound that can initiate polymerization by generating active radicals, acids and the like by light or heat, and a known polymerization initiator can be used.
- Examples of the polymerization initiator that generates an active radical include an alkylphenone compound, a triazine compound, an acylphosphine oxide compound, an O-acyloxime compound, and a biimidazole compound.
- the O-acyloxime compound is a compound having a partial structure represented by the formula (d1).
- * represents a bond.
- O-acyloxym compound examples include N-benzoyloxy-1- (4-phenylsulfanylphenyl) butane-1-on-2-imine and N-benzoyloxy-1- (4-phenylsulfanylphenyl) octane-.
- the O-acyloxime compound is N-acetyloxy-1- (4-phenylsulfanylphenyl) -3-cyclohexylpropane-1-one-2-imine, N-.
- the alkylphenone compound is a compound having a partial structure represented by the formula (d2) or a partial structure represented by the formula (d3).
- the benzene ring may have a substituent.
- the alkylphenone compound is preferably a compound having a partial structure represented by the formula (d2).
- Examples of the compound having a partial structure represented by the formula (d2) include 2-methyl-2-morpholino-1- (4-methylsulfanylphenyl) propan-1-one and 2-dimethylamino-1- (4).
- -Morholinophenyl) -2-benzylbutane-1-one 2- (dimethylamino) -2-[(4-methylphenyl) methyl] -1- [4- (4-morpholinyl) phenyl] butane-1-one
- Commercially available products such as Omnirad (formerly Irgacure) 369, 907, 379 (both manufactured by IGM Resins BV) may be used.
- Examples of the compound having a partial structure represented by the formula (d3) include 2-hydroxy-2-methyl-1-phenylpropan-1-one and 2-hydroxy-2-methyl-1- [4- (2). -Hydroxyethoxy) phenyl] Propane-1-one, 1-hydroxycyclohexylphenylketone, 2-hydroxy-2-methyl-1- (4-isopropenylphenyl) propan-1-one oligomer, ⁇ , ⁇ -diethoxy Examples thereof include acetophenone and benzyldimethylketal.
- triazine compound examples include 2,4-bis (trichloromethyl) -6- (4-methoxyphenyl) -1,3,5-triazine and 2,4-bis (trichloromethyl) -6- (4-). Methoxynaphthyl) -1,3,5-triazine, 2,4-bis (trichloromethyl) -6-piperonyl-1,3,5-triazine, 2,4-bis (trichloromethyl) -6- (4-methoxy) Styryl) -1,3,5-triazine, 2,4-bis (trichloromethyl) -6- [2- (5-methylfuran-2-yl) ethenyl] -1,3,5-triazine, 2,4 -Bis (trichloromethyl) -6- [2- (fran-2-yl) ethenyl] -1,3,5-triazine, 2,4-bis (trichloromethyl) -6- [2- (4-diethyla
- acylphosphine oxide compound examples include 2,4,6-trimethylbenzoyldiphenylphosphine oxide.
- Commercially available products such as Omnirad 819 (manufactured by IGM Resins BV) may be used.
- biimidazole compound examples include 2,2'-bis (2-chlorophenyl) -4,4', 5,5'-tetraphenylbiimidazole and 2,2'-bis (2,3-dichlorophenyl)-. 4,4', 5,5'-tetraphenylbiimidazole (see, for example, JP-A-6-75372, JP-A-6-75373, etc.), 2,2'-bis (2-chlorophenyl) -4.
- the phenyl group at the 4,4'5,5'-position is substituted with a carboalkoxy group.
- examples thereof include biimidazole compounds (see, for example, Japanese Patent Application Laid-Open No. 7-10913).
- polymerization initiator (D) examples include benzoin compounds such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether and benzoin isobutyl ether; benzophenone, o-benzoyl methyl benzoate, 4-phenylbenzophenone and 4-benzoyl-4.
- Benzoyl compounds such as'-methyldiphenyl sulfide, 3,3', 4,4'-tetra (tert-butylperoxycarbonyl) benzophenone, 2,4,6-trimethylbenzophenone; 9,10-phenanthlenquinone, 2 -Chinone compounds such as ethylanthraquinone and camphorquinone; 10-butyl-2-chloroacridone; benzyl; methyl phenylglycoxylate; titanosen compounds and the like can be further mentioned. These are preferably used in combination with the polymerization initiation aid (D1) (particularly an amine compound) described later.
- D1 polymerization initiation aid
- Examples of the polymerization initiator that generates an acid include 4-hydroxyphenyldimethylsulfonium p-toluenesulfonate, 4-hydroxyphenyldimethylsulfonium hexafluoroantimonate, 4-acetoxyphenyldimethylsulfonium p-toluenesulfonate, and 4-acetoxy.
- a polymerization initiator that generates an active radical is preferable, and at least selected from the group consisting of an alkylphenone compound, a triazine compound, an acylphosphine oxide compound, an O-acyloxime compound, and a biimidazole compound.
- a polymerization initiator containing only one kind is more preferable, and a polymerization initiator containing an O-acyloxime compound is further preferable.
- the content of the polymerization initiator (D) is, for example, 0.1 to 30 parts by mass or 1 to 20 parts by mass with respect to 100 parts by mass of the total amount of the resin (B) and the polymerizable compound (C). good.
- the content of the polymerization initiator (D) is within the above range, the sensitivity tends to be increased and the exposure time tends to be shortened, so that the productivity of the optical filter is improved.
- the resin composition can further contain a polymerization initiation aid (D1).
- the polymerization initiator (D1) is a compound or a sensitizer used to promote the polymerization of the polymerizable compound (C) whose polymerization has been started by the polymerization initiator.
- the polymerization initiator (D1) is usually used in combination with the polymerization initiator (D).
- Examples of the polymerization initiation aid (D1) include amine compounds, alkoxyanthracene compounds, thioxanthone compounds, and carboxylic acid compounds.
- Examples of the amine compound include triethanolamine, methyldiethanolamine, triisopropanolamine, methyl 4-dimethylaminobenzoate, ethyl 4-dimethylaminobenzoate, isoamyl 4-dimethylaminobenzoate, 2-dimethylaminoethyl benzoate, 4 -2-Ethylhexyl dimethylaminobenzoate, N, N-dimethylparatoluidine, 4,4'-bis (dimethylamino) benzophenone (commonly known as Michelers ketone), 4,4'-bis (diethylamino) benzophenone, 4,4'-bis Examples thereof include (ethylmethylamino) benzophenone, and among them, 4,4'-bis (diethylamino) benzophenone is preferable. Commercially available products such as EAB-F (manufactured by Hodogaya Chemical Co., Ltd.) may be used.
- alkoxyanthracene compound examples include 9,10-dimethoxyanthracene, 2-ethyl-9,10-dimethoxyanthracene, 9,10-diethoxyanthracene, 2-ethyl-9,10-diethoxyanthracene, and 9,10-di. Examples thereof include butoxyanthracene, 2-ethyl-9,10-dibutoxyanthracene and the like.
- thioxanthone compound examples include 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-dichloromethanexanthone, 2,4-dichlorothioxanthone, 1-chloro-4-propoxythioxanthone and the like.
- carboxylic acid compound examples include phenylsulfanylacetic acid, methylphenylsulfanylacetic acid, ethylphenylsulfanylacetic acid, methylethylphenylsulfanylacetic acid, dimethylphenylsulfanylacetic acid, methoxyphenylsulfanylacetic acid, dimethoxyphenylsulfanylacetic acid, chlorophenylsulfanylacetic acid, and dichlorophenylsulfanylacetic acid.
- Examples thereof include N-phenylglycine, phenoxyacetic acid, naphthylthioacetic acid, N-naphthylglycine, naphthoxyacetic acid and the like.
- the content thereof is preferably 0.1 to 30 parts by mass with respect to 100 parts by mass of the total amount of the resin (B) and the polymerizable compound (C). It is preferably 1 to 20 parts by mass.
- the amount of the polymerization initiation aid (D1) is within this range, a coloring pattern can be formed with higher sensitivity, and the productivity of the optical filter tends to be improved.
- the solvent (E) is not particularly limited, and a solvent usually used in the art can be used.
- the solvent (E) include an ester solvent (that is, a solvent containing -COO- in the molecule and not containing -O-) and an ether solvent (that is, a solvent containing -O- in the molecule and containing -COO-).
- Solvent not contained ether ester solvent (that is, solvent containing -COO- and -O- in the molecule), ketone solvent (that is, solvent containing -CO- in the molecule and not containing -COO-), Examples thereof include alcohol solvents (solvents containing OH in the molecule and not containing -O-, -CO- and -COO-), aromatic hydrocarbon solvents, amide solvents, dimethyl sulfoxide and the like.
- Ester solvents include methyl lactate, ethyl lactate, butyl lactate, methyl 2-hydroxyisobutate, ethyl acetate, n-butyl acetate, isobutyl acetate, pentyl formate, isopentyl acetate, butyl propionate, isopropyl butyrate, ethyl butyrate, butyl butyrate. , Methyl pyruvate, ethyl pyruvate, propyl pyruvate, methyl acetoacetate, ethyl acetoacetate, cyclohexanol acetate, ⁇ -butyrolactone and the like.
- ether solvent examples include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, and propylene glycol monoethyl ether.
- ether ester solvent examples include methyl methoxyacetate, ethyl methoxyacetate, butyl methoxyacetate, methyl ethoxyacetate, ethyl ethoxyacetate, methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, 3-ethoxy.
- Ethyl propionate methyl 2-methoxypropionate, ethyl 2-methoxypropionate, propyl 2-methoxypropionate, methyl 2-ethoxypropionate, ethyl 2-ethoxypropionate, methyl 2-methoxy-2-methylpropionate, Ethyl 2-ethoxy-2-methylpropionate, 3-methoxybutyl acetate, 3-methyl-3-methoxybutyl acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, ethylene glycol monomethyl Examples thereof include ether acetate, ethylene glycol monoethyl ether acetate, diethylene glycol monoethyl ether acetate, and diethylene glycol monobutyl ether acetate.
- Ketone solvents include 4-hydroxy-4-methyl-2-pentanone, acetone, 2-butanone, 2-heptanone, 3-heptanone, 4-heptanone, 4-methyl-2-pentanone, cyclopentanone, cyclohexanone, and isophorone. And so on.
- alcohol solvent examples include methanol, ethanol, propanol, butanol, hexanol, cyclohexanol, ethylene glycol, propylene glycol, glycerin and the like.
- aromatic hydrocarbon solvent examples include benzene, toluene, xylene, mesitylene and the like.
- amide solvent examples include N, N-dimethylformamide, N, N-dimethylacetamide, N-methylpyrrolidone and the like.
- the solvent preferably contains one or more selected from the group consisting of an ether solvent, an ether ester solvent and an amide solvent, more preferably contains an ether solvent, an ether ester solvent, and an amide solvent, and diethylene glycol methyl ethyl ether and propylene. It is more preferable to contain glycol monomethyl ether acetate and N-methylpyrrolidone.
- the content of the solvent (E) may be, for example, 67 to 95% by mass, 70 to 95% by mass, or 75 to 92% by mass with respect to the total amount of the resin composition.
- the solid content of the resin composition may be, for example, 5 to 33% by mass, 5 to 30% by mass, or 8 to 25% by mass.
- Leveling agent (F) examples include silicone-based surfactants and fluorine-based surfactants. These surfactants may have a polymerizable group in the side chain.
- silicone-based surfactant examples include a surfactant having a siloxane bond in the molecule.
- DOWNSIL registered trademark
- DC3PA SH7PA, DC11PA, SH21PA, SH28PA, SH29PA, SH30PA, and SH8400
- DC3PA DOWNSIL (registered trademark) (formerly Torre Silicone)
- SH7PA DC11PA
- SH21PA SH28PA
- SH29PA SH30PA
- SH8400 trade name, Dow Corning Toray Specialty Materials Co., Ltd. (formerly Toray Dow Corning) (Manufactured by Shin-Etsu Chemical Co., Ltd.); KP321, KP322, KP323, KP324, KP326, KP340, and KP341 (manufactured by Shin-Etsu Chemical Co., Ltd.); Performance Materials Japan LLC), etc.
- silicone-based surfactants are mentioned as silicone-based surfactants.
- the silicone-based surfactant may be a silicone-based surfactant having a fluorine atom.
- the silicone-based surfactant having a fluorine atom include a surfactant having a siloxane bond and a fluorocarbon chain in the molecule.
- Megafuck (registered trademark) R08, BL20, F475, F477, F443 manufactured by DIC Corporation
- the like can be mentioned as silicone-based surfactants.
- fluorine-based surfactant examples include surfactants having a fluorocarbon chain in the molecule.
- Florard (registered trademark) FC430 and FC431 manufactured by Sumitomo 3M Co., Ltd.
- Megafuck (registered trademark) F142D, F171, F172, F173, F177, F183, F554, R30, and RS-718-K DIC Corporation
- Ftop (registered trademark) EF301, EF303, EF351, and EF352 Mitsubishi Materials Electronics Chemical Co., Ltd.
- Surfron (registered trademark) S381, S382, SC101, and SC105 AGC Inc. (formerly Asahi Glass Co., Ltd.)) Co., Ltd.
- E5844 manufactured by Daikin Fine Chemical Laboratory Co., Ltd.
- fluorine-based surfactants examples include surfactants having a fluorocarbon chain in the molecule.
- Florard (registered trademark) FC430 and FC431 manufactured by Sumitomo
- the content of the leveling agent (F) is, for example, 0.001% by mass or more, 0.2% by mass or less, 0.002 with respect to the total amount of the resin composition from the viewpoint of obtaining an optical filter having good flatness. It may be 0% by mass or more, 0.1% by mass or less, or 0.01% by mass or more and 0.05% by mass or less.
- the content of the pigment dispersant is not included in this content.
- the resin composition according to the present embodiment contains, if necessary, additives known in the art such as fillers, other polymer compounds, adhesion promoters, antioxidants, light stabilizers, chain transfer agents and the like. But it may be.
- the resin composition according to this embodiment may be for a near-infrared cut filter or a near-infrared transmission filter.
- the resin composition according to this embodiment is, for example, a colorant (A) and a resin (B), and a polymerizable compound (C), a polymerization initiator (D), a solvent (E), and a leveling agent used as needed. It can be prepared by mixing (F), a polymerization initiator (D1) and other components.
- the mixed resin composition is preferably filtered through a filter having a pore size of about 0.01 to 10 ⁇ m.
- the optical filter according to one embodiment of the present invention includes a cured product of the above-mentioned resin composition.
- the optical filter may consist of a cured product of the above-mentioned resin composition. Since the cured product of the above-mentioned resin composition absorbs a specific wavelength in the near-infrared region while sufficiently transmitting visible light, the optical filter according to this embodiment can be used as, for example, a near-infrared cut filter. Further, the cured product of the above-mentioned resin composition can be used as a near-infrared transmission filter for transmitting a specific wavelength in the near-infrared region. Therefore, the optical filter according to this embodiment can be used for, for example, an infrared sensor and a display device (for example, a liquid crystal display device, an organic EL device, or electronic paper).
- a display device for example, a liquid crystal display device, an organic EL device, or electronic paper.
- the cured product of the resin composition can be obtained, for example, by irradiating the resin composition with light or by heating the resin composition.
- An optical filter containing the compound represented by the formula (I), the formula (II), the formula (III), or the formula (IV) as the colorant (A) is preferably 700 nm to 2500 nm, more preferably 700 nm to 1500 nm. More preferably, it has an absorption maximum at 700 nm to 1300 nm.
- the optical filter containing the compound represented by the formula (I) may have an absorption maximum at, for example, 720 to 820 nm or 760 to 780 nm.
- the optical filter containing the compound represented by the formula (II) may have an absorption maximum at, for example, 700 to 760 nm or 700 to 720 nm.
- the optical filter containing the compound represented by the formula (III) may have an absorption maximum at, for example, 730 to 890 nm, 780 to 840 nm, 730 to 950 nm, or 770 to 830 nm.
- the optical filter containing the compound represented by the formula (IV) may have an absorption maximum at, for example, 965 to 1065 nm or 980 to 1050 nm.
- the thickness of the optical filter is preferably 20 ⁇ m or less, more preferably 6 ⁇ m or less, still more preferably 3 ⁇ m or less, still more preferably 1.5 ⁇ m or less, and particularly preferably 0.5 ⁇ m or less.
- the thickness of the optical filter is preferably 0.1 ⁇ m or more, more preferably 0.2 ⁇ m or more, still more preferably 0.3 ⁇ m or more.
- the thickness of the optical filter may be, for example, 0.1 to 30 ⁇ m, 0.1 to 20 ⁇ m, or 0.5 to 6 ⁇ m.
- the method for manufacturing the optical filter is not particularly limited, and the optical filter can be manufactured by a conventionally known method.
- an optical filter can be formed on an arbitrary substrate by a photolithography method, an inkjet method, or a printing method. Of these, the photolithography method is preferable.
- the substrate is, for example, quartz glass, borosilicate glass, alumina silicate glass, a glass plate such as soda lime glass whose surface is silica-coated, a resin plate such as polycarbonate, polymethyl methacrylate, polyethylene terephthalate, or silicon. good.
- a substrate provided with a thin film such as aluminum, silver, silver / copper / palladium alloy on these substrates can also be used.
- a substrate on which a hexamethyldisilazane (HMDS) treatment is applied on a silicon substrate can also be used.
- a substrate provided with another optical filter, a resin layer, a transistor, a circuit, or the like can be used on these substrates.
- the above-mentioned resin composition is applied to a substrate, and the resin composition is dried to form a layer of the resin composition.
- the resin composition can be applied, for example, by a spin coating method, a slit coating method, or a slit and spin coating method.
- the thickness of the layer of the resin composition can be appropriately determined according to the thickness of the target optical filter.
- the resin composition can be dried by, for example, heat drying (pre-baking) and / or vacuum drying.
- the heat-drying temperature is preferably 30 to 120 ° C, more preferably 50 to 110 ° C.
- the heating time is preferably 10 seconds to 60 minutes, more preferably 30 seconds to 30 minutes.
- the vacuum drying is preferably carried out under a pressure of 50 to 150 Pa and in a temperature range of 20 to 25 ° C.
- the pattern of the photomask can be appropriately determined according to the use of the optical filter.
- the light source used for exposure is preferably a light source that generates light having a wavelength of 250 to 450 nm. Light having such a wavelength can be obtained, for example, by cutting light in a specific wavelength range (for example, less than 350 nm) from a predetermined light source by using a filter that cuts this wavelength range, or by using a filter that cuts this wavelength range.
- Light (for example, around 436 nm, around 408 nm, or around 365 nm) can also be obtained by selectively extracting light using a bandpass filter that extracts these wavelength ranges.
- the light source may be, for example, a mercury lamp, a light emitting diode, a metal halide lamp, or a halogen lamp.
- a reduced projection exposure device such as a mask aligner and a stepper or a proximity exposure device should be used because the entire exposed surface can be uniformly irradiated with parallel rays and the photomask and the substrate can be accurately aligned. Is preferable.
- an aqueous solution of an alkaline compound such as potassium hydroxide, sodium hydrogen carbonate, sodium carbonate, or tetramethylammonium hydroxide is preferable.
- concentration of the alkaline compound in the aqueous solution is preferably 0.01 to 10% by mass, more preferably 0.03 to 5% by mass.
- the developer may contain a surfactant.
- Development can be carried out by, for example, a paddle method, a dipping method or a spray method.
- the substrate may be tilted at any angle during development. By development, the unexposed portion of the layer of the resin composition is dissolved in a developer and removed.
- the post-bake temperature may be, for example, 80-250 ° C, 100-245 ° C, 150-250 ° C, or 160-250 ° C.
- the post-baking time is, for example, 1 to 120 minutes, 2 to 30 minutes, or 5 to 60 minutes.
- a cured product of the unpatterned resin composition layer can be obtained by not using a photomask at the time of exposure and / or not developing the photomask.
- Both the cured product and the coloring pattern of the resin composition layer are included in the range of the optical filter according to the present embodiment.
- the solid-state image sensor includes the above-mentioned optical filter.
- the optical filter may be a near-infrared transmission filter and / or a near-infrared cut filter.
- the portion of the solid-state element other than the optical filter may be the same as that of a conventionally known solid-state image pickup element.
- FIG. 1 shows an example of a solid-state image sensor.
- the solid-state image sensor 100 shown in FIG. 1 includes a semiconductor substrate 2 including a light receiving element (not shown), a near infrared cut filter 4, a near infrared transmission filter 6, a color filter 8, a microlens 10, and a flat surface.
- the chemical layer 12 is provided.
- the near-infrared cut filter 4 and the near-infrared transmission filter 6, the above-mentioned optical filter can be used.
- the color filter 8 is not particularly limited, and a conventionally known color filter for pixel formation such as the color filter described in Japanese Patent Application Laid-Open No. 2014-043556 can be used.
- the microlens 10 and the flattening layer 12 are not particularly limited, and known microlenses and flattening layers can be used.
- the near-infrared cut filter 4, the color filter 8, and the microlens 10 are laminated in this order, but the positions of the near-infrared cut filter 4 and the color filter 8 are located. May be replaced. Further, another layer may be provided between the near-infrared cut filter 4 and the color filter 8.
- the solid-state image sensor according to this embodiment can be used for an infrared sensor and a display device (for example, a liquid crystal display device, an organic EL device, or electronic paper). That is, according to one embodiment of the present invention, an infrared sensor and a display device including the above-mentioned solid-state image pickup device are also provided.
- a display device for example, a liquid crystal display device, an organic EL device, or electronic paper.
- the colorant (A1-1) is Furuyama, T., Shimasaki, F., Saikawa, N. et al., "One-step synthesis of ball-shaped metal complexes with a main absorption band in the near-IR region". , Scientific Reports 2019, 9, 16528, DOI: 10.1038 / s41598-019-53014-7, compound 2c, synthesized by the method described in such paper.
- the colorant (A1-2) is Furuyama, T., Shimasaki, F., Saikawa, N. et al., "One-step synthesis of ball-shaped metal complexes with a main absorption band in the near-IR region". , Scientific Reports 2019, 9, 16528, DOI: 10.1038 / s41598-019-53014-7, compound 1a, synthesized by the method described in such paper.
- Colorant (A1-3) is Nagao Kobayashi, Taniyuki Furuyama, and Koh Satoh, "Rationally Designed Phthalocyanines Having Their Main Absorption Band beyond 1000 nm", Journal of the American Chemical Society, 2011 133, 49, 19642-19645, DOI : 10.1021 / ja208481q is compound 4a, which was synthesized by the method described in such a paper.
- the colorant (A1-4) is Taniyuki Furuyama, Takashi Ishii, Naoya Ieda, Hajime Maeda, and Masahito Segi, "Cationic axial ligands on sulfur substituted silicon (iv) phthalocyanines: improved hydrophilicity and exceptionally red-shifted absorption into the NIR region. ", Chemical Communications, 2019, 55, 7311-7314, DOI: 10.1039 / C9CC03022K, compound 3 was synthesized by the method described in such paper.
- the colorant (A1-5) is Taniyuki Furuyama, Takashi Ishii, Naoya Ieda, Hajime Maeda, and Masahito Segi, "Cationic axial ligands on sulfur substituted silicon (iv) phthalocyanines: improved hydrophilicity and exceptionally red-shifted absorption into the NIR region. ", Chemical Communications, 2019, 55, 7311-7314, DOI: 10.1039 / C9CC03022K is compound 4Q, which was synthesized by the method described in such paper.
- the colorant (A1-6) is Taniyuki Furuyama, Takashi Ishii, Naoya Ieda, Hajime Maeda, and Masahito Segi, "Cationic axial ligands on sulfur substituted silicon (iv) phthalocyanines: improved hydrophilicity and exceptionally red-shifted absorption into the NIR region. ", Chemical Communications, 2019, 55, 7311-7314, DOI: 10.1039 / C9CC03022K, compound 2 was synthesized by the method described in such paper.
- the resin (B-1) was synthesized as follows. First, an appropriate amount of nitrogen was poured into a flask equipped with a reflux condenser, a dropping funnel and a stirrer to replace it with a nitrogen atmosphere, 340 parts of propylene glycol monomethyl ether acetate was added, and the mixture was heated to 80 ° C. with stirring. Next, 57 parts by mass of acrylic acid, 3,4-epoxytricyclo [5.2.1.0 2,6 ] decane-8-ylacrylate and 3,4-epoxytricyclo [5.2.1.0 2 ].
- the copolymer (resin) having a viscosity of 127 mPas and a solid content of 37.0% by weight measured with a B-type viscometer (23 ° C.).
- (B-1)) A solution was obtained.
- the weight average molecular weight Mw of the produced copolymer was 9.4 ⁇ 10 3 , the dispersity was 1.89, and the acid value in terms of solid content was 114 mg-KOH / g.
- the resin (B-1) has the following structural units.
- the resin (B-2) was synthesized as follows. First, 100 parts by mass of propylene glycol monomethyl ether acetate was placed in a flask equipped with a stirrer, a dropping funnel, a condenser, a thermometer, and a gas introduction tube, and the mixture was stirred while being replaced with nitrogen, and the temperature was raised to 120 ° C.
- perbutyl (registered trademark) O manufactured by Nippon Oil & Fats Co., Ltd.
- a monomer mixture consisting of 7 parts by mass of tricyclodecylmethacrylate, 27 parts by mass of benzyl methacrylate, and 13 parts by mass of methacrylic acid. 1 part by mass was added. This was added dropwise to the flask over 2 hours from the dropping funnel, and further stirred at 120 ° C. for 2 hours to obtain a copolymer.
- Example 1 [Preparation of resin composition]
- the resin composition 1 was obtained by mixing the following components.
- Example 2 Colorant (A1-2)
- Example 3 Colorant (A1-3)
- Example 4 Colorant (A1-4)
- Example 5 Colorant (A1-5) Comparative Example 1: 4,5-octakis (2,5-dichlorophenoxy) -3,6- ⁇ tetrakis (2,6-dimethylphenoxy) -tetrakis (benzylamino) ⁇ vanadium oxide phthalocyanine
- Table 1 shows the average value of the transmittance of the obtained coating film at 450 nm to 650 nm.
- the obtained coating film was subjected to a heat resistance test at 120 ° C. for 10 minutes.
- the transmittance of the coating film before and after the heat resistance test was measured, and the rate of increase in the transmittance of the maximum absorption wavelength existing in the wavelength range shown in Table 2 (that is, the rate of decrease in the absorption rate) was calculated.
- the results are shown in Table 2.
- the rate of increase in transmittance is a value obtained by reducing the transmittance before the heat resistance test from the transmittance after the heat resistance test.
- Example 7 Comparative Example 2
- the resin composition 7 and the resin composition of Comparative Example 2 were prepared in the same manner as in Example 6 except that the colorant (A) of Example 6 was changed to the following compound in the same amount (0.015 parts by mass). Obtained.
- Example 6 The colored resin compositions prepared in Example 6 and Comparative Example 2 were applied onto a 5 cm square glass substrate (Eagle 2000; manufactured by Corning Inc.) by a spin coating method, and then baked at 100 ° C. for 3 minutes to achieve a thickness of 1. A coating film of 0 ⁇ m was obtained.
- the obtained coating film was subjected to a heat resistance test at 120 ° C. for 10 minutes, and the transmittance of the coating film before and after the heat resistance test was measured.
- the rate of increase in the transmittance of the maximum absorption wavelength existing in the wavelength range shown in Table 4 is also shown in Table 4.
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Abstract
Description
Rx1~Rx4は、それぞれ独立に、炭素数1~20の鎖状炭化水素基、炭素数6~20のアリール基、又は炭素数2~20のヘテロアリール基を表し、
該鎖状炭化水素基に含まれる-CH2-は-O-に置換されていてもよく、
該鎖状炭化水素基に含まれる水素原子はハロゲン原子に置換されていてもよく、
該アリール基及び該ヘテロアリール基に含まれる水素原子は、それぞれ独立に、ハロゲン原子、-OR1、-SR1、又は-NR2R3に置換されていてもよく、
R1は、水素原子、炭素数1~10の鎖状炭化水素基、炭素数6~20のアリール基、又は炭素数2~20のヘテロアリール基を表し、該鎖状炭化水素基に含まれる-CH2-は、-O-、-NR2-、又は-N+(R2R3)X--に置換されていてもよく、該アリール基及び該ヘテロアリール基に含まれる水素原子は、それぞれ独立に、ハロゲン原子、又は炭素数1~20の直鎖状若しくは分岐鎖状のアルコキシ基に置換されていてもよく、
R2及びR3は、それぞれ独立に、水素原子、又は炭素数1~10の鎖状炭化水素基を表し、該炭化水素基に含まれる-CH2-は-O-に置換されていてもよく、又は
R2とR3とは互いに結合して環を形成しており、
Xは、ハロゲン原子、PF6、ClO4、又はBF4を表し、
式(I)中のRy1~Ry4は、それぞれ独立に、炭素数1~20の鎖状炭化水素基、炭素数6~20のアリール基、又は炭素数2~20のヘテロアリール基を表し、
該鎖状炭化水素基に含まれる-CH2-は-O-に置換されていてもよく、
該鎖状炭化水素基に含まれる水素原子はハロゲン原子に置換されていてもよく、
該アリール基及び該ヘテロアリール基に含まれる水素原子は、それぞれ独立に、ハロゲン原子、-OR1、-SR1、又は-NR2R3に置換されていてもよく、
式(II)中の環Z1及び環Z2は、それぞれ独立に、炭素数6~20の芳香族炭化水素環又は炭素数2~20のヘテロ芳香族環を表し、
該芳香族炭化水素環及び該ヘテロ芳香族環に含まれる水素原子は、ハロゲン原子、炭素数1~20の鎖状炭化水素基、-OR1、-SR1、又は-NR2R3に置換されていてもよく、
R1、R2、又はR3が複数存在するとき、それらは同一でも異なっていてもよく、
M2は2価の金属原子を表す。]
R1a~R1d、R2a~R2d、R3a~R3d、及びR4a~R4dは、それぞれ独立に、水素原子、ハロゲン原子、炭素数1~20の鎖状炭化水素基、-OR1、-SR1、又は-NR2R3を表し、R1a~R1d、R2a~R2d、R3a~R3d、及びR4a~R4dのうち少なくとも1つは-SR1を表し、
R1は、水素原子、炭素数1~10の鎖状炭化水素基、炭素数6~20のアリール基、又は炭素数2~20のヘテロアリール基を表し、該鎖状炭化水素基に含まれる-CH2-は、-O-、-NR2-、又は-N+(R2R3)X--に置換されていてもよく、該アリール基及び該ヘテロアリール基に含まれる水素原子は、それぞれ独立に、ハロゲン原子、又は炭素数1~20の直鎖状若しくは分岐鎖状のアルコキシ基に置換されていてもよく、
R2及びR3は、それぞれ独立に、水素原子、又は炭素数1~10の鎖状炭化水素基を表し、該炭化水素基に含まれる-CH2-は-O-に置換されていてもよく、又は
R2とR3とは互いに結合して環を形成しており、
Xは、ハロゲン原子、PF6、ClO4、又はBF4を表し、
RA1及びRA2は、それぞれ独立に-OR4を表し、
R4は、水素原子、炭素数1~10の鎖状炭化水素基、炭素数6~20のアリール基、又は炭素数2~20のヘテロアリール基を表し、該鎖状炭化水素基に含まれる-CH2-は、-O-、-NR5-、又は-N+(R5R6)X--に置換されていてもよく、
R5及びR6は、それぞれ独立に、水素原子又は炭素数1~10の鎖状炭化水素基を表し、
R1、R2、R3、R5、又はR6が複数存在するとき、それらは同一でも異なっていてもよく、
式(III)中のM1は4価の金属原子又は非金属原子を表し、
式(IV)中のM3は5価の金属原子又は非金属原子を表し、
式(IV)中のY-は一価のアニオンを表す。]
Rx1~Rx4は、それぞれ独立に炭素数6~20のアリール基を表してもよく、
Ry1~Ry4は、それぞれ独立に炭素数6~20のアリール基を表してもよく、
環Z1及び環Z2は、それぞれ独立に炭素数6~20の芳香族炭化水素環を表してもよく、
M2は、Ru、Fe、Cu、Zn、Co、Ni、又はPdを表してもよく、
R1a~R1d、R2a~R2d、R3a~R3d、及びR4a~R4dは、それぞれ独立に、水素原子又は-SR1を表してもよく、
R4は、水素原子又は炭素数1~10の鎖状炭化水素基を表してもよく、該鎖状炭化水素基に含まれる-CH2-は、-O-、-NR5-、又は-N+(R5R6)X--に置換されていてもよく、
M1はSiを表してもよく、
M3はPを表してもよい。
Rx1~Rx4は、それぞれ独立に炭素数6~10のアリール基を表してもよく、
Ry1~Ry4は、それぞれ独立に炭素数6~10のアリール基を表してもよく、
環Z1及び環Z2は、それぞれ独立に炭素数6~10の芳香族炭化水素環を表してもよく、
M2はRuを表してもよく、
R1は炭素数6~10のアリール基を表してもよく、
R4は、水素原子又は炭素数1~10の鎖状炭化水素基を表してもよく、該鎖状炭化水素基に含まれる-CH2-は、-O-又は-N+(R5R6)X--に置換されていてもよい。
本発明の一形態に係る樹脂組成物は、着色剤及び樹脂(以下、それぞれ着色剤(A)及び樹脂(B)という場合がある)を含む。樹脂組成物は、重合性化合物、重合開始剤、溶剤、及びレベリング剤(以下、それぞれ重合性化合物(C)、重合開始剤(D)、溶剤(E)、及びレベリング剤(F)という場合がある。)のうち1以上をさらに含んでいてもよい。本明細書において、各成分として例示する化合物は、特に断りのない限り、単独で使用してもよく、複数種の化合物を組合せて使用してもよい。樹脂組成物は、耐熱性及び可視光透過性の両方に優れることが好ましく、さらに耐光性にも優れることがより好ましい。
本明細書において、着色剤とは、特定の波長を吸収する物質を意味し、着色剤の範囲には、例えば、可視光吸収剤、赤外線吸収剤、近赤外線吸収剤、及び紫外線吸収剤が含まれる。着色剤(A)は、式(I)、式(II)、式(III)、又は式(IV)で表される化合物(以下、着色剤(A1)という場合がある)を含む。
樹脂(B)は、特に限定されないが、アルカリ可溶性樹脂であることが好ましい。樹脂(B)としては、例えば以下の樹脂[K1]~[K6]が挙げられる:
不飽和カルボン酸及び不飽和カルボン酸無水物からなる群より選ばれる少なくとも1種(a)(以下「(a)」という場合がある)に由来する構造単位と、炭素数2~4の環状エーテル構造及びエチレン性不飽和結合を有する単量体(b)(以下「(b)」という場合がある)に由来する構造単位と、を有する共重合体である樹脂[K1];
(a)に由来する構造単位と(b)に由来する構造単位と、(a)と共重合可能な単量体(c)(ただし、(a)及び(b)とは異なる。)(以下「(c)」という場合がある)に由来する構造単位と、を有する共重合体である樹脂[K2];
(a)に由来する構造単位と、(c)に由来する構造単位と、を有する共重合体である樹脂[K3];
(a)に由来する構造単位に(b)を付加させた構造単位と、(c)に由来する構造単位と、を有する共重合体である樹脂[K4];
(b)に由来する構造単位に(a)を付加させた構造単位と、(c)に由来する構造単位と、を有する共重合体である樹脂[K5];又は
(b)に由来する構造単位に(a)を付加させ、カルボン酸無水物をさらに付加させた構造単位と、(c)に由来する構造単位と、を有する共重合体である樹脂[K6]。なかでも、樹脂(B)は、不飽和カルボン酸及び不飽和カルボン酸無水物からなる群より選ばれる少なくとも1種に由来する構造単位と、炭素数2~4の環状エーテル構造及びエチレン性不飽和結合を有する単量体に由来する構造単位と、を有する共重合体(すなわち、樹脂K1又はK2)であることが好ましく、樹脂K2であることがより好ましい。
2-ヒドロキシエチル(メタ)アクリレート、2-ヒドロキシプロピル(メタ)アクリレート等のヒドロキシ基含有(メタ)アクリル酸エステル;
マレイン酸ジエチル、フマル酸ジエチル、イタコン酸ジエチル等のジカルボン酸ジエステル;
ビシクロ[2.2.1]ヘプト-2-エン、5-メチルビシクロ[2.2.1]ヘプト-2-エン、5-エチルビシクロ[2.2.1]ヘプト-2-エン、5-ヒドロキシビシクロ[2.2.1]ヘプト-2-エン、5-ヒドロキシメチルビシクロ[2.2.1]ヘプト-2-エン、5-(2’-ヒドロキシエチル)ビシクロ[2.2.1]ヘプト-2-エン、5-メトキシビシクロ[2.2.1]ヘプト-2-エン、5-エトキシビシクロ[2.2.1]ヘプト-2-エン、5,6-ジヒドロキシビシクロ[2.2.1]ヘプト-2-エン、5,6-ジ(ヒドロキシメチル)ビシクロ[2.2.1]ヘプト-2-エン、5,6-ジ(2’-ヒドロキシエチル)ビシクロ[2.2.1]ヘプト-2-エン、5,6-ジメトキシビシクロ[2.2.1]ヘプト-2-エン、5,6-ジエトキシビシクロ[2.2.1]ヘプト-2-エン、5-ヒドロキシ-5-メチルビシクロ[2.2.1]ヘプト-2-エン、5-ヒドロキシ-5-エチルビシクロ[2.2.1]ヘプト-2-エン、5-ヒドロキシメチル-5-メチルビシクロ[2.2.1]ヘプト-2-エン、5-tert-ブトキシカルボニルビシクロ[2.2.1]ヘプト-2-エン、5-シクロヘキシルオキシカルボニルビシクロ[2.2.1]ヘプト-2-エン、5-フェノキシカルボニルビシクロ[2.2.1]ヘプト-2-エン、5,6-ビス(tert-ブトキシカルボニル)ビシクロ[2.2.1]ヘプト-2-エン、5,6-ビス(シクロヘキシルオキシカルボニル)ビシクロ[2.2.1]ヘプト-2-エン等のビシクロ不飽和化合物;
N-フェニルマレイミド、N-シクロヘキシルマレイミド、N-ベンジルマレイミド、N-スクシンイミジル-3-マレイミドベンゾエート、N-スクシンイミジル-4-マレイミドブチレート、N-スクシンイミジル-6-マレイミドカプロエート、N-スクシンイミジル-3-マレイミドプロピオネート、N-(9-アクリジニル)マレイミド等のジカルボニルイミド誘導体;
スチレン、α-メチルスチレン、m-メチルスチレン、p-メチルスチレン、ビニルトルエン、p-メトキシスチレン、アクリロニトリル、メタクリロニトリル、塩化ビニル、塩化ビニリデン、アクリルアミド、メタクリルアミド、酢酸ビニル、1,3-ブタジエン、イソプレン、2,3-ジメチル-1,3-ブタジエン等が挙げられる。
これらのうち、共重合反応性及び耐熱性の観点から、スチレン、ビニルトルエン、N-フェニルマレイミド、N-シクロヘキシルマレイミド、N-ベンジルマレイミド、又はビシクロ[2.2.1]ヘプト-2-エンが好ましい。
(a)に由来する構造単位が2~60モル%であり、かつ、
(b)に由来する構造単位が40~98モル%
であることが好ましく、
(a)に由来する構造単位が10~50モル%であり、かつ、
(b)に由来する構造単位が50~90モル%
であることがより好ましい。
樹脂[K1]の各構造単位の比率が上記範囲内にあると、樹脂組成物の保存安定性、後述する着色パターンを形成する際の現像性、及び光学フィルタの耐溶剤性に優れる傾向がある。
(a)に由来する構造単位が2~45モル%であり、
(b)に由来する構造単位が2~95モル%であり、かつ
(c)に由来する構造単位が1~65モル%
であることが好ましく、
(a)に由来する構造単位が5~40モル%であり、
(b)に由来する構造単位が5~80モル%であり、かつ、
(c)に由来する構造単位が5~60モル%
であることがより好ましい。
樹脂[K2]の各構造単位の比率が上記範囲内にあると、樹脂組成物の保存安定性、着色パターンを形成する際の現像性、並びに、光学フィルタの耐溶剤性、耐熱性及び機械強度に優れる傾向がある。
(a)に由来する構造単位が2~60モル%であり、かつ
(c)に由来する構造単位が40~98モル%
であることが好ましく、
(a)に由来する構造単位が10~50モル%であり、かつ
(c)に由来する構造単位が50~90モル%
であることがより好ましい。
(b)に由来する構造単位が5~95モル%であり、かつ
(c)に由来する構造単位が5~95モル%
であることが好ましく、
(b)に由来する構造単位が10~90モル%であり、かつ
(c)に由来する構造単位が10~90モル%
であることがより好ましい。
また、上記の共重合体に反応させる(a)の使用量は、(b)100モルに対して、5~80モルが好ましい。環状エーテルの反応性が高く、未反応の(b)が残存しにくいことから、樹脂[K5]に用いる(b)としては(b1)が好ましく、(b1-1)がより好ましい。
重合性化合物(C)は、重合開始剤(D)から発生した活性ラジカル及び/又は酸によって重合し得る化合物である。重合性化合物(C)は、例えば重合性のエチレン性不飽和結合を有する化合物であり、好ましくは(メタ)アクリル酸エステルである。
重合開始剤(D)は、光又は熱により活性ラジカル、酸等を発生し、重合を開始し得る化合物であれば特に限定されず、公知の重合開始剤を用いることができる。
樹脂組成物は、重合開始助剤(D1)をさらに含むことができる。重合開始助剤(D1)は、重合開始剤によって重合が開始された重合性化合物(C)の重合を促進するために用いられる化合物、又は増感剤である。重合開始助剤(D1)は、通常、重合開始剤(D)と組み合わせて用いられる。重合開始助剤(D1)としては、例えば、アミン化合物、アルコキシアントラセン化合物、チオキサントン化合物、及びカルボン酸化合物が挙げられる。
溶剤(E)は、特に限定されず、当該分野で通常使用される溶剤を用いることができる。溶剤(E)としては、例えば、エステル溶剤(すなわち、分子内に-COO-を含み、-O-を含まない溶剤)、エーテル溶剤(すなわち、分子内に-O-を含み、-COO-を含まない溶剤)、エーテルエステル溶剤(すなわち、分子内に-COO-と-O-とを含む溶剤)、ケトン溶剤(すなわち、分子内に-CO-を含み、-COO-を含まない溶剤)、アルコール溶剤(分子内にOHを含み、-O-、-CO-及び-COO-を含まない溶剤)、芳香族炭化水素溶剤、アミド溶剤、ジメチルスルホキシド等が挙げられる。
レベリング剤(F)としては、シリコーン系界面活性剤、フッ素系界面活性剤等が挙げられる。これら界面活性剤は、側鎖に重合性基を有していてもよい。
本形態に係る樹脂組成物は、必要に応じて、充填剤、他の高分子化合物、密着促進剤、酸化防止剤、光安定剤、連鎖移動剤等、当該技術分野で公知の添加剤を含んでもよい。
本形態に係る樹脂組成物は、例えば、着色剤(A)及び樹脂(B)、並びに必要に応じて用いられる重合性化合物(C)、重合開始剤(D)、溶剤(E)、レベリング剤(F)、重合開始助剤(D1)及びその他の成分を混合することにより調製できる。混合後の樹脂組成物は、孔径0.01~10μm程度のフィルタでろ過することが好ましい。
本発明の一形態に係る光学フィルタは、上述の樹脂組成物の硬化物を含む。光学フィルタは、上述の樹脂組成物の硬化物からなってもよい。上述の樹脂組成物の硬化物は、可視光を十分に透過しつつ近赤外線領域における特定の波長を吸収するため、本形態に係る光学フィルタは、例えば、近赤外線カットフィルタとして使用し得る。また、上述の樹脂組成物の硬化物は、近赤外線領域における特定の波長を透過するための近赤外線透過フィルタとして使用し得る。したがって、本形態にかかる光学フィルタは、例えば、赤外線センサ及び表示装置(例えば、液晶表示装置、有機EL装置、又は電子ペーパー)に用いることができる。
本発明の一形態に係る固体撮像素子は、上述の光学フィルタを備える。光学フィルタは近赤外線透過フィルタ及び/又は近赤外線カットフィルタであってよい。固体素子における光学フィルタ以外の部分は、従来公知の固体撮像素子と同様であってよい。図1に固体撮像素子の一例を示す。
式(II)で表される化合物である着色剤(A1-1)を合成した。着色剤(A1-1)は、Furuyama, T., Shimasaki, F., Saikawa, N. et al., "One-step synthesis of ball-shaped metal complexes with a main absorption band in the near-IR region", Scientific Reports 2019, 9, 16528, DOI: 10.1038/s41598-019-53014-7に記載された化合物2cであり、かかる論文に記載された方法により合成した。
式(I)で表される化合物である着色剤(A1-2)を合成した。着色剤(A1-2)は、Furuyama, T., Shimasaki, F., Saikawa, N. et al., "One-step synthesis of ball-shaped metal complexes with a main absorption band in the near-IR region", Scientific Reports 2019, 9, 16528, DOI: 10.1038/s41598-019-53014-7に記載された化合物1aであり、かかる論文に記載された方法により合成した。
式(IV)で表される化合物である着色剤(A1-3)を合成した。着色剤(A1-3)は、Nagao Kobayashi, Taniyuki Furuyama, and Koh Satoh, "Rationally Designed Phthalocyanines Having Their Main Absorption Band beyond 1000 nm", Journal of the American Chemical Society, 2011 133, 49, 19642-19645, DOI: 10.1021/ja208481qに記載された化合物4aであり、かかる論文に記載された方法により合成した。
式(III)で表される化合物である着色剤(A1-4)を合成した。着色剤(A1-4)は、Taniyuki Furuyama, Takashi Ishii, Naoya Ieda, Hajime Maeda, and Masahito Segi, "Cationic axial ligands on sulfur substituted silicon(iv) phthalocyanines: improved hydrophilicity and exceptionally red-shifted absorption into the NIR region", Chemical Communications, 2019, 55, 7311-7314, DOI: 10.1039/C9CC03022Kに記載された化合物3であり、かかる論文に記載された方法により合成した。
式(III)で表される化合物である着色剤(A1-5)を合成した。着色剤(A1-5)は、Taniyuki Furuyama, Takashi Ishii, Naoya Ieda, Hajime Maeda, and Masahito Segi, "Cationic axial ligands on sulfur substituted silicon(iv) phthalocyanines: improved hydrophilicity and exceptionally red-shifted absorption into the NIR region", Chemical Communications, 2019, 55, 7311-7314, DOI: 10.1039/C9CC03022Kに記載された化合物4Qであり、かかる論文に記載された方法により合成した。
式(III)で表される化合物である着色剤(A1-6)を合成した。着色剤(A1-6)は、Taniyuki Furuyama, Takashi Ishii, Naoya Ieda, Hajime Maeda, and Masahito Segi, "Cationic axial ligands on sulfur substituted silicon(iv) phthalocyanines: improved hydrophilicity and exceptionally red-shifted absorption into the NIR region", Chemical Communications, 2019, 55, 7311-7314, DOI: 10.1039/C9CC03022Kに記載された化合物2であり、かかる論文に記載された方法により合成した。
次のとおり、樹脂(B-1)を合成した。まず、還流冷却器、滴下ロート及び攪拌機を備えたフラスコ内に窒素を適量流し窒素雰囲気に置換し、プロピレングリコールモノメチルエーテルアセテート340部を入れ、攪拌しながら80℃まで加熱した。次いで、アクリル酸57質量部、3,4-エポキシトリシクロ[5.2.1.02,6]デカン-8-イルアクリレートと3,4-エポキシトリシクロ[5.2.1.02,6]デカン-9-イルアクリレートとの混合物(含有比はモル比で1:1)54質量部、ベンジルメタクリレート239質量部、及びプロピレングリコールモノメチルエーテルアセテート73質量部の混合溶液を5時間かけて滴下した。一方、重合開始剤2,2-アゾビス(2,4-ジメチルバレロニトリル)40質量部をプロピレングリコールモノメチルエーテルアセテート197質量部に溶解した溶液を6時間かけて滴下した。開始剤溶液の滴下終了後、80℃で3時間保持した後、室温まで冷却して、B型粘度計(23℃)で測定した粘度127mPas、固形分37.0重量%の共重合体(樹脂(B-1))溶液を得た。生成した共重合体の重量平均分子量Mwは9.4×103、分散度は1.89、固形分換算の酸価は114mg-KOH/gであった。樹脂(B-1)は、以下の構造単位を有する。
次のとおり、樹脂(B-2)を合成した。まず、攪拌装置、滴下ロート、コンデンサー、温度計、及びガス導入管を備えたフラスコにプロピレングリコールモノメチルエーテルアセテート100質量部を取り、窒素置換しながら攪拌し、120℃に昇温した。次に、トリシクロデシルメタクリレート7質量部、ベンジルメタクリレート27質量部、及びメタクリル酸13質量部からなるモノマー混合物に、パーブチル(登録商標)O(日本油脂株式会社製)をモノマー混合物100質量部に対し1質量部を添加した。これを滴下ロートから2時間かけてフラスコに滴下し、さらに、120℃で2時間攪拌し共重合体を得た。次に、フラスコ内を空気置換に替え、グリシジルメタクリレート7質量部、トリフェニルホスフィン0.34質量部、及びメチルハイドロキノン0.07質量部を上記共重合体の溶液中に投入し、120℃で反応を続けた。固形分換算の酸価が105mg-KOH/gとなったところで反応を終了し、プロピレングリコールモノメチルエーテルアセテート32質量部を加えることにより、固形分30%のアルカリ現像可能な感光性樹脂(樹脂(B-2))(Mw:30000)の溶液を得た。
(実施例1)
〔樹脂組成物の調製〕
下記の成分を混合することにより、樹脂組成物1を得た。
着色剤(A):着色剤(A1-1) 0.015質量部
樹脂(B):樹脂(B-1) 1.5質量部(固形分換算)
溶剤(E):プロピレングリコールモノメチルエーテルアセテート
2.6質量部
溶剤(E):N-メチルピロリドン 5.9質量部
レベリング剤(F):ポリエーテル変性シリコーンオイル(DOWSIL SH8400;デュポン・東レ・スペシャルティ・マテリアル株式会社製)
0.00015質量部
〔樹脂組成物の調製〕
実施例1の着色剤(A)を同量(0.015質量部)の下記の化合物に変えた以外は実施例1と同様の方法で、樹脂組成物2~5、及び比較例1の樹脂組成物を得た。
実施例2:着色剤(A1-2)
実施例3:着色剤(A1-3)
実施例4:着色剤(A1-4)
実施例5:着色剤(A1-5)
比較例1:4,5-オクタキス(2,5-ジクロロフェノキシ)-3,6-{テトラキス(2,6-ジメチルフェノキシ)-テトラキス(ベンジルアミノ)}酸化バナジウムフタロシアニン
5cm角のガラス基板(イーグル2000;コーニング社製)上に、実施例1~5及び比較例1で調製した樹脂組成物をスピンコート法で塗布したのち、100℃で3分間ベークして厚み1.0μmの塗膜を得た。塗膜の厚みは、膜厚測定装置(DEKTAK3;日本真空技術(株)製)を用いて測定した。
その後、得られた塗膜に対して120℃で10分間耐熱性試験を実施した。耐熱性試験前後の塗膜の透過率を測定し、表2に示す波長範囲内に存在する極大吸収波長の透過率の増加率(すなわち、吸収率の低下率)を算出した。結果を表2に示す。なお、透過率の増加率は、耐熱性試験後の透過率から耐熱性試験前の透過率を減ずることによって得られる値である。
100℃で3分間ベークして得られた塗膜の上に紫外線カットフィルタ(COLORED OPTICAL GLASS L38;HOYA(株)製;380nm以下の光をカットする。)を配置した。耐光性試験機(サンテストCPS+:(株)東洋精機製作所製)を用いて、キセノンランプ光を48時間照射する耐光性試験を実施し、耐光試験前後の塗膜の透過率を測定した。表3に示す波長範囲内に存在する極大吸収波長の透過率の増加率を、表3に併せて示す。なお、透過率の増加率は、耐光性試験後の透過率から耐光性試験前の透過率を減ずることによって得られる値である。
(実施例6)
〔樹脂組成物の調製〕
下記の成分を混合することにより、樹脂組成物6を得た。
着色剤(A):着色剤(A1-1) 0.015質量部
樹脂(B):樹脂(B-2) 0.81質量部(固形分換算)
重合性化合物(C):ジペンタエリスリトールポリアクリレート(新中村化学工業株式会社製NKエステル A-9550)0.54質量部(固形換算)
重合開始剤(D):2-メチル-2-モルホリノ-1-(4-メチルスルファニルフェニル)プロパン-1-オン(IGM Resins B.V.社製Omnirad 907) 0.14質量部
溶剤(E):プロピレングリコールモノメチルエーテルアセテート
2.0質量部
溶剤(E):N-メチルピロリドン 6.5質量部
〔樹脂組成物の調製〕
実施例6の着色剤(A)を同量(0.015質量部)の下記の化合物に変えた以外は実施例6と同様の方法で、樹脂組成物7及び比較例2の樹脂組成物を得た。
実施例7:着色剤(A1-4)
比較例2:4,5-オクタキス(2,5-ジクロロフェノキシ)-3,6-{テトラキス(2,6-ジメチルフェノキシ)-テトラキス(ベンジルアミノ)}酸化バナジウムフタロシアニン
5cm角のガラス基板(イーグル2000;コーニング社製)上に、実施例6及び比較例2で調製した着色樹脂組成物をスピンコート法で塗布したのち、100℃で3分間ベークして厚み1.0μmの塗膜を得た。
その後、得られた塗膜に対して120℃で10分間耐熱性試験を実施し、耐熱性試験前後の塗膜の透過率を測定した。表4に示す波長範囲内に存在する極大吸収波長の透過率の増加率を、表4に併せて示す。
100℃で3分間ベークして得られた塗膜の上に紫外線カットフィルタ(COLORED OPTICAL GLASS L38;HOYA(株)製;380nm以下の光をカットする。)を配置した。耐光性試験機(サンテストCPS+:(株)東洋精機製作所製)を用いて、キセノンランプ光を48時間照射する耐光性試験を実施し、耐光試験前後の塗膜の透過率を測定した。表5に示す波長範囲内に存在する極大吸収波長の透過率の増加率を、表5に併せて示す。
Claims (9)
- 着色剤及び樹脂を含み、
着色剤は、式(I)、式(II)、式(III)、又は式(IV)で表される化合物を含む、樹脂組成物
Rx1~Rx4は、それぞれ独立に、炭素数1~20の鎖状炭化水素基、炭素数6~20のアリール基、又は炭素数2~20のヘテロアリール基を表し、
該鎖状炭化水素基に含まれる-CH2-は-O-に置換されていてもよく、
該鎖状炭化水素基に含まれる水素原子はハロゲン原子に置換されていてもよく、
該アリール基及び該ヘテロアリール基に含まれる水素原子は、それぞれ独立に、ハロゲン原子、-OR1、-SR1、又は-NR2R3に置換されていてもよく、
R1は、水素原子、炭素数1~10の鎖状炭化水素基、炭素数6~20のアリール基、又は炭素数2~20のヘテロアリール基を表し、該鎖状炭化水素基に含まれる-CH2-は、-O-、-NR2-、又は-N+(R2R3)X--に置換されていてもよく、該アリール基及び該ヘテロアリール基に含まれる水素原子は、それぞれ独立に、ハロゲン原子、又は炭素数1~20の直鎖状若しくは分岐鎖状のアルコキシ基に置換されていてもよく、
R2及びR3は、それぞれ独立に、水素原子、又は炭素数1~10の鎖状炭化水素基を表し、該炭化水素基に含まれる-CH2-は-O-に置換されていてもよく、又は
R2とR3とは互いに結合して環を形成しており、
Xは、ハロゲン原子、PF6、ClO4、又はBF4を表し、
式(I)中のRy1~Ry4は、それぞれ独立に、炭素数1~20の鎖状炭化水素基、炭素数6~20のアリール基、又は炭素数2~20のヘテロアリール基を表し、
該鎖状炭化水素基に含まれる-CH2-は-O-に置換されていてもよく、
該鎖状炭化水素基に含まれる水素原子はハロゲン原子に置換されていてもよく、
該アリール基及び該ヘテロアリール基に含まれる水素原子は、それぞれ独立に、ハロゲン原子、-OR1、-SR1又は-NR2R3に置換されていてもよく、
式(II)中の環Z1及び環Z2は、それぞれ独立に、炭素数6~20の芳香族炭化水素環又は炭素数2~20のヘテロ芳香族環を表し、
該芳香族炭化水素環及び該ヘテロ芳香族環に含まれる水素原子は、ハロゲン原子、炭素数1~20の鎖状炭化水素基、-OR1、-SR1、又は-NR2R3に置換されていてもよく、
R1、R2、又はR3が複数存在するとき、それらは同一でも異なっていてもよく、
M2は2価の金属原子を表す。]
R1a~R1d、R2a~R2d、R3a~R3d、及びR4a~R4dは、それぞれ独立に、水素原子、ハロゲン原子、炭素数1~20の鎖状炭化水素基、-OR1、-SR1、又は-NR2R3を表し、R1a~R1d、R2a~R2d、R3a~R3d、及びR4a~R4dのうち少なくとも1つは-SR1を表し、
R1は、水素原子、炭素数1~10の鎖状炭化水素基、炭素数6~20のアリール基、又は炭素数2~20のヘテロアリール基を表し、該鎖状炭化水素基に含まれる-CH2-は、-O-、-NR2-、又は-N+(R2R3)X--に置換されていてもよく、該アリール基及び該ヘテロアリール基に含まれる水素原子は、それぞれ独立に、ハロゲン原子、又は炭素数1~20の直鎖状若しくは分岐鎖状のアルコキシ基に置換されていてもよく、
R2及びR3は、それぞれ独立に、水素原子、又は炭素数1~10の鎖状炭化水素基を表し、該炭化水素基に含まれる-CH2-は-O-に置換されていてもよく、又は
R2とR3とは互いに結合して環を形成しており、
Xは、ハロゲン原子、PF6、ClO4、又はBF4を表し、
RA1及びRA2は、それぞれ独立に-OR4を表し、
R4は、水素原子、炭素数1~10の鎖状炭化水素基、炭素数6~20のアリール基、又は炭素数2~20のヘテロアリール基を表し、該鎖状炭化水素基に含まれる-CH2-は、-O-、-NR5-、又は-N+(R5R6)X--に置換されていてもよく、
R5及びR6は、それぞれ独立に、水素原子又は炭素数1~10の鎖状炭化水素基を表し、
R1、R2、R3、R5、又はR6が複数存在するとき、それらは同一でも異なっていてもよく、
式(III)中のM1は4価の金属原子又は非金属原子を表し、
式(IV)中のM3は5価の金属原子又は非金属原子を表し、
式(IV)中のY-は一価のアニオンを表す。]。 - 重合性化合物及び重合開始剤をさらに含む、請求項1に記載の樹脂組成物。
- 樹脂が、不飽和カルボン酸及び不飽和カルボン酸無水物からなる群より選ばれる少なくとも1種に由来する構造単位と、炭素数2~4の環状エーテル構造及びエチレン性不飽和結合を有する単量体に由来する構造単位と、を含む共重合体である、請求項1又は2に記載の樹脂組成物。
- Rx1~Rx4が、それぞれ独立に炭素数6~20のアリール基を表し、
Ry1~Ry4が、それぞれ独立に炭素数6~20のアリール基を表し、
環Z1及び環Z2が、それぞれ独立に炭素数6~20の芳香族炭化水素環を表し、
M2が、Ru、Fe、Cu、Zn、Co、Ni、又はPdを表し、
R1a~R1d、R2a~R2d、R3a~R3d、及びR4a~R4dが、それぞれ独立に、水素原子又は-SR1を表し、
R4が、水素原子又は炭素数1~10の鎖状炭化水素基を表し、該鎖状炭化水素基に含まれる-CH2-は、-O-、-NR5-、又は-N+(R5R6)X--に置換されていてもよく、
M1がSiを表し、
M3がPを表す、請求項1~3のいずれか一項に記載の樹脂組成物。 - Rx1~Rx4が、それぞれ独立に炭素数6~10のアリール基を表し、
Ry1~Ry4が、それぞれ独立に炭素数6~10のアリール基を表し、
環Z1及び環Z2が、それぞれ独立に炭素数6~10の芳香族炭化水素環を表し、
M2がRuを表し、
R1が炭素数6~10のアリール基を表し、
R4が、水素原子又は炭素数1~10の鎖状炭化水素基を表し、該鎖状炭化水素基に含まれる-CH2-は、-O-又は-N+(R5R6)X--に置換されていてもよい、請求項4に記載の樹脂組成物。 - 着色剤が式(I)又は式(II)で表される化合物を含む、請求項5に記載の樹脂組成物。
- 請求項1~7のいずれか一項に記載の樹脂組成物の硬化物を含む、光学フィルタ。
- 請求項8に記載の光学フィルタを備える、固体撮像素子。
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