Colored resin composition and compound

Abstract

To provide a colored resin composition enabling formation of a color filter excellent in heat resistance, and a compound.SOLUTION: A colored resin composition is provided, containing a colorant represented by formula (I) and an alkali-soluble resin. [In formula (I), R1 to R8 each independently represents hydrogen atom, -Ra1, -ORa1, halogen atom, hydroxy group, carboxy group, -CO-O-Ra1, -O-CO-Ra1, -CO-Ra1, or nitro group, and R7 and R8 may combine with each other to form a ring.].SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a colored resin composition and compound. [Background technology]

[0002] Color filters used in displays such as liquid crystal displays, electroluminescent displays, and plasma displays, and solid-state image sensors such as CCD and CMOS sensors, are produced from colored resin compositions. Various colorants are used as the colored resin compositions for forming the color filters.

[0003] For example, it is known that a perylene compound represented by the following formula (x) can be used as a colorant (Non-Patent Document 1).

[0004] [ka] [Prior art documents] [Non-patent literature]

[0005] [Non-Patent Document 1] BASF Technical Report (Lumogen(R) F), BASF, November 1997, 2-6 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the above-mentioned perylene compounds may not have sufficient heat resistance when used as a colored resin composition. Therefore, an object of the present invention is to provide a colored resin composition and a compound capable of forming a color filter having excellent heat resistance. [Means for solving the problem]

[0007] The gist of the present invention is as follows. [1] A colored resin composition comprising a colorant and an alkali-soluble resin, wherein the colorant contains a compound represented by formula (I). [ka] [In formula (I), R 1 ~R 8 are each independently a hydrogen atom, -R a1 , -OR a1 , halogen atom, hydroxy group, carboxy group, -CO-OR a1 , -O-CO-R a1 , -CO-R a1 or a nitro group; R 7 and R 8 may be bonded to each other to form a ring. R a1 represents a hydrocarbon group having 1 to 20 carbon atoms which may have a substituent. L 1 represents an n-valent linking group. and n represents an integer of 2 to 6. [2] The colored resin composition according to [1], further comprising a polymerizable compound and a polymerization initiator. [3] A color filter formed from the colored resin composition according to [1] or [2]. [4] A display device comprising the color filter according to [3]. [5] A compound represented by formula (Ia). [ka] [In formula (Ia), R 1 ~R 8 are each independently a hydrogen atom, -R a1 , -OR a1 , halogen atom, hydroxy group, carboxy group, -CO-OR a1 , -O-CO-R a1 , -CO-R a1 or a nitro group; R 7 and R 8 may be bonded to each other to form a ring. Ra1 represents a hydrocarbon group having 1 to 20 carbon atoms which may have a substituent. N x represents a nitrogen atom. L 2 represents an n-valent linking group containing an aromatic ring, and the carbon atoms constituting the aromatic ring are N x directly binds to and n represents an integer of 2 to 6. Effect of the Invention

[0008] According to the present invention, it is possible to provide a colored resin composition and a compound capable of forming a color filter having excellent heat resistance. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The colored resin composition of the present invention contains a colorant (hereinafter, sometimes referred to as colorant (A)) and an alkali-soluble resin (hereinafter, sometimes referred to as resin (B)), and the colorant contains a compound represented by formula (I). The colored resin composition of the present invention may further contain a polymerizable compound (hereinafter, may be referred to as a polymerizable compound (C)) and a polymerization initiator (hereinafter, may be referred to as a polymerization initiator (D)). The colored resin composition of the present invention may further contain a solvent (hereinafter, may be referred to as solvent (E)). The colored resin composition of the present invention may further contain a polymerization initiation aid (hereinafter, may be referred to as polymerization initiation aid (D1)). The colored resin composition of the present invention may further contain a leveling agent (hereinafter, may be referred to as leveling agent (F)). In this specification, the compounds exemplified as each component may be used alone or in combination of two or more kinds, unless otherwise specified.

[0010] <Colorant (A)> The colorant (A) contains a compound represented by formula (I) (hereinafter, may be referred to as compound (I)). The colored resin composition containing compound (I) as a colorant has excellent heat resistance.

[0011] <<Compound (I)>> [ka] [In formula (I), R 1 ~R 8 are each independently a hydrogen atom, -R a1 , -OR a1 , halogen atom, hydroxy group, carboxy group, -CO-OR a1 , -O-CO-R a1 , -CO-R a1 or a nitro group; R 7 and R 8 may be bonded to each other to form a ring. R a1 represents a hydrocarbon group having 1 to 20 carbon atoms which may have a substituent. L 1 represents an n-valent linking group. and n represents an integer of 2 to 6.

[0012] R a1 Examples of the hydrocarbon group having 1 to 20 carbon atoms represented by the formula (1) include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. The aliphatic hydrocarbon group may be saturated or unsaturated, and may be linear or alicyclic.

[0013] R a1Examples of the saturated or unsaturated chain hydrocarbon group represented by the formula (I) include linear alkyl groups such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, a hexadecyl group, a heptadecyl group, an octadecyl group, a nonadecyl group, and an icosyl group; an isopropyl group, a (1-ethyl)propyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a (1-ethyl)butyl group, a (2-ethyl)butyl group, a (1-propyl)butyl group, an isopentyl group, a neopentyl group, a tert-pentyl group, a (2-methyl)pentyl group, a (1-ethyl)pentyl group, a (3-ethyl)pentyl group, a (1-propyl)pentyl group, a (1-butyl)pentyl group, group, isohexyl group, (2-methyl)hexyl group, (5-methyl)hexyl group, (2-ethyl)hexyl group, (1-butyl)hexyl group, (1-pentyl)hexyl group, (2-methyl)heptyl group, (2-ethyl)heptyl group, (3-ethyl)heptyl group, (1-hexyl)heptyl group, (2-methyl)octyl group, (2-ethyl)octyl group, (1-heptyl)octyl group , (2-ethyl)nonyl, (1-octyl)nonyl, and other branched alkyl groups; vinyl, 1-propenyl, 2-propenyl (allyl), (1-methyl)ethenyl, 2-butenyl, 3-butenyl, 1,3-butadienyl, (1-(2-propenyl))ethenyl, (1,2-dimethyl)propenyl, 2-pentenyl, and other alkenyl groups. The number of carbon atoms in the saturated chain hydrocarbon group is preferably 1 to 18, more preferably 2 to 15, and even more preferably 3 to 12. The number of carbon atoms in the unsaturated chain hydrocarbon group is preferably 2 to 18, more preferably 2 to 15, and even more preferably 3 to 12.

[0014] R a1Examples of the saturated or unsaturated alicyclic hydrocarbon group represented by the formula (1) include cycloalkyl groups such as cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, and cyclooctyl group; cycloalkenyl groups such as cyclohexenyl group (e.g., cyclohex-2-ene, cyclohex-3-ene), cycloheptenyl group, and cyclooctenyl group; norbornyl group, adamantyl group, and bicyclo[2.2.2]octyl group. The number of carbon atoms in the saturated or unsaturated alicyclic hydrocarbon group is preferably 3 to 15, and more preferably 3 to 12.

[0015] R a1 Examples of the aromatic hydrocarbon group represented by the formula (I) include a phenyl group, a 1-naphthyl group, a 2-naphthyl group, a phenanthryl group, an anthryl group, a pyrenyl group, etc. The aromatic hydrocarbon group preferably has 6 to 15 carbon atoms, and more preferably has 6 to 12 carbon atoms.

[0016] R a1The hydrocarbon group represented by the formula (I) may be a group obtained by combining two or more of the chain hydrocarbon groups, alicyclic hydrocarbon groups, and aromatic hydrocarbon groups listed above, so long as the upper limit of the carbon number is 20. Such a group may be, for example, a group obtained by combining an aromatic hydrocarbon group with at least one group selected from a chain hydrocarbon group, an alicyclic hydrocarbon group, and an aromatic hydrocarbon group, and in such a combined hydrocarbon group, the chain hydrocarbon group may be combined as a divalent group (for example, an alkanediyl group). Examples of the hydrocarbon groups obtained by the above combinations include aralkyl groups such as benzyl, (2,4,5-trimethylphenyl)methyl, phenethyl, 1-methyl-1-phenylethyl, and (2,4,5-triethylphenyl)ethyl; arylalkenyl groups such as phenylethenyl (phenylvinyl); arylalkynyl groups such as phenylethynyl; o-tolyl, m-tolyl, p-tolyl, 2-ethylphenyl, 3-ethylphenyl, 4-ethylphenyl, 2,3-dimethylphenyl, 2,4-dimethylphenyl, 2,5-dimethylphenyl, 2,6-dimethylphenyl, 3,4-dimethylphenyl, 3,5-dimethylphenyl, 2,3,5,6-tetramethylphenyl, o-isopropylphenyl, m-isopropylphenyl, and p-isopropylphenyl. alkylaryl groups such as a 2,3-diisopropylphenyl group, a 2,4-diisopropylphenyl group, a 2,5-diisopropylphenyl group, a 2,6-diisopropylphenyl group, a 2,4,6-triisopropylphenyl group, a 4-butylphenyl group, an o-tert-butylphenyl group, an m-tert-butylphenyl group, a p-tert-butylphenyl group, a 2,6-di(tert-butyl)phenyl group, a 3,5-di(tert-butyl)phenyl group, a 3,6-di(tert-butyl)phenyl group, a 4-tert-butyl-2,6-dimethylphenyl group, a 4-pentylphenyl group, a 4-octylphenyl group, a 4-(2,4,4-trimethyl-2-pentyl)phenyl group, a 2-dodecylphenyl group, a 3-dodecylphenyl group, and a 4-dodecylphenyl group; and alkenylaryl groups such as a 4-vinylphenyl group.Examples of the aryl group include an aryl group having an alkanediyl group bonded thereto, such as a 2,3-dihydro-4-indenyl group, a 1,2,3,5,6,7-hexahydro-4-s-indacenyl group, an 8-methyl-1,2,3,5,6,7-hexahydro-4-s-indacenyl group, a 5,6,7,8-tetrahydro-1-naphthyl group, a 5,6,7,8-tetrahydro-2-naphthyl group, a 3-methyl-5,6,7,8-tetrahydro-2-naphthyl group, or a 3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydro-2-naphthyl group; an aryl group having one or more aryl groups bonded thereto, such as a biphenyl group or a terphenylyl group; a cyclohexylmethylphenyl group, a benzylphenyl group, or a (dimethyl(phenyl)methyl)phenyl group. The hydrocarbon group may be, for example, a hydrocarbon group formed by combining a chain hydrocarbon group and an alicyclic hydrocarbon group, and examples thereof include a 1-methylcyclopropyl group, a 1-methylcyclohexyl group, a 2-methylcyclohexyl group, a 3-methylcyclohexyl group, a 4-methylcyclohexyl group, a 1,2-dimethylcyclohexyl group, a 1,3-dimethylcyclohexyl group, a 1,4-dimethylcyclohexyl group, a 2,3-dimethylcyclohexyl group, a 2,4-dimethylcyclohexyl group, a 2,5-dimethylcyclohexyl group, a 2,6-dimethylcyclohexyl group, and the like. alicyclic hydrocarbon groups to which one or more alkyl groups or alicyclic hydrocarbon groups are bonded, such as a cyclohexyl group, a 3,4-dimethylcyclohexyl group, a 3,5-dimethylcyclohexyl group, a 2,2-dimethylcyclohexyl group, a 3,3-dimethylcyclohexyl group, a 4,4-dimethylcyclohexyl group, a 2,4,6-trimethylcyclohexyl group, a 2,2,6,6-tetramethylcyclohexyl group, a 3,3,5,5-tetramethylcyclohexyl group, a 4-pentylcyclohexyl group, a 4-octylcyclohexyl group, or a 4-cyclohexylcyclohexyl group;Examples of such alkyl groups include alkyl groups having one or more alicyclic hydrocarbon groups bonded thereto, such as a cyclopropylmethyl group, a cyclopropylethyl group, a cyclobutylmethyl group, a cyclobutylethyl group, a cyclopentylmethyl group, a cyclopentylethyl group, a cyclohexylmethyl group, a 2-methylcyclohexylmethyl group, a cyclohexylethyl group, and an adamantylmethyl group. The number of carbon atoms in the group obtained by combining two or more chain hydrocarbon groups, alicyclic hydrocarbon groups, and aromatic hydrocarbon groups is preferably 6 to 18, and more preferably 6 to 15.

[0017] R a1 Examples of the substituent that the hydrocarbon group having 1 to 20 carbon atoms represented by the formula (I) may have include a halogen atom, a nitrile group, a nitro group, an amino group, a hydroxy group, an alkoxy group having 1 to 20 carbon atoms, such as a methoxy group or an ethoxy group, an aryloxy group having 6 to 20 carbon atoms, such as a phenyloxy group, a 1-naphthyloxy group or a 2-naphthyloxy group, a thiol group, an alkylthio group having 1 to 20 carbon atoms, such as a methylthio group or an ethylthio group, an allylthio group, an arylthio group having 6 to 20 carbon atoms, such as a phenylthio group, a 1-naphthylthio group or a 2-naphthylthio group, a sulfoxy group, an alkylsulfoxy group having 1 to 20 carbon atoms, such as a methylsulfoxy group or an ethylsulfoxy group, an arylsulfoxy group having 6 to 20 carbon atoms, such as a phenylsulfoxy group, a 1-naphthylsulfoxy group or a 2-naphthylsulfoxy group, a silyl group, a boryl group, a monomethylamino group, a dimethyl ... arylamino groups having 6 to 20 carbon atoms, such as a monophenylamino group, a diphenylamino group, and a triphenylamino group; aralkylamino groups having 7 to 20 carbon atoms, such as a benzylamino group; a carboxy group; a carbamoyl group; alkylcarbonyl groups having 2 to 20 carbon atoms, such as an acetyl group and a propionyl group; arylcarbonyl groups having 7 to 20 carbon atoms, such as a benzoyl group, a 1-naphthylcarbonyl group, and a 2-naphthylcarbonyl group; alkoxycarbonyl groups having 2 to 20 carbon atoms, such as a methoxycarbonyl group and an ethoxycarbonyl group; and aryloxycarbonyl groups having 7 to 20 carbon atoms, such as a phenyloxycarbonyl group, a 1-naphthyloxycarbonyl group, and a 2-naphthyloxycarbonyl group.

[0018] The halogen atom includes a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, etc. From the viewpoint of synthesis, a chlorine atom and a bromine atom are preferred.

[0019] R a1 Examples of the group include groups represented by the following formulae (D-1) to (D-47) and (G-1) to (G-22), in which * represents a bond.

[0020] [ka]

[0021] [ka]

[0022] R 1 ~R 8 -OR a1 As for the above R a1 Examples of the oxy group include an alkoxy group having 1 to 20 carbon atoms and an aryloxy group having 6 to 20 carbon atoms. a1 Specific examples of the aryl group include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentyloxy group, a phenoxy group, and a naphthyloxy group.

[0023] R 1 ~R 8 Examples of the halogen atom as include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, etc. From the viewpoint of synthesis, a chlorine atom and a bromine atom are preferred.

[0024] R 1 ~R 8 Represented by -CO-OR a1 As for the above R a1 Examples of the alkyl group include an alkoxycarbonyl group having 2 to 21 carbon atoms and an aryloxycarbonyl group having 7 to 21 carbon atoms. a1R has a1 is preferably a saturated chain hydrocarbon group, a saturated alicyclic hydrocarbon group, a group combining an alicyclic hydrocarbon group and a chain hydrocarbon group, an aromatic hydrocarbon group, or a group combining an aromatic hydrocarbon group and a chain hydrocarbon group, more preferably a saturated chain hydrocarbon group having 1 to 20 carbon atoms, a saturated alicyclic hydrocarbon group having 3 to 15 carbon atoms, a group combining an alicyclic hydrocarbon group having 4 to 15 carbon atoms and a chain hydrocarbon group, an aromatic hydrocarbon group having 6 to 20 carbon atoms, or a group combining an aromatic hydrocarbon group having 7 to 20 carbon atoms and a chain hydrocarbon group, and even more preferably a saturated chain hydrocarbon group having 3 to 18 carbon atoms, a group combining an alicyclic hydrocarbon group having 4 to 10 carbon atoms and a chain hydrocarbon group, or a group combining an aromatic hydrocarbon group having 7 to 15 carbon atoms and a chain hydrocarbon group. a1 Specific examples of the aryloxycarbonyl group include a methoxycarbonyl group, an ethoxycarbonyl group, a propoxycarbonyl group, a sec-butoxycarbonyl group, a tert-butoxycarbonyl group, a butoxycarbonyl group, a pentyloxycarbonyl group, a (1-ethyl)pentyloxycarbonyl group, a hexyloxycarbonyl group, a (2-ethyl)hexyloxycarbonyl group, a heptyloxycarbonyl group, a (1-butyl)heptyloxycarbonyl group, an octyloxycarbonyl group, a (1-heptyl)octyloxycarbonyl group, a nonyloxycarbonyl group, and the like. Examples of the alkyl group include an oxycarbonyl group, a decyloxycarbonyl group, an undecyloxycarbonyl group, a dodecyloxycarbonyl group, a tridecyloxycarbonyl group, a tetradecyloxycarbonyl group, a pentadecyloxycarbonyl group, a hexadecyloxycarbonyl group, a heptadecyloxycarbonyl group, an octadecyloxycarbonyl group, a phenyloxycarbonyl group, a benzyloxycarbonyl group, a cyclohexyloxycarbonyl group, a cyclohexylmethoxycarbonyl group, and an icosyloxycarbonyl group.

[0025] R 1 ~R 8 Represented by -O-CO-R a1 As for the above R a1Examples of the carbonyloxy group include an alkylcarbonyloxy group having 2 to 21 carbon atoms and an arylcarbonyloxy group having 7 to 21 carbon atoms. a1 Specific examples of the carbonyloxy group include a methylcarbonyloxy group, an ethylcarbonyloxy group, a propylcarbonyloxy group, a butylcarbonyloxy group, a pentylcarbonyloxy group, a hexylcarbonyloxy group, a (2-ethyl)hexylcarbonyloxy group, a phenylcarbonyloxy group, and a cyclohexylcarbonyloxy group.

[0026] R 1 ~R 8 Represented by -CO-R a1 As for the above R a1 Examples of the carbonyl group include an alkylcarbonyl group having 2 to 21 carbon atoms and an arylcarbonyl group having 7 to 21 carbon atoms. a1 Specific examples of the alkyl group include an acetyl group, a propionyl group, a butyroyl group, a pentanoyl group, a hexanoyl group, a cyclohexanoyl group, and a benzoyl group.

[0027] R 7 and R 8 Examples of the ring formed by bonding with each other include groups represented by the following formulae (H-1) to (H-4).

[0028] [ka] [In formulas (H-1) to (H-4), R 12 ~R 24 are each independently a hydrogen atom, -R a2 , -OR a2 , halogen atom, hydroxy group, carboxy group, -CO-OR a2 , -O-CO-R a2 , -CO-R a2 or a nitro group; R a2 represents a hydrocarbon group having 1 to 20 carbon atoms which may have a substituent. * stands for R7 represents a bond held by, and ** represents R 8 represents a bond possessed by

[0029] R a2 The hydrocarbon group having 1 to 20 carbon atoms and optionally having a substituent represented by the formula: a1 The examples of the hydrocarbon group having 1 to 20 carbon atoms and which may have a substituent represented by the following formula (I) include the same groups as those explained above as the hydrocarbon group having 1 to 20 carbon atoms and which may have a substituent represented by the following formula (I), and the preferred embodiments thereof are also the same.

[0030] R 12 ~R 24 Examples of the halogen atom as include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, etc. From the viewpoint of synthesis, a chlorine atom and a bromine atom are preferred.

[0031] R 12 ~R 24 -OR as a2 , -CO-OR a2 , -O-CO-R a2 , and -CO-R a2 As for R 1 ~R 8 -OR a1 , -CO-OR a1 , -O-CO-R a1 , and -CO-R a1 Examples of the groups include those described above.

[0032] R 12 ~R 24 Each of the groups is independently a hydrogen atom, -R a2 , a halogen atom, or a hydroxy group, and more preferably a hydrogen atom.

[0033] In formula (I), n R 1 may be the same or different, but are preferably the same, and n R 2 may be the same or different, but are preferably the same, and n R 3 may be the same or different, but are preferably the same, and n R 4may be the same or different, but are preferably the same, and n R 5 may be the same or different, but are preferably the same, and n R 6 may be the same or different, but are preferably the same, and n R 7 may be the same or different, but are preferably the same, and n R 8 may be the same or different, but is preferably the same.

[0034] L 1 The n-valent linking group represented by the formula (I) is preferably an n-valent organic group, and more preferably an n-valent hydrocarbon group which may have a substituent. The n-valent hydrocarbon group is a group in which n hydrogen atoms constituting a hydrocarbon are replaced by bonds. It is preferable that the n bonds are present on different carbon atoms. In the n-valent hydrocarbon group, the methylene group constituting the hydrocarbon may be replaced by -O-, -C(=O)-, etc., and the methylene group having the bond may be replaced by -O-, -C(=O)-, etc. The number of carbon atoms in the hydrocarbon is preferably 1 to 20.

[0035] Examples of the n-valent hydrocarbon group include an n-valent linear hydrocarbon group, an n-valent alicyclic hydrocarbon group, an n-valent aromatic hydrocarbon group, and an n-valent group formed by combining two or more linear hydrocarbon groups, alicyclic hydrocarbon groups, and aromatic hydrocarbon groups.

[0036] The n-valent chain hydrocarbon group is the above-mentioned R a1 Examples of such groups include groups in which n-1 hydrogen atoms in a monovalent saturated or unsaturated chain hydrocarbon group represented by the following formula are replaced with bonds: The number of carbon atoms in the n-valent saturated chain hydrocarbon group is preferably 1 to 15, more preferably 1 to 10, and even more preferably 1 to 8. The number of carbon atoms in the n-valent unsaturated chain hydrocarbon group is preferably 2 to 15, more preferably 2 to 10, and even more preferably 2 to 8.

[0037] The n-valent chain hydrocarbon group is preferably an n-valent saturated chain hydrocarbon group, and more preferably an alkanediyl group such as a methylene group, an ethylene group, a propane-1,2-diyl group, a propane-1,3-diyl group, a butane-1,4-diyl group, a pentane-1,5-diyl group, or a hexane-1,6-diyl group.

[0038] The n-valent alicyclic hydrocarbon group is the above-mentioned R a1 and n-1 hydrogen atoms of a monovalent saturated or unsaturated alicyclic hydrocarbon group represented by the following formula (1): The n-valent alicyclic hydrocarbon group preferably has 3 to 15 carbon atoms, more preferably 3 to 12 carbon atoms, and further preferably 3 to 8 carbon atoms.

[0039] The n-valent alicyclic hydrocarbon group is preferably an n-valent saturated alicyclic hydrocarbon group, and more preferably a divalent saturated alicyclic hydrocarbon group such as a cyclohexyl-1,2-diyl group or a cyclohexyl-1,4-diyl group.

[0040] The n-valent aromatic hydrocarbon group is the same as R a1 In the present invention, the n-1 hydrogen atoms of a monovalent aromatic hydrocarbon group represented by the following formula are substituted with bonds: The n-valent aromatic hydrocarbon group preferably has 6 to 15 carbon atoms, and more preferably has 6 to 12 carbon atoms.

[0041] As the n-valent aromatic hydrocarbon group, an n-valent benzene such as a 1,2-phenylene group, a 1,4-phenylene group, or a benzene-1,2,4,5-tetrayl group is preferred, and a phenylene group is more preferred.

[0042] The n-valent group consisting of two or more chain hydrocarbon groups, alicyclic hydrocarbon groups, and aromatic hydrocarbon groups is preferably the above-mentioned R a1 and a group in which n-1 hydrogen atoms of a group in which two or more linear hydrocarbon groups, alicyclic hydrocarbon groups, and aromatic hydrocarbon groups are combined are replaced with bonds, as represented by the following formula: The number of carbon atoms in the n-valent group in which two or more linear hydrocarbon groups, alicyclic hydrocarbon groups, and aromatic hydrocarbon groups are combined is preferably 7 to 18, and more preferably 7 to 15.

[0043] The n-valent group obtained by combining two or more chain-like hydrocarbon groups, alicyclic hydrocarbon groups, and aromatic hydrocarbon groups is preferably an n-valent group obtained by combining an aromatic hydrocarbon group with at least one group selected from a chain-like hydrocarbon group, an alicyclic hydrocarbon group, and an aromatic hydrocarbon group, and more preferably an n-valent group obtained by combining an aromatic hydrocarbon group with a chain-like hydrocarbon group, or an n-valent group obtained by combining an aromatic hydrocarbon group with an aromatic hydrocarbon group. Specific examples of the n-valent group obtained by combining two or more chain-like hydrocarbon groups, alicyclic hydrocarbon groups, and aromatic hydrocarbon groups include groups represented by the following formulas.

[0044] [ka] [In the above formula, R p11 ~R p14 , R p21 ~R p22 , R p41 ~R p44 , R p51 ~R p52 , R q11 ~R q14 , R q21 ~R q28 , and R q31 ~R q38 are each independently a hydrogen atom or -R a3 However, R q11 ~R q14 At least one of them is -R a3 Represents. R a3 represents a hydrocarbon group having 1 to 20 carbon atoms, and a methylene group constituting the hydrocarbon group may be replaced with -O- or -C(=O)-. * indicates a bond to the nitrogen atom.]

[0045] R a3 The hydrocarbon group having 1 to 20 carbon atoms represented by R a1 Examples of the hydrocarbon group having 1 to 20 carbon atoms and represented by the formula R a3As the alkyl group, it is preferable that it is a linear or branched alkyl group, it is more preferable that it is a linear or branched alkyl group having 1 to 10 carbon atoms, it is even more preferable that it is a linear or branched alkyl group having 1 to 4 carbon atoms, and it is even more preferable that it is a linear alkyl group having 1 to 4 carbon atoms.

[0046] Examples of the group in which a methylene group constituting a hydrocarbon group is replaced with -O- or -C(=O)- include groups represented by the following formula: In the following formula, * represents a bond.

[0047] [ka]

[0048] [ka]

[0049] [ka]

[0050] The halogen atom includes a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, etc. From the viewpoint of synthesis, a chlorine atom and a bromine atom are preferred.

[0051] R p11 ~R p14 , R p21 ~R p22 , R p41 ~R p44 , R p51 ~R p52 , R q11 ~R q14 , R q21 ~R q28 , and R q31 ~R q38 are each preferably independently a hydrogen atom or an alkyl group, and more preferably a hydrogen atom or a linear alkyl group having 1 to 4 carbon atoms.

[0052] Examples of the substituent that the n-valent hydrocarbon group may have include a halogen atom; a nitrile group; a nitro group; an amino group; an alkylamino group having 1 to 20 carbon atoms, such as a monomethylamino group, a dimethylamino group, a trimethylamino group, a monoethylamino group, a diethylamino group, or a triethylamino group; an arylamino group having 6 to 20 carbon atoms, such as a monophenylamino group, a diphenylamino group, or a triphenylamino group; and an aralkylamino group having 7 to 20 carbon atoms, such as a benzylamino group.

[0053] In formula (I), R 1 and R 2 are preferably, independently of each other, a saturated chain hydrocarbon group which may have a substituent; an aromatic hydrocarbon group which may have a substituent; or a group in which an aromatic hydrocarbon group and a chain hydrocarbon group which may have a substituent are combined. From the viewpoint of improving the solubility of compound (I) in a solvent, the saturated chain hydrocarbon group is preferably a saturated branched chain hydrocarbon group. The saturated chain hydrocarbon group (preferably a saturated branched chain hydrocarbon group) preferably has 1 to 15 carbon atoms, more preferably 3 to 15 carbon atoms. The aromatic hydrocarbon group is preferably a phenyl group. The group in which an aromatic hydrocarbon group and a chain hydrocarbon group are combined is preferably a phenyl group to which a chain hydrocarbon group having 1 to 12 carbon atoms (preferably 1 to 10) is bonded, more preferably a phenyl group to which 2 to 3 chain hydrocarbon groups having 1 to 4 carbon atoms are bonded, and even more preferably a phenyl group to which chain hydrocarbon groups having 1 to 4 carbon atoms are bonded to two ortho positions. Among them, R 1 and R 2are more preferably, each independently, a group represented by the above formula (D-4) to formula (D-14), or formula (G-5) to formula (G-22), further preferably, each independently, a group represented by any one of formulas (D-4) to (D-14), (G-5), (G-7), (G-8), (G-11) to (G-13), (G-15), (G-16), (G-19), (G-21), or (G-22), and particularly preferably, each independently, a group represented by any one of formulas (D-4) to (D-14), (G-7), (G-11), (G-13), (G-15), or (G-16). Also, R 1 and R 2 are preferably the same group.

[0054] In formula (I), R 3 ~R 8 are each preferably, independently, a hydrogen atom, a halogen atom, or a hydroxyl group, and more preferably a hydrogen atom.

[0055] In formula (I), L 1 is preferably an alkanediyl group which may have a substituent, an n-valent saturated alicyclic hydrocarbon group which may have a substituent, an n-valent benzene which may have a substituent, any of the groups represented by the above formulae (Lp-1) to (Lp-6) which may have a substituent, or any of the groups represented by the above formulae (Lq-1) to (Lq-3) which may have a substituent. 1 is more preferably a group containing at least an aromatic ring, and further preferably an n-valent benzene which may have a substituent, any one of the groups represented by the above formulas (Lp-1) to (Lp-6) which may have a substituent, or any one of the groups represented by the above formulas (Lq-1) to (Lq-3) which may have a substituent.

[0056] Among them, L 1 is preferably an n-valent linking group containing an aromatic ring, and a carbon atom constituting the aromatic ring has a bond, that is, L 1is preferably an n-valent linking group containing an aromatic ring, in which a carbon atom constituting the aromatic ring is directly bonded to a nitrogen atom. As an n-valent linking group containing an aromatic ring, in which a carbon atom constituting the aromatic ring is directly bonded to a nitrogen atom, an n-valent benzene which may have a substituent; an alkylaryl group which may have a substituent, in which n-1 hydrogen atoms among hydrogen atoms bonded to carbon atoms constituting the aromatic ring are removed to become a bond; or an n-valent biphenyl which may have a substituent. As an n-valent linking group containing an aromatic ring, in which a carbon atom constituting the aromatic ring is directly bonded to a nitrogen atom, specific examples include groups represented by the following formulae (Lr-1) to (Lr-6), and the like, and groups represented by formula (Lr-1), formula (Lr-3), formula (Lr-4), or formula (Lr-5) are preferred, and a group represented by formula (Lr-1) is more preferred.

[0057] [ka] [In the above formula, R r11 ~R r14 , R r21 ~R r23 , R r31 ~R r32 , R r41 ~R r48 , R r51 ~R r58 , and R r61 ~R r66 are each independently a hydrogen atom, -R a4 , a halogen atom, or a nitro group. R a4 represents a hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, and a methylene group constituting the hydrocarbon group may be replaced by -O- or -C(=O)-. * indicates a bond to the nitrogen atom.]

[0058] R a4 The hydrocarbon group having 1 to 20 carbon atoms represented by R a3 The examples of the hydrocarbon group having 1 to 20 carbon atoms and represented by the following formula include the same groups as those explained above, and the preferred embodiments thereof are also the same.

[0059] The halogen atom includes a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, etc. From the viewpoint of synthesis, a chlorine atom and a bromine atom are preferred.

[0060] R r11 ~R r14 , R r21 ~R r23 , R r31 ~R r32 , R r41 ~R r48 , R r51 ~R r58 , and R r61 ~R r66 are each independently a hydrogen atom, -R a4 or a halogen atom is preferred, and a hydrogen atom or -R a4 is more preferable, and a hydrogen atom or a linear alkyl group having 1 to 4 carbon atoms is even more preferable.

[0061] In formula (I), n is preferably an integer of 2 to 4, and more preferably 2 or 4.

[0062] Compound (I) is preferably a compound represented by the following formula (Ia) (hereinafter, may be referred to as compound (Ia)). Compound (Ia) is also included in the present invention.

[0063] [ka] [In formula (Ia), R 1 ~R 8 and n have the same meaning as above. N x represents a nitrogen atom. L 2 represents an n-valent linking group containing an aromatic ring, and the carbon atoms constituting the aromatic ring are N x ]

[0064] L 2 As for the L1 In the above formula, the n-valent linking group contains an aromatic ring, and a carbon atom constituting the aromatic ring is directly bonded to a nitrogen atom. Preferred embodiments thereof are also the same.

[0065] Specific examples of compound (I) include compounds (I-1) to (I-24) shown in Table 1 below.

[0066] [Table 1]

[0067] In Table 1, H represents a hydrogen atom. D-6, D-13, and G-7 respectively represent groups represented by the above formulae (D-6), (D-13), and (G-7). L-1 to L-8 respectively represent groups represented by the following formulae (L-1) to (L-8), in which * represents a bond to a nitrogen atom.

[0068] [ka]

[0069] Compound (I) is preferably compounds (I-17) to (I-24), and more preferably compounds (I-17) to (I-19).

[0070] Compound (I) can be produced, for example, by reacting a compound represented by the following formula (pt1) with maleic anhydride in the presence of a dehydrogenating agent to produce a compound represented by formula (pt2), reacting the obtained compound represented by formula (pt2) with a compound represented by formula (MA1) to produce a compound represented by formula (pt3), and then reacting the obtained compound represented by formula (pt3) with a compound represented by formula (pt2').

[0071] [ka] [In the formula, R 1 ~R 8 , L 1 , and n are as defined above.]

[0072] The compound represented by formula (pt1) is, for example, N 1 ,N 2 -Bis(2,6-diisopropylphenyl)perylene-3,4,9,10-tetracarboxylic diimide, N 1 ,N 2 -Bis(5-nonyl)perylene-3,4,9,10-tetracarboxylic diimide, N 1 ,N 2 -Bis(6-undecyl)perylene-3,4,9,10-tetracarboxylic diimide, N 1 ,N 2 -bis(7-tridecyl)perylene-3,4,9,10-tetracarboxylic diimide and the like.

[0073] The amount of maleic anhydride used is usually 1 mole or more and 1,000 moles or less, preferably 1 mole or more and 800 moles or less, more preferably 1 mole or more and 600 moles or less, and even more preferably 1 mole or more and 400 moles or less, relative to 1 mole of the compound represented by formula (pt1).

[0074] The dehydrogenation agent is a dehydrogenation agent that removes hydrogen from a 6-membered ring compound to aromaticize the compound. As the dehydrogenation agent, chloranil, p-benzoquinone, 2,5-dichloro-p-quinone, 2,3-dichloro-5,6-dicyano-1,4-benzoquinone, tetramethyl-p-quinone, 2,5-diphenyl-p-quinone, and bromanil are preferred, and chloranil and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone are more preferred.

[0075] The amount of the dehydrogenation agent used is usually 1 mole or more and 10 moles or less, and preferably 1 mole or more and 5 moles or less, relative to 1 mole of the compound represented by formula (pt1).

[0076] The reaction temperature when the compound represented by formula (pt1) is reacted with maleic anhydride is, for example, -100°C or higher and 300°C or lower.

[0077] The compound represented by formula (pt3) can be produced by reacting the compound represented by formula (pt2) with the compound represented by formula (MA1). 1 Examples of such compounds include 1,4-phenylenediamine and 2,3,5,6-tetramethyl-1,4-phenylenediamine.

[0078] The amount of the compound represented by formula (pt2) used may be appropriately adjusted depending on n, but is usually 0.1 mol or more and 10 mol or less, and preferably 0.2 mol or more and 5 mol or less, relative to 1 mol of the compound represented by formula (MA1).

[0079] The reaction between the compound represented by formula (pt2) and the compound represented by formula (MA1) is preferably carried out in the presence of an acid catalyst, preferably a carboxylic acid such as acetic acid, propionic acid, butyric acid, pentanoic acid, hexanoic acid, or heptanoic acid.

[0080] The amount of the acid catalyst used is usually 1 mol or more and 1,000 mol or less, preferably 1 mol or more and 800 mol or less, more preferably 1 mol or more and 600 mol or less, and even more preferably 1 mol or more and 400 mol or less, relative to 1 mol of the compound represented by formula (MA1).

[0081] The reaction temperature when reacting the compound represented by formula (pt2) with the compound represented by formula (MA1) is, for example, -100°C or higher and 300°C or lower.

[0082] Compound (I) can be produced by reacting a compound represented by formula (pt3) with a compound represented by formula (pt2'). The compound represented by formula (pt2') may be produced in the same manner as the compound represented by formula (pt2) described above. 1 and R in formula (pt3)1 may be the same or different. 2 ~R 8 Similarly, R in formula (pt3) 2 ~R 8 may be the same as or different from.

[0083] The amount of the compound represented by formula (pt2') used may be appropriately adjusted depending on n, but is usually 1 mole or more and 20 moles or less, preferably 1 mole or more and 10 moles or less, and more preferably 1 mole or more and 5 moles or less, relative to 1 mole of the compound represented by formula (pt3).

[0084] The reaction between the compound represented by formula (pt3) and the compound represented by formula (pt2') is preferably carried out in the presence of an acid catalyst, preferably a carboxylic acid such as acetic acid, propionic acid, butyric acid, pentanoic acid, hexanoic acid, or heptanoic acid.

[0085] The amount of the acid catalyst used is usually 1 mole or more and 1,000 moles or less, preferably 1 mole or more and 800 moles or less, more preferably 1 mole or more and 600 moles or less, and even more preferably 1 mole or more and 400 moles or less, relative to 1 mole of the compound represented by formula (pt3).

[0086] The reaction temperature when reacting the compound represented by formula (pt3) with the compound represented by formula (pt2') is, for example, -100°C or higher and 300°C or lower.

[0087] After the reaction is completed, the method for extracting compound (I) is not particularly limited, and it can be extracted by various known methods. After extraction, the obtained residue may be purified by column chromatography or recrystallization. The chemical structure of the obtained compound can be analyzed by known analytical methods and their conditions. Such analytical methods include, but are not limited to, X-ray crystal structure analysis, mass spectrometry (LC), NMR analysis, and elemental analysis.

[0088] The content of compound (I) is preferably 0.1 mass% or more and 50 mass% or less, more preferably 0.5 mass% or more and 40 mass% or less, and even more preferably 1 mass% or more and 30 mass% or less, based on the total amount of solids in the colored resin composition. Here, the term "total amount of solids" in this specification refers to the amount obtained by subtracting the content of the solvent from the total amount of the colored resin composition. The total amount of solids and the content of each component relative thereto can be measured by a known analytical means such as liquid chromatography or gas chromatography.

[0089] <<Colorant (A1)>> The colored resin composition of the present invention may contain a dye other than the compound (I) (hereinafter, may be referred to as dye (A1-1)) and / or a pigment (hereinafter, may be referred to as pigment (A1-2)) as the colorant (A). Hereinafter, the dye (A1-1) and the pigment (A1-2) may be collectively referred to as colorant (A1). These may be used alone or in combination of two or more kinds.

[0090] The dye (A1-1) is not particularly limited, and known dyes can be used as long as it does not include the compound (I), and examples thereof include solvent dyes, acid dyes, direct dyes, and mordant dyes. Examples of dyes include compounds classified as dyes in the Color Index (published by The Society of Dyers and Colourists) and known dyes described in Dyeing Notes (Shikisensha). In addition, examples of dyes that can be used according to chemical structure include azo dyes, cyanine dyes, triphenylmethane dyes, xanthene dyes, anthraquinone dyes, naphthoquinone dyes, quinoneimine dyes, methine dyes, azomethine dyes, squarylium dyes, acridine dyes, styryl dyes, coumarin dyes, quinoline dyes, nitro dyes, and phthalocyanine dyes. Among these, organic solvent-soluble dyes are preferred.

[0091] Specific examples of the dye (A1-1) include: CI Solvent Yellow 4, 14, 15, 23, 24, 25, 38, 62, 63, 68, 79, 81, 82, 83, 89, 94, 98, 99, 117, 162, 163, 167, 189; CI Solvent Red 24, 45, 49, 90, 91, 111, 118, 119, 122, 124, 125, 127, 130, 132, 143, 145, 146, 150, 151, 155, 160, 168, 169, 172, 175, 181, 207, 218, 222, 227, 230, 245, 247; CI Solvent Orange 2, 7, 11, 15, 26, 41, 54, 56, 77, 86, 99; CI Solvent Violet 11, 13, 14, 26, 31, 36, 37, 38, 45, 47, 48, 51, 59, 60; CI Solvent Blue 4, 5, 14, 18, 35, 36, 37, 38, 44, 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, 139; CI Solvent dyes such as CI Solvent Green 1, 3, 4, 5, 7, 28, 29, 32, 33, 34, 35; CI Acid Yellow 1, 3, 7, 9, 11, 17, 23, 25, 29, 34, 36, 38, 40, 42, 54, 65, 72, 73, 76, 79, 98, 99, 111, 112, 113, 114, 116, 119, 123, 128, 134, 135, 138, 139, 140, 144, 150, 155, 157, 160, 161, 163, 168, 169, 172, 177, 178, 179, 184, 190, 193, 196, 197, 199, 202, 203, 204, 205, 207, 212, 214, 220, 221, 228, 230, 232, 235, 238, 240, 242, 243, 251; CI Acid Red 1, 4, 8, 14, 17, 18, 26, 27, 29, 31, 33, 34, 35, 37, 40, 42, 44, 50, 51, 52, 57, 66, 73, 76, 80, 87, 88, 91, 92, 94, 95, 97, 98, 103, 106, 111, 114, 129, 133, 134, 138, 143, 145, 150, 151, 155, 158, 160, 172, 176, 1 82, 183, 195, 198, 206, 211, 215, 216, 217, 227, 228, 249, 252, 257, 258, 260, 261, 266, 268, 270, 274, 277, 280, 281, 289, 308, 312, 315, 316, 339, 341, 345, 346, 349, 382, ​​383, 388, 394, 401, 412, 417, 418, 422, 426; CI Acid Orange 6, 7, 8, 10, 12, 26, 50, 51, 52, 56, 62, 63, 64, 74, 75, 94, 95, 107, 108, 149, 162, 169, 173; CI Acid Violet 6B, 7, 9, 15, 16, 17, 19, 21, 23, 24, 25, 30, 34, 38, 49, 72, 102; CI Acid Blue 1, 3, 5, 7, 9, 11, 13, 15, 17, 18, 22, 23, 24, 25, 26, 27, 29, 34, 38, 40, 41, 42, 43, 45, 48, 51, 54, 59, 60, 62, 70, 72, 74, 75, 78, 80, 82, 83, 86, 87, 88, 90, 90:1, 91, 92, 93, 93:1, 96, 99, 100, 102, 103, 104, 108, 109, 110, 112, 113, 117, 119, 120, 123 , 126, 127, 129, 130, 131, 138, 140, 142, 143, 147, 150, 151, 154, 158, 161, 166, 167, 168, 170, 171, 175, 182, 183, 184, 187, 192, 199, 203, 204, 205, 210, 213, 229, 234, 236, 242, 243, 249, 256, 259, 267, 269, 278, 280, 285, 290, 296, 315, 324:1, 335, 340; CI Acid dyes such as CI Acid Green 1, 3, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 22, 25, 27, 28, 41, 50, 50:1, 58, 63, 65, 80, 104, 105, 106, 109; CI Direct Yellow 2, 4, 28, 33, 34, 35, 38, 39, 43, 44, 47, 50, 54, 58, 68, 69, 70, 71, 86, 93, 94, 95, 98, 102, 108, 109, 129, 132, 136, 138, 141; CI Direct Red 79, 82, 83, 84, 91, 92, 96, 97, 98, 99, 105, 106, 107, 172, 173, 176, 177, 179, 181, 182, 184, 204, 207, 211, 213, 218, 220, 221, 222, 232, 233, 234, 241, 243, 246, 250; CI Direct Orange 26, 34, 39, 41, 46, 50, 52, 56, 57, 61, 64, 65, 68, 70, 96, 97, 106, 107; CI Direct Violet 47, 52, 54, 59, 60, 65, 66, 79, 80, 81, 82, 84, 89, 90, 93, 95, 96, 103, 104; CI Direct Blue 1, 2, 3, 6, 8, 15, 22, 25, 28, 29, 40, 41, 42, 47, 52, 55, 57, 71, 76, 77, 78, 80, 81, 84, 85, 86, 87, 90, 93, 94, 95, 97, 98, 99, 100, 101, 106, 107, 108, 109, 113, 114, 115, 117, 119, 120, 137, 149, 150, 153, 155, 156, 158, 159, 160, 161, 162, 163, 164, 165, 16 6, 167, 168, 170, 171, 172, 173, 188, 189, 190, 192, 193, 194, 195, 196, 198, 199, 200, 201, 202, 203, 207, 209, 210, 212, 213, 214, 222, 225, 226, 228, 229, 236, 237, 238, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 256, 257, 259, 260, 268, 274, 275, 293; CI Direct Dyes, such as CI Direct Green 25, 27, 31, 32, 34, 37, 63, 65, 66, 67, 68, 69, 72, 79, 82; CI Disperse Yellow 51, 54, 76; CI Disperse Violet 26, 27; CI Disperse dyes such as CI Disperse Blue 1, 14, 56, 6;0, etc. CI Basic Red 1, 10; CI 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, 89; CI Basic Violet 2; CI Basic Red 9; CI Basic dyes, such as CI Basic Green 1; CI Reactive Yellow 2, 76, 116; CI Reactive Orange 16; CI Reactive dyes such as CI Reactive Red 36; CI Mordant Yellow 5, 8, 10, 16, 20, 26, 30, 31, 33, 42, 43, 45, 56, 61, 62, 65; CI Mordant Red 1, 2, 3, 4, 9, 11, 12, 14, 17, 18, 19, 22, 23, 24, 25, 26, 27, 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, 95; CI Mordant Orange 3, 4, 5, 8, 12, 13, 14, 20, 21, 23, 24, 28, 29, 32, 34, 35, 36, 37, 42, 43, 47, 48; CI Mordant 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, 58; CI Mordant 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, 84; CI Mordant dyes, such as CI Mordant Green 1, 3, 4, 5, 10, 13, 15, 19, 21, 23, 26, 29, 31, 33, 34, 35, 41, 43, 53; and dyes having Color Index (CI) numbers such as CI Vat dyes, such as CI Vat Green 1;

[0092] The pigment (A1-2) is not particularly limited, and any known pigment can be used as long as it does not contain compound (I). Examples of the pigment include pigments classified as pigments in the Color Index (published by The Society of Dyers and Colourists). Examples of pigments classified as pigments include yellow pigments such as CI 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, 214, and 231; Orange pigments such as CI Pigment Orange 13, 31, 36, 38, 40, 42, 43, 51, 55, 59, 61, 64, 65, 71, 73; Red pigments such as CI Pigment Red 9, 97, 105, 122, 144, 166, 168, 176, 177, 180, 190, 192, 209, 215, 216, 224, 242, 254, 255, 264, 265, 266, 268, 269, 273; Blue pigments such as CI Pigment Blue 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 60; Violet pigments such as CI Pigment Violet 1, 19, 23, 32, 36, 38; Green pigments such as CI Pigment Green 7, 36, 58, 59, 62, 63; Brown pigments such as CI Pigment Brown 23, 25; Black pigments such as CI Pigment Black 1 and 7;

[0093] As the colorant (A1), yellow, red or green dyes and pigments are preferred.

[0094] If necessary, the colorant (A1) may be subjected to a rosin treatment, a surface treatment using a derivative having an acidic or basic group introduced therein, a graft treatment onto the surface of the colorant (A1) using a polymer compound, etc., a particle size reduction treatment using a sulfuric acid atomization method, etc., a washing treatment using an organic solvent or water to remove impurities, a removal treatment of ionic impurities using an ion exchange method, etc. The particle size of the colorant (A1) is preferably approximately uniform.

[0095] When the colorant (A) further contains a colorant (A1), the content of the compound (I) is, for example, 1 mass% or more, preferably 2 mass% or more, more preferably 10 mass% or more, even more preferably 25 mass% or more, and particularly preferably 50 mass% or more, based on the total amount of the colorant (A). When the colorant (A) further contains a colorant (A1), the content of the compound (I) is, for example, less than 100 mass% based on the total amount of the colorant (A).

[0096] When the colored resin composition contains a solvent (E), a colorant-containing liquid (sometimes called a colored composition) containing a colorant (A) and a solvent (E) may be prepared in advance, and then the colored resin composition may be prepared using the colorant-containing liquid. When the colorant (A) is not soluble in the solvent (E), for example, when the colorant (A) contains a pigment (A1-2), the colorant-containing liquid can be prepared by dispersing the colorant (A) in the solvent (E) and mixing. The colorant-containing liquid may contain a part or all of the solvent (E) contained in the colored resin composition.

[0097] The solid content in the colorant-containing liquid is preferably 0.01% by mass or more and 99.99% by mass or less, more preferably 0.1% by mass or more and 99.9% by mass or less, even more preferably 0.1% by mass or more and 99% by mass or less, still more preferably 0.5% by mass or more and 90% by mass or less, and particularly preferably 1% by mass or more and 50% by mass or less, based on the total amount of the colorant-containing liquid.

[0098] The colorant (A) may be made uniformly dispersed in the solution by adding a dispersant and carrying out a dispersion treatment. When two or more types of colorant (A) are used in combination, each may be dispersed alone, or a mixture of multiple types may be dispersed.

[0099] Examples of the dispersant include surfactants, which may be cationic, anionic, nonionic, or amphoteric. Specific examples include polyester, polyamine, and acrylic surfactants. These dispersants may be used alone or in combination of two or more. Examples of the dispersant, in terms of trade name, include KP (manufactured by Shin-Etsu Chemical Co., Ltd.), FLOWRENE (manufactured by Kyoeisha Chemical Co., Ltd.), Solsperse (registered trademark) (manufactured by Zeneca Co., Ltd.), EFKA (registered trademark) (manufactured by BASF), AJISPER (registered trademark) (manufactured by Ajinomoto Fine-Techno Co., Ltd.), Disperbyk (registered trademark) (manufactured by BYK-Chemie Co., Ltd.), and BYK (registered trademark) (manufactured by BYK-Chemie Co., Ltd.). Resin (B) described later may be used as the dispersant.

[0100] When a dispersant is used, the amount of the dispersant (solid content) used is usually 1 part by mass or more and 10,000 parts by mass or less, preferably 5 parts by mass or more and 5,000 parts by mass or less, more preferably 10 parts by mass or more and 1,000 parts by mass or less, and even more preferably 15 parts by mass or more and 800 parts by mass or less, relative to 100 parts by mass of the colorant (A). When the amount of the dispersant used is within the above range, a colorant-containing liquid in a more uniformly dispersed state tends to be obtained.

[0101] The content of the colorant (A) is preferably 0.1% by mass or more and 50% by mass or less, more preferably 0.5% by mass or more and 40% by mass or less, and even more preferably 1% by mass or more and 30% by mass or less, based on the total amount of solids in the colored resin composition. When the content of the colorant (A) is within the above range, the color density when made into a color filter is sufficient, and since the necessary amount of the resin (B) can be contained in the composition, a pattern with sufficient mechanical strength can be formed, which is preferable.

[0102] <Resin (B)> Resin (B) is an alkali-soluble resin, and is preferably an alkali-soluble resin having a carboxylic acid. A colored resin composition using an alkali-soluble resin as resin (B) can be suitably used for photoresist applications.

[0103] Examples of the resin (B) include the following resins [K1] to [K6]. Resin [K1]: a copolymer having a structural unit derived from at least one member (a) (hereinafter sometimes referred to as "(a)") selected from the group consisting of unsaturated carboxylic acids and unsaturated carboxylic anhydrides, and a structural unit derived from a monomer (b) (hereinafter sometimes referred to as "(b)") having a cyclic ether structure having 2 to 4 carbon atoms and an ethylenically unsaturated bond; Resin [K2]: a copolymer having a structural unit derived from (a), a structural unit derived from (b), and a structural unit derived from a monomer (c) copolymerizable with (a) (however, different from (a) and (b)) (hereinafter, sometimes referred to as "(c)"); Resin [K3]: a copolymer having structural units derived from (a) and structural units derived from (c); Resin [K4]: a copolymer having a structural unit derived from (a) to which (b) has been added, and a structural unit derived from (c); Resin [K5]: a copolymer having a structural unit derived from (b) to which (a) has been added, and a structural unit derived from (c); Resin [K6]: A copolymer having a structural unit obtained by adding (a) to a structural unit derived from (b) and further adding a carboxylic acid anhydride, and a structural unit derived from (c).

[0104] Examples of the monomer (a) include unsaturated monocarboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, and o-, m-, and p-vinylbenzoic acid; Unsaturated dicarboxylic acids such as maleic acid, fumaric acid, citraconic acid, mesaconic acid, itaconic acid, 3-vinylphthalic acid, 4-vinylphthalic acid, 3,4,5,6-tetrahydrophthalic acid, 1,2,3,6-tetrahydrophthalic acid, dimethyltetrahydrophthalic acid, and 1,4-cyclohexenedicarboxylic acid; Bicyclounsaturated compounds containing a carboxy group, such as methyl-5-norbornene-2,3-dicarboxylic acid, 5-carboxybicyclo[2.2.1]hept-2-ene, 5,6-dicarboxybicyclo[2.2.1]hept-2-ene, 5-carboxy-5-methylbicyclo[2.2.1]hept-2-ene, 5-carboxy-6-methylbicyclo[2.2.1]hept-2-ene and 5-carboxy-6-ethylbicyclo[2.2.1]hept-2-ene; carboxylic acid anhydrides such as the anhydrides of the above unsaturated dicarboxylic acids except fumaric acid and mesaconic acid; Unsaturated mono[(meth)acryloyloxyalkyl] esters of divalent or higher polyvalent carboxylic acids, such as mono[2-(meth)acryloyloxyethyl] succinate and mono[2-(meth)acryloyloxyethyl] phthalate; Unsaturated acrylates containing a hydroxy group and a carboxy group in the same molecule, such as α-(hydroxymethyl)acrylic acid; and the like. Among these, acrylic acid, methacrylic acid, maleic anhydride, etc. are preferred from the standpoint of copolymerization reactivity and solubility of the resulting resin in an aqueous alkaline solution. In this specification, the term "(meth)acrylic acid" refers to at least one selected from the group consisting of acrylic acid and methacrylic acid. The terms "(meth)acryloyl" and "(meth)acrylate" have the same meaning.

[0105] Monomer (b) refers to a polymerizable compound having a cyclic ether structure having 2 to 4 carbon atoms (for example, at least one selected from the group consisting of an oxirane ring, an oxetane ring, and a tetrahydrofuran ring (oxolane ring)) and an ethylenically unsaturated bond. Monomer (b) is preferably a monomer having a cyclic ether having 2 to 4 carbon atoms and a (meth)acryloyloxy group.

[0106] Examples of the monomer (b) include a monomer having an oxiranyl group and an ethylenically unsaturated bond (hereinafter, may be referred to as "monomer (b1)"), a monomer having an oxetanyl group and an ethylenically unsaturated bond (hereinafter, may be referred to as "monomer (b2)"), and a monomer having a tetrahydrofuryl group and an ethylenically unsaturated bond (hereinafter, may be referred to as "monomer (b3)").

[0107] Examples of the monomer (b1) include a monomer having a structure obtained by epoxidizing an unsaturated aliphatic hydrocarbon (hereinafter, may be referred to as "monomer (b1-1)") and a monomer having a structure obtained by epoxidizing an unsaturated alicyclic hydrocarbon (hereinafter, may be referred to as "monomer (b1-2)").

[0108] As the monomer (b1-1), a monomer having a glycidyl group and an ethylenically unsaturated bond is preferable. Specific examples of the monomer (b1-1) include glycidyl (meth)acrylate, β-methyl glycidyl (meth)acrylate, β-ethyl glycidyl (meth)acrylate, glycidyl vinyl ether, o-vinylbenzyl glycidyl ether, m-vinylbenzyl glycidyl ether, p-vinylbenzyl glycidyl ether, α-methyl-o-vinylbenzyl glycidyl ether, α-methyl-m-vinylbenzyl glycidyl ether, α-methyl-p-vinylbenzyl glycidyl ether, 2,3-bis( Examples of such styrene include 2,4-bis(glycidyloxymethyl)styrene, 2,5-bis(glycidyloxymethyl)styrene, 2,6-bis(glycidyloxymethyl)styrene, 2,3,4-tris(glycidyloxymethyl)styrene, 2,3,5-tris(glycidyloxymethyl)styrene, 2,3,6-tris(glycidyloxymethyl)styrene, 3,4,5-tris(glycidyloxymethyl)styrene, and 2,4,6-tris(glycidyloxymethyl)styrene.

[0109] Examples of the monomer (b1-2) include vinylcyclohexene monoxide, 1,2-epoxy-4-vinylcyclohexane (e.g., Celloxide (registered trademark) 2000; manufactured by Daicel Corporation), 3,4-epoxycyclohexylmethyl (meth)acrylate (e.g., Cyclomer (registered trademark) A400; manufactured by Daicel Corporation), 3,4-epoxycyclohexylmethyl (meth)acrylate (e.g., Cyclomer (registered trademark) M100; manufactured by Daicel Corporation), compounds represented by formula (BI) and compounds represented by formula (BII).

[0110] [ka]

[0111] [In formula (BI) and formula (BII), R a and R beach independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and the hydrogen atom contained in the alkyl group may be substituted with a hydroxy group. X a and X b are, independently of each other, a single bond, *-R c -, *-R c -O-, *-R c -S- or *-R c -NH-. R c represents an alkanediyl group having 1 to 6 carbon atoms. * represents a bond to O.]

[0112] Examples of the alkyl group having 1 to 4 carbon atoms include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a sec-butyl group, and a tert-butyl group.

[0113] Examples of the alkyl group in which a hydrogen atom is substituted with a hydroxy group include a hydroxymethyl group, a 1-hydroxyethyl group, a 2-hydroxyethyl group, a 1-hydroxypropyl group, a 2-hydroxypropyl group, a 3-hydroxypropyl group, a 1-hydroxy-1-methylethyl group, a 2-hydroxy-1-methylethyl group, a 1-hydroxybutyl group, a 2-hydroxybutyl group, a 3-hydroxybutyl group, and a 4-hydroxybutyl group.

[0114] R a and R b Preferred examples of the alkyl group include a hydrogen atom, a methyl group, a hydroxymethyl group, a 1-hydroxyethyl group, and a 2-hydroxyethyl group, and more preferred examples include a hydrogen atom and a methyl group.

[0115] Examples of the alkanediyl group include a methylene group, an ethylene group, a propane-1,2-diyl group, a propane-1,3-diyl group, a butane-1,4-diyl group, a pentane-1,5-diyl group, and a hexane-1,6-diyl group.

[0116] X a and X bPreferred examples of the alkyl group include a single bond, a methylene group, an ethylene group, a -CH2-O- (* represents a bond to O) group, and a -CH2CH2-O- group, and more preferred examples include a single bond and a -CH2CH2-O- group (* represents a bond to O).

[0117] The compound represented by formula (BI) includes compounds represented by any one of formulas (BI-1) to (BI-15), etc. Among them, compounds represented by formulas (BI-1), (BI-3), (BI-5), (BI-7), (BI-9) and (BI-11) to (BI-15) are preferred, and compounds represented by formulas (BI-1), (BI-7), (BI-9) and (BI-15) are more preferred.

[0118] [ka]

[0119] Examples of the compound represented by formula (BII) include compounds represented by any of formulas (BII-1) to (BII-15). Among them, compounds represented by formulas (BII-1), (BII-3), (BII-5), (BII-7), (BII-9) and (BII-11) to (BII-15) are preferred, and compounds represented by formulas (BII-1), (BII-7), (BII-9) and (BII-15) are more preferred.

[0120] [ka]

[0121] The compound represented by formula (BI) and the compound represented by formula (BII) may be used alone, or the compound represented by formula (BI) and the compound represented by formula (BII) may be used in combination. When these are used in combination, the content ratio of the compound represented by formula (BI) and the compound represented by formula (BII) is preferably 5:95 to 95:5, more preferably 10:90 to 90:10, and further preferably 20:80 to 80:20 on a molar basis.

[0122] As the monomer (b2) having an oxetanyl group and an ethylenically unsaturated bond, a monomer having an oxetanyl group and a (meth)acryloyloxy group is more preferable. Examples of the monomer (b2) include 3-methyl-3-(meth)acryloyloxymethyloxetane, 3-ethyl-3-(meth)acryloyloxymethyloxetane, 3-methyl-3-(meth)acryloyloxyethyloxetane, and 3-ethyl-3-(meth)acryloyloxyethyloxetane.

[0123] The monomer (b3) having a tetrahydrofuryl group and an ethylenically unsaturated bond is preferably a monomer having a tetrahydrofuryl group and a (meth)acryloyloxy group. Examples of the monomer (b3) include tetrahydrofurfuryl acrylate (e.g., Viscoat V#150, manufactured by Osaka Organic Chemical Industry Co., Ltd.), tetrahydrofurfuryl methacrylate, etc.

[0124] Examples of the monomer (c) include methyl (meth)acrylate, ethyl (meth)acrylate, n-butyl (meth)acrylate, sec-butyl (meth)acrylate, tert-butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, dodecyl (meth)acrylate, lauryl (meth)acrylate, stearyl (meth)acrylate, cyclopentyl (meth)acrylate, cyclohexyl (meth)acrylate, 2-methylcyclohexyl (meth)acrylate, tricyclo[5.2.1.0 2,6 ]decan-8-yl(meth)acrylate (commonly known in the art as "dicyclopentanyl(meth)acrylate" and sometimes called "tricyclodecyl(meth)acrylate"), tricyclo[5.2.1.0 2,6 ]Decan-9-yl (meth)acrylate, tricyclo[5.2.1.0 2,6 ]decene-8-yl(meth)acrylate (known in the art as the common name "dicyclopentenyl(meth)acrylate"), tricyclo[5.2.1.0 2,6](meth)acrylic acid esters such as decene-9-yl (meth)acrylate, dicyclopentanyloxyethyl (meth)acrylate, isobornyl (meth)acrylate, adamantyl (meth)acrylate, allyl (meth)acrylate, propargyl (meth)acrylate, phenyl (meth)acrylate, naphthyl (meth)acrylate, and benzyl (meth)acrylate; 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 itaconate; Bicyclo[2.2.1]hept-2-ene, 5-methylbicyclo[2.2.1]hept-2-ene, 5-ethylbicyclo[2.2.1]hept-2-ene, 5-hydroxybicyclo[2.2.1]hept-2-ene, 5-hydroxymethylbicyclo[2.2.1]hept-2-ene, 5-(2'-hydroxyethyl)bicyclo[2.2.1]hept-2-ene, 5-methoxybicyclo[2.2.1]hept-2-ene chloro[2.2.1]hept-2-ene, 5-ethoxybicyclo[2.2.1]hept-2-ene, 5,6-dihydroxybicyclo[2.2.1]hept-2-ene, 5,6-di(hydroxymethyl)bicyclo[2.2.1]hept-2-ene, 5,6-di(2'-hydroxyethyl)bicyclo[2.2.1]hept-2-ene, 5,6-dimethoxybicyclo[2.2.1]hept bicyclounsaturated compounds such as 5,6-diethoxybicyclo[2.2.1]hept-2-ene, 5-hydroxy-5-methylbicyclo[2.2.1]hept-2-ene, 5-hydroxy-5-ethylbicyclo[2.2.1]hept-2-ene, 5-hydroxymethyl-5-methylbicyclo[2.2.1]hept-2-ene, 5-tert-butoxycarbonylbicyclo[2.2.1]hept-2-ene, 5-cyclohexyloxycarbonylbicyclo[2.2.1]hept-2-ene, 5-phenoxycarbonylbicyclo[2.2.1]hept-2-ene, 5,6-bis(tert-butoxycarbonyl)bicyclo[2.2.1]hept-2-ene and 5,6-bis(cyclohexyloxycarbonyl)bicyclo[2.2.1]hept-2-ene; dicarbonyl imide derivatives such as N-phenylmaleimide, N-cyclohexylmaleimide, N-benzylmaleimide, N-succinimidyl-3-maleimidobenzoate, N-succinimidyl-4-maleimidobutyrate, N-succinimidyl-6-maleimidocaproate, N-succinimidyl-3-maleimidopropionate and N-(9-acridinyl)maleimide; Examples of the vinyl group-containing aromatic compounds include styrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, vinyltoluene, and p-methoxystyrene; vinyl group-containing nitriles such as (meth)acrylonitrile; halogenated hydrocarbons such as vinyl chloride and vinylidene chloride; vinyl group-containing amides such as (meth)acrylamide; esters such as vinyl acetate; and dienes such as 1,3-butadiene, isoprene, and 2,3-dimethyl-1,3-butadiene. Among these, styrene, vinyltoluene, tricyclo[5.2.1.0] and cyclopentadiene are preferred from the viewpoints of copolymerization reactivity and heat resistance. 2,6 ]Decan-8-yl (meth)acrylate, tricyclo[5.2.1.0 2,6 ]Decan-9-yl (meth)acrylate, tricyclo[5.2.1.0 2,6 ]Decen-8-yl (meth)acrylate, tricyclo[5.2.1.0 2,6 ]decen-9-yl(meth)acrylate, N-phenylmaleimide, N-cyclohexylmaleimide, N-benzylmaleimide, bicyclo[2.2.1]hept-2-ene, and benzyl(meth)acrylate are preferred.

[0125] In the resin [K1], the ratio of structural units derived from each of them is as follows among all structural units constituting the resin [K1]: Structural units derived from (a): 2 to 60 mol% Structural units derived from (b): 40 to 98 mol% It is preferred that Structural units derived from (a): 10 to 50 mol% Structural units derived from (b): 50 to 90 mol% It is more preferable that: When the ratio of the structural units of the resin [K1] is within the above range, the colored resin composition tends to have excellent storage stability, developability when forming a colored pattern, and solvent resistance of the obtained color filter.

[0126] Resin [K1] can be produced, for example, by referring to the method described in the literature "Experimental Methods of Polymer Synthesis" (written by Takayuki Otsu, published by Kagaku Dojin Co., Ltd., 1st edition, 1st printing, published on March 1, 1972) and the cited references described in said literature.

[0127] Specifically, a method is exemplified in which a predetermined amount of (a) and (b), a polymerization initiator, a solvent, etc. are put into a reaction vessel, and the atmosphere is deoxygenated by, for example, replacing oxygen with nitrogen, and the mixture is heated and kept warm while stirring. The polymerization initiator and solvent used here are not particularly limited, and those commonly used in the field can be used. For example, the polymerization initiator includes an azo compound (2,2'-azobisisobutyronitrile, 2,2'-azobis(2,4-dimethylvaleronitrile), etc.) and an organic peroxide (benzoyl peroxide, etc.), and the solvent may be any one that dissolves each monomer, and examples of the solvent (E) of the colored resin composition of the present invention include the solvent described below.

[0128] The obtained copolymer may be used as it is after the reaction, or may be used after concentration or dilution, or may be used after extraction as a solid (powder) by a method such as reprecipitation. In particular, by using the solvent contained in the colored resin composition of the present invention as a solvent during this polymerization, the solution after the reaction can be used as it is for the preparation of the colored resin composition of the present invention, and therefore the manufacturing process of the colored resin composition of the present invention can be simplified.

[0129] In the resin [K2], the ratio of structural units derived from each of them is as follows among all structural units constituting the resin [K2]: Structural units derived from (a): 2 to 45 mol% Structural units derived from (b): 2 to 95 mol% Structural units derived from (c): 1 to 65 mol% It is preferred that Structural units derived from (a): 5 to 40 mol% Structural units derived from (b): 5 to 80 mol% Structural units derived from (c): 5 to 60 mol% It is more preferable that: When the ratio of the structural units of the resin [K2] is within the above range, the colored resin composition has excellent storage stability, developability when forming a colored pattern, and the obtained color filter has excellent solvent resistance, heat resistance, and mechanical strength.

[0130] Resin [K2] can be produced, for example, in the same manner as described above as the method for producing resin [K1].

[0131] In the resin [K3], the ratio of structural units derived from each of them is as follows among all structural units constituting the resin [K3]: Structural units derived from (a): 2 to 60 mol% Structural units derived from (c): 40 to 98 mol% It is preferred that Structural units derived from (a): 10 to 50 mol% Structural units derived from (c): 50 to 90 mol% It is more preferable that: Resin [K3] can be produced, for example, in the same manner as described above as the method for producing resin [K1].

[0132] Resin [K4] can be produced by obtaining a copolymer of (a) and (c), and then adding the cyclic ether having 2 to 4 carbon atoms contained in (b) to the carboxylic acid and / or carboxylic acid anhydride contained in (a). First, a copolymer of (a) and (c) is produced in the same manner as described for the production method of resin [K1]. In this case, the ratio of the structural units derived from each is preferably the same as that described for resin [K3].

[0133] Next, a part of the carboxylic acid and / or carboxylic acid anhydride derived from (a) in the copolymer is reacted with a cyclic ether having 2 to 4 carbon atoms contained in (b). Following the production of the copolymer of (a) and (c), the atmosphere in the flask is replaced with air from nitrogen, and (b), a reaction catalyst for the reaction of a carboxylic acid or a carboxylic acid anhydride with a cyclic ether (e.g., tris(dimethylaminomethyl)phenol, etc.), a polymerization inhibitor (e.g., hydroquinone, etc.), etc. are placed in the flask, and the mixture is reacted, for example, at 60 to 130°C for 1 to 10 hours to produce the resin [K4]. The amount of (b) used is preferably 5 to 80 moles, more preferably 10 to 75 moles, relative to 100 moles of (a). By adjusting the amount within this range, the storage stability of the colored resin composition, the developability when forming a pattern, and the balance of the solvent resistance, heat resistance, mechanical strength, and sensitivity of the resulting pattern tend to be good. Since the reactivity of the cyclic ether is high and unreacted (b) is unlikely to remain, (b1) is preferable as (b) used in 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 per 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 per 100 parts by mass of the total amount of (a), (b) and (c). The reaction conditions such as the charging method, reaction temperature and time can be appropriately adjusted in consideration of the production equipment, the amount of heat generated by the polymerization, etc. As with the polymerization conditions, the charging method and reaction temperature can be appropriately adjusted in consideration of the production equipment, the amount of heat generated by the polymerization, etc.

[0134] Resin [K5] is produced in the first step by the same method as the above-mentioned resin [K1] to obtain a copolymer of (b) and (c). As in the above, the obtained copolymer may be used as it is in the form of a solution after the reaction, or may be a concentrated or diluted solution, or may be extracted as a solid (powder) by a method such as reprecipitation. The ratios of the structural units derived from (b) and (c) to the total number of moles of all structural units constituting the copolymer are, respectively, Structural units derived from (b): 5 to 95 mol% Structural units derived from (c): 5 to 95 mol% It is preferred that Structural units derived from (b): 10 to 90 mol% Structural units derived from (c): 10 to 90 mol% It is more preferable that:

[0135] Furthermore, under the same conditions as in the manufacturing method of resin [K4], resin [K5] can be obtained by reacting the cyclic ether derived from (b) contained in the copolymer of (b) and (c) with the carboxylic acid or carboxylic anhydride contained in (a). The amount of (a) reacted with the copolymer is preferably 5 to 80 moles per 100 moles of (b). Because the reactivity of cyclic ethers is high and unreacted (b) is unlikely to remain, (b1) is preferred as (b) for use in resin [K5], and (b1-1) is more preferred.

[0136] Resin [K6] is a resin obtained by further reacting resin [K5] with a carboxylic acid anhydride. The hydroxyl group generated by the reaction of a cyclic ether with a carboxylic acid or a carboxylic acid anhydride is reacted with the carboxylic acid anhydride. Examples of the carboxylic acid anhydride include maleic anhydride, citraconic anhydride, itaconic 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, etc. The amount of the carboxylic acid anhydride used is preferably 0.5 to 1 mole per mole of the amount of (a) used.

[0137] Specific examples of the resin (B) include 3,4-epoxycyclohexylmethyl(meth)acrylate / (meth)acrylic acid copolymer, 3,4-epoxytricyclo[5.2.1.0 2,6]decyl acrylate / (meth)acrylic acid copolymer and other resins [K1]; glycidyl (meth)acrylate / benzyl (meth)acrylate / (meth)acrylic acid copolymer, glycidyl (meth)acrylate / styrene / (meth)acrylic acid copolymer, 3,4-epoxytricyclo[5.2.1.0 2,6 ]decyl acrylate / (meth)acrylic acid / N-cyclohexylmaleimide copolymer, 3,4-epoxytricyclo[5.2.1.0 2,6 ]decyl acrylate / (meth)acrylic acid / N-cyclohexylmaleimide / 2-hydroxyethyl (meth)acrylate copolymer, 3-methyl-3-(meth)acryloyloxymethyloxetane / (meth)acrylic acid / styrene copolymer, etc. [K2]; benzyl (meth)acrylate / (meth)acrylic acid copolymer, styrene / (meth)acrylic acid copolymer, etc. [K3]; benzyl (meth)acrylate / (meth)acrylic acid copolymer to which glycidyl (meth)acrylate has been added, tricyclodecyl (meth)acrylate / styrene / (meth)acrylic acid copolymer to which glycidyl (meth)acrylate has been added, tricyclodecyl Resins such as [K4] in which glycidyl (meth)acrylate is added to a (meth)acrylate / benzyl (meth)acrylate / (meth)acrylic acid copolymer; resins such as [K5] in which a tricyclodecyl (meth)acrylate / glycidyl (meth)acrylate copolymer is reacted with (meth)acrylic acid, and resins such as [K6] in which a tricyclodecyl (meth)acrylate / glycidyl (meth)acrylate copolymer is reacted with (meth)acrylic acid and further reacted with tetrahydrophthalic anhydride; and the like.

[0138] Resin (B) is more preferably resin [K1] or resin [K2], and particularly preferably resin [K1].

[0139] The polystyrene-equivalent weight average molecular weight (Mw) of the resin (B) is preferably from 1,000 to 100,000, more preferably from 2,000 to 50,000, and even more preferably from 3,000 to 30,000. When the weight average molecular weight is within the above range, the solubility of the unexposed area in a developer is high, and the residual film rate and hardness of the obtained pattern also tend to be high. The dispersity of the resin (B) [weight average molecular weight (Mw) / number average molecular weight (Mn)] is preferably 1 or more and 6 or less, more preferably 1.001 or more and 4 or less, and further preferably 1.01 or more and 4 or less.

[0140] The acid value (solid content equivalent value) of the resin (B) is preferably 10 mg-KOH / g or more and 300 mg-KOH / g or less, more preferably 20 mg-KOH / g or more and 250 mg-KOH / g or less, even more preferably 25 mg-KOH / g or more and 200 mg-KOH / g or less, even more preferably 30 mg-KOH / g or more and 150 mg-KOH / g or less, and particularly preferably 60 mg-KOH / g or more and 135 mg-KOH / g or less. Here, the acid value is a value measured as the amount (mg) of potassium hydroxide required to neutralize 1 g of the resin, and can be determined, for example, by titration using an aqueous potassium hydroxide solution.

[0141] The content of the resin (B) is preferably 5 to 50 mass%, more preferably 10 to 40 mass%, and further preferably 15 to 30 mass%, based on 100 mass% of the solid content of the colored resin composition. When the content of the resin (B) is within the above range, the solubility of the unexposed area in the developer tends to be high.

[0142] <Polymerizable compound (C)> The polymerizable compound (C) is a compound that can be polymerized by active radicals and / or acids generated from the polymerization initiator (D), and examples thereof include compounds having a polymerizable ethylenically unsaturated bond, and are preferably (meth)acrylic acid ester compounds.

[0143] Examples of the polymerizable compound having one ethylenically unsaturated bond include nonylphenylcarbitol acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-ethylhexylcarbitol acrylate, 2-hydroxyethyl acrylate, N-vinylpyrrolidone, and the like, as well as the above-mentioned monomers (a), (b) and (c).

[0144] Examples of the polymerizable compound having two ethylenically unsaturated bonds include 1,6-hexanediol di(meth)acrylate, ethylene glycol di(meth)acrylate, neopentyl glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, bis(acryloyloxyethyl)ether of bisphenol A, and 3-methylpentanediol di(meth)acrylate.

[0145] The polymerizable compound (C) is preferably a polymerizable compound having three or more ethylenically unsaturated bonds. Examples of such polymerizable compounds include trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, tripentaerythritol octa(meth)acrylate, tripentaerythritol hepta(meth)acrylate, tetrapentaerythritol deca(meth)acrylate, tetrapentaerythritol nona(meth)acrylate, tris(2-(meth)acryloyloxyethyl)isocyanurate, ethylenediaminetetraacet ... Examples of the polyvinyl chloride-modified acrylate include ethylene glycol-modified pentaerythritol tetra(meth)acrylate, ethylene glycol-modified dipentaerythritol hexa(meth)acrylate, propylene glycol-modified pentaerythritol tetra(meth)acrylate, propylene glycol-modified dipentaerythritol hexa(meth)acrylate, caprolactone-modified pentaerythritol tetra(meth)acrylate, and caprolactone-modified dipentaerythritol hexa(meth)acrylate, and preferably dipentaerythritol penta(meth)acrylate and dipentaerythritol hexa(meth)acrylate.

[0146] The weight average molecular weight of the polymerizable compound (C) is preferably 50 or more and 4,000 or less, more preferably 70 or more and 3,500 or less, even more preferably 100 or more and 3,000 or less, still more preferably 150 or more and 2,900 or less, and particularly preferably 250 or more and 1,500 or less.

[0147] The content of the polymerizable compound (C) may be, for example, 1 mass% or more and 99 mass% or less, preferably 5 mass% or more and 90 mass% or less, more preferably 10 mass% or more and 80 mass% or less, and even more preferably 20 mass% or more and 70 mass% or less, based on the total amount of solids in the colored resin composition.

[0148] <Polymerization initiator (D)> The polymerization initiator (D) is not particularly limited as long as it is a compound that can generate active radicals, acids, etc. by the action of light or heat and initiate polymerization, and any known polymerization initiator can be used.

[0149] Examples of the polymerization initiator (D) include O-acyloxime compounds, alkylphenone compounds, biimidazole compounds, triazine compounds, and acylphosphine oxide compounds.

[0150] Examples of the O-acyloxime compound include N-benzoyloxy-1-(4-phenylsulfanylphenyl)butan-1-one-2-imine, N-benzoyloxy-1-(4-phenylsulfanylphenyl)octan-1-one-2-imine, N-benzoyloxy-1-(4-phenylsulfanylphenyl)-3-cyclopentylpropan-1-one-2-imine, N-acetoxy-1-(4-phenylsulfanylphenyl)-3-cyclopentylpropan-1-one-2-imine, N-acetoxy-1-(4-phenylsulfanylphenyl)-3-cyclohexylpropan-1-one-2-imine, and N-acetoxy-1-[ 9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]ethan-1-imine, N-acetoxy-1-[9-ethyl-6-{2-methyl-4-(3,3-dimethyl-2,4-dioxacyclopentanylmethyloxy)benzoyl}-9H-carbazol-3-yl]ethan-1-imine, N-acetoxy-1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]-3-cyclopentylpropan-1-imine, and N-benzoyloxy-1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]-3-cyclopentylpropan-1-one-2-imine. In addition, as the O-acyloxime compound, commercially available products such as Irgacure (registered trademark) OXE01, OXE02 (both manufactured by BASF) and N-1919 (manufactured by ADEKA Co., Ltd.) may be used. Among them, as the O-acyloxime compound, at least one selected from the group consisting of N-benzoyloxy-1-(4-phenylsulfanylphenyl)butan-1-one-2-imine, N-benzoyloxy-1-(4-phenylsulfanylphenyl)octan-1-one-2-imine and N-benzoyloxy-1-(4-phenylsulfanylphenyl)-3-cyclopentylpropan-1-one-2-imine is preferred, and N-benzoyloxy-1-(4-phenylsulfanylphenyl)octan-1-one-2-imine is more preferred.

[0151] Examples of the alkylphenone compound include 2-methyl-2-morpholino-1-(4-methylsulfanylphenyl)propan-1-one, 2-dimethylamino-1-(4-morpholinophenyl)-2-benzylbutan-1-one, and 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(4-morpholinyl)phenyl]butan-1-one. Commercially available alkylphenone compounds such as Irgacure (registered trademark) 369, 907, and 379 (all manufactured by BASF) may also be used. Alkylphenone compounds also include 2-hydroxy-2-methyl-1-phenylpropan-1-one, 2-hydroxy-2-methyl-1-[4-(2-hydroxyethoxy)phenyl]propan-1-one, 1-hydroxycyclohexyl phenyl ketone, oligomers of 2-hydroxy-2-methyl-1-(4-isopropenylphenyl)propan-1-one, α,α-diethoxyacetophenone, and benzyl dimethyl ketal.

[0152] Examples of the biimidazole compound include 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetraphenylbiimidazole, 2,2'-bis(2,3-dichlorophenyl)-4,4',5,5'-tetraphenylbiimidazole (see, for example, JP-A-6-75372 and JP-A-6-75373), 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetra(alkoxyphenyl)biimidazole, and 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetra(alkoxyphenyl)biimidazole. 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetra(dialkoxyphenyl)biimidazole, 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetra(trialkoxyphenyl)biimidazole (see, for example, JP-B-48-38403 and JP-A-62-174204), and biimidazole compounds in which the phenyl groups at the 4,4',5,5'-positions are substituted by carboalkoxy groups (see, for example, JP-A-7-10913).

[0153] The triazine compounds include 2,4-bis(trichloromethyl)-6-(4-methoxyphenyl)-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-(4-methoxynaphthyl)-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-piperonyl-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-(4-methoxystyryl)-1,3,5-triazine, and 2,4-bis(trichloromethyl)-6-[2-( 5-methylfuran-2-yl)ethenyl]-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-[2-(furan-2-yl)ethenyl]-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-[2-(4-diethylamino-2-methylphenyl)ethenyl]-1,3,5-triazine and 2,4-bis(trichloromethyl)-6-[2-(3,4-dimethoxyphenyl)ethenyl]-1,3,5-triazine.

[0154] Examples of the acylphosphine oxide compound include 2,4,6-trimethylbenzoyldiphenylphosphine oxide, etc. Commercially available products such as Irgacure (registered trademark) 819 (manufactured by BASF) may also be used.

[0155] Further examples of the polymerization initiator (D) include benzoin compounds such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzoin isobutyl ether; benzophenone compounds such as benzophenone, methyl o-benzoylbenzoate, 4-phenylbenzophenone, 4-benzoyl-4'-methyldiphenyl sulfide, 3,3',4,4'-tetra(tert-butylperoxycarbonyl)benzophenone, and 2,4,6-trimethylbenzophenone; quinone compounds such as 9,10-phenanthrenequinone, 2-ethylanthraquinone, and camphorquinone; 10-butyl-2-chloroacridone, benzyl, methyl phenylglyoxylate, and titanocene compounds. These are preferably used in combination with a polymerization initiator aid (D1) (particularly an amine compound) described below.

[0156] The polymerization initiator (D) is preferably a polymerization initiator containing at least one selected from the group consisting of an alkylphenone compound, a triazine compound, an acylphosphine oxide compound, an O-acyloxime compound, and a biimidazole compound, and more preferably a polymerization initiator containing an O-acyloxime compound.

[0157] The content of the polymerization initiator (D) is preferably 0.1 parts by mass or more and 30 parts by mass or less, more preferably 1 part by mass or more and 20 parts by mass or less, based on 100 parts by mass of the total amount of the resin (B) and the polymerizable compound (C) contained in the colored resin composition. When the content of the polymerization initiator (D) is within the above range, the sensitivity is increased and the exposure time tends to be shortened, thereby improving the productivity of the color filter.

[0158] <Polymerization initiator aid (D1)> The polymerization initiation aid (D1) is a compound used to promote the polymerization of the polymerizable compound (C) whose polymerization has been initiated by the polymerization initiator (D), or a sensitizer. When the polymerization initiation aid (D1) is contained, it is usually used in combination with the polymerization initiator (D).

[0159] Examples of the polymerization initiator aid (D1) include amine compounds, alkoxyanthracene compounds, thioxanthone compounds, and carboxylic acid compounds.

[0160] Examples of the amine compound include triethanolamine, methyldiethanolamine, triisopropanolamine, methyl 4-dimethylaminobenzoate, ethyl 4-dimethylaminobenzoate, isoamyl 4-dimethylaminobenzoate, 2-dimethylaminoethyl benzoate, 2-ethylhexyl 4-dimethylaminobenzoate, N,N-dimethyl-p-toluidine, 4,4'-bis(dimethylamino)benzophenone (commonly known as Michler's ketone), 4,4'-bis(diethylamino)benzophenone, and 4,4'-bis(ethylmethylamino)benzophenone, and preferably 4,4'-bis(diethylamino)benzophenone. In addition, commercially available products such as EAB-F (manufactured by Hodogaya Chemical Co., Ltd.) may be used as the amine compound.

[0161] Examples of the alkoxyanthracene compound include 9,10-dimethoxyanthracene, 2-ethyl-9,10-dimethoxyanthracene, 9,10-diethoxyanthracene, 2-ethyl-9,10-diethoxyanthracene, 9,10-dibutoxyanthracene, and 2-ethyl-9,10-dibutoxyanthracene.

[0162] Examples of the thioxanthone compound include 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone, and 1-chloro-4-propoxythioxanthone.

[0163] Examples of the carboxylic acid compound include phenylsulfanylacetic acid, methylphenylsulfanylacetic acid, ethylphenylsulfanylacetic acid, methylethylphenylsulfanylacetic acid, dimethylphenylsulfanylacetic acid, methoxyphenylsulfanylacetic acid, dimethoxyphenylsulfanylacetic acid, chlorophenylsulfanylacetic acid, dichlorophenylsulfanylacetic acid, N-phenylglycine, phenoxyacetic acid, naphthylthioacetic acid, N-naphthylglycine, and naphthoxyacetic acid.

[0164] When these polymerization initiation aids (D1) are used, the content thereof is preferably 0.1 parts by mass or more and 30 parts by mass or less, more preferably 1 part by mass or more and 20 parts by mass or less, relative to 100 parts by mass of the total amount of the resin (B) and the polymerizable compound (C) contained in the colored resin composition.

[0165] <Solvent (E)> The solvent (E) is not particularly limited, and any solvent commonly used in the art can be used. Examples of the solvent (E) include ester solvents (solvents containing -COO- in the molecule and not containing -O-), ether solvents (solvents containing -O- in the molecule and not containing -COO-), ether ester solvents (solvents containing -COO- and -O- in the molecule), ketone solvents (solvents containing -CO- in the molecule and not containing -COO-), alcohol solvents (solvents containing OH in the molecule and not containing -O-, -CO- and -COO-), aromatic hydrocarbon solvents, amide solvents, dimethyl sulfoxide, etc. Two or more of these solvents may be used in combination.

[0166] Examples of ester solvents include methyl lactate, ethyl lactate, butyl lactate, methyl 2-hydroxyisobutanoate, 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, and γ-butyrolactone.

[0167] Examples of the ether solvent include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, 3-methoxy-1-butanol, 3-methoxy-3-methylbutanol, tetrahydrofuran, tetrahydropyran, 1,4-dioxane, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol methyl ethyl ether, diethylene glycol dipropyl ether, diethylene glycol dibutyl ether, anisole, phenetole, and methylanisole.

[0168] Examples of ether ester solvents include methyl methoxyacetate, ethyl methoxyacetate, butyl methoxyacetate, methyl ethoxyacetate, ethyl ethoxyacetate, methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, methyl 2-methoxypropionate, ethyl 2-methoxypropionate, propyl 2-methoxypropionate, methyl 2-ethoxypropionate, ethyl 2-ethoxypropionate, methyl 2-methoxy-2-methyl ...2-ethoxy-2-methylpropionate, and methyl 2-ethoxy-2-methylpropionate. Examples of the monomer units include ethyl acetate, 3-methoxybutyl acetate, 3-methyl-3-methoxybutyl acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, and dipropylene glycol methyl ether acetate.

[0169] Examples of 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.

[0170] Examples of the alcohol solvent include methanol, ethanol, propanol, butanol, hexanol, cyclohexanol, ethylene glycol, propylene glycol, and glycerin.

[0171] Examples of aromatic hydrocarbon solvents include benzene, toluene, xylene, and mesitylene.

[0172] Examples of the amide solvent include N,N-dimethylformamide, N,N-dimethylacetamide, and N-methylpyrrolidone.

[0173] The solvent (E) is preferably a solvent containing at least one selected from propylene glycol monomethyl ether acetate, propylene glycol monomethyl ether, ethyl lactate, and cyclohexanone.

[0174] The content of the solvent (E) is usually 99.99% by mass or less, preferably 40% by mass or more and 99% by mass or less, more preferably 50% by mass or more and 95% by mass or less, even more preferably 70% by mass or more and 95% by mass or less, and even more preferably 75% by mass or more and 90% by mass or less, based on the total amount of the colored resin composition. In other words, the total amount of solids in the colored resin composition is usually 0.01% by mass or more, preferably 1% by mass or more and 60% by mass or less, more preferably 5% by mass or more and 50% by mass or less, even more preferably 5% by mass or more and 30% by mass or less, and even more preferably 10% by mass or more and 25% by mass or less. When the content of the solvent (E) is within the above range, the flatness during application is good, and the color density is not insufficient when a color filter is formed, so that the display characteristics tend to be good.

[0175] <Leveling agent (F)> Examples of the leveling agent (F) include silicone surfactants, fluorine surfactants, and silicone surfactants having fluorine atoms, which may have a polymerizable group in the side chain.

[0176] Examples of silicone surfactants include surfactants having a siloxane bond in the molecule.Specific examples include Toray Silicone DC3PA, SH7PA, DC11PA, SH21PA, SH28PA, SH29PA, SH30PA, and SH8400 (trade name: manufactured by Toray Dow Corning Co., Ltd.), KP321, KP322, KP323, KP324, KP326, KP340, and KP341 (manufactured by Shin-Etsu Chemical Co., Ltd.), TSF400, TSF401, TSF410, TSF4300, TSF4440, TSF4445, TSF4446, TSF4452, and TSF4460 (manufactured by Momentive Performance Materials Japan LLC).

[0177] Examples of fluorine-based surfactants include surfactants having a fluorocarbon chain in the molecule.Specific examples include Fluorad (registered trademark) FC430, FC431 (manufactured by Sumitomo 3M Limited), Megafac (registered trademark) F142D, F171, F172, F173, F177, F183, F554, R30, RS-718-K (manufactured by DIC Corporation), F-top (registered trademark) EF301, EF303, EF351, EF352 (manufactured by Mitsubishi Materials Electronic Chemicals Co., Ltd.), Surflon (registered trademark) S381, S382, SC101, SC105 (manufactured by AGC Corporation) and E5844 (manufactured by Daikin Fine Chemical Research Institute Co., Ltd.).

[0178] Examples of silicone surfactants having fluorine atoms include surfactants having a siloxane bond and a fluorocarbon chain in the molecule, such as Megafac (registered trademark) R08, BL20, F475, F477, and F443 (manufactured by DIC Corporation).

[0179] When the leveling agent (F) is contained, the content of the leveling agent (F) is preferably 0.0005% by mass or more and 1% by mass or less, more preferably 0.001% by mass or more and 0.5% by mass or less, and even more preferably 0.005% by mass or more and 0.1% by mass or less, based on the total amount of the colored resin composition. This content does not include the content of the dispersant. When the content of the leveling agent (F) is within the above range, the flatness of the color filter can be improved.

[0180] <Other ingredients> The colored resin composition may contain additives known in the art, such as fillers, other polymer compounds, adhesion promoters, quenchers, antioxidants, light stabilizers, and chain transfer agents, as necessary.

[0181] <Method of producing colored resin composition> The colored resin composition can be prepared by mixing the colorant (A), the resin (B), and the polymerizable compound (C), polymerization initiator (D), polymerization initiator aid (D1), solvent (E), leveling agent (F), and other components that are used as needed. The mixing can be performed using known or conventional equipment and conditions. The colorant (A) may be mixed in advance with a part or all of the solvent (E) and dispersed using a bead mill or the like until the average particle size is about 0.2 μm or less, and is preferably used in a dispersed state. In this case, the dispersant and a part or all of the resin (B) may be mixed as necessary. The colorant (A) may also be used in a state in which it is dissolved in a part or all of the solvent (E) in advance. The remaining components are mixed into the colorant-containing liquid obtained in this way to a predetermined concentration, thereby preparing the desired colored resin composition.

[0182] <Manufacturing method for color filters> A color filter, which may be a color conversion layer, can be formed from the colored resin composition of the present invention. Examples of methods for forming a colored pattern include photolithography, inkjet, and printing. Among them, photolithography is preferred. The photolithography is a method in which the colored resin composition is applied to a substrate, dried to form a colored resin composition layer, and exposed to light through a photomask and developed. In the photolithography, a colored coating film, which is a cured product of the colored resin composition layer, can be formed by not using a photomask during exposure and / or not developing. The colored pattern or colored coating film thus formed is the color filter of the present invention.

[0183] The film thickness of the color filter to be produced is not particularly limited and can be appropriately adjusted depending on the purpose or use, and is, for example, 0.1 μm to 30 μm, preferably 0.1 μm to 20 μm, and more preferably 0.5 μm to 6 μm.

[0184] The substrate may be a glass plate such as quartz glass, borosilicate glass, alumina silicate glass, or soda lime glass with a silica-coated surface, a resin plate such as polycarbonate, polymethylmethacrylate, or polyethylene terephthalate, silicon, or a substrate having a thin film of aluminum, silver, or a silver / copper / palladium alloy formed thereon. On these substrates, other color filter layers, resin layers, transistors, circuits, etc. may be formed.

[0185] The formation of each color pixel by photolithography can be carried out using known or conventional devices and conditions. For example, the pixel can be produced as follows. First, the colored resin composition is applied onto a substrate, and then dried by heating and drying (pre-baking) and / or drying under reduced pressure to remove volatile components such as solvents, thereby obtaining a smooth colored resin composition layer. Examples of the coating method include spin coating, slit coating, and slit and spin coating. The temperature when drying by heating is preferably from 30° C. to 120° C., and more preferably from 50° C. to 110° C. The heating time is preferably from 10 seconds to 60 minutes, and more preferably from 30 seconds to 30 minutes. When drying under reduced pressure is performed, it is preferable to perform the drying under a pressure of 50 Pa or more and 150 Pa or less at a temperature range of 20° C. or more and 25° C. or less. The thickness of the colored resin composition layer is not particularly limited, and may be appropriately selected depending on the intended thickness of the color filter.

[0186] Next, the colored resin composition layer is exposed through a photomask for forming a desired colored pattern. The pattern on the photomask is not particularly limited, and a pattern according to the intended use is used. In addition, it is preferable to use an exposure device such as a mask aligner or a stepper, since it is possible to uniformly irradiate the entire exposed surface with parallel light and to accurately align the photomask with the substrate on which the colored resin composition layer is formed. When forming a colored coating film, exposure may be performed without using a photomask.

[0187] The light source used for exposure is preferably a light source that generates light with a wavelength of 250 nm or more and 450 nm or less. For example, light less than 350 nm may be cut using a filter that cuts this wavelength range, or light around 436 nm, around 408 nm, and around 365 nm may be selectively extracted using a bandpass filter that extracts these wavelength ranges. Specific examples include mercury lamps, light-emitting diodes, metal halide lamps, and halogen lamps.

[0188] The colored resin composition layer after exposure is brought into contact with a developer and developed to form a colored pattern on the substrate. The unexposed portion of the colored resin composition layer is dissolved in the developer and removed by development. The developer is preferably an aqueous solution of an alkaline compound such as potassium hydroxide, sodium bicarbonate, sodium carbonate, or tetramethylammonium hydroxide. The concentration of these alkaline compounds in the aqueous solution is preferably 0.01% by mass or more and 10% by mass or less, more preferably 0.03% by mass or more and 5% by mass or less. Furthermore, the developer may contain a surfactant. The developing method may be any of a puddle method, a dipping method, a spray method, etc. Furthermore, the substrate may be inclined at an arbitrary angle during the developing. After development, the substrate is preferably washed with water.

[0189] Furthermore, it is preferable to perform post-baking on the obtained colored pattern or colored coating film. The post-baking temperature is preferably from 150° C. to 250° C., more preferably from 160° C. to 240° C. The post-baking time is preferably from 1 minute to 120 minutes, more preferably from 10 minutes to 60 minutes.

[0190] <Display device> The color filter is useful as a color filter for use in display devices (for example, liquid crystal display devices, organic EL devices, electronic paper, etc.) and solid-state imaging devices, particularly as a color filter for use in organic EL devices. EXAMPLES

[0191] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to the following examples, and can be modified as long as it satisfies the spirit of the invention, and all such modifications are included in the technical scope of the present invention. In the following, unless otherwise specified, "parts" means "parts by mass" and "%" means "% by mass".

[0192] In the following examples, the structures of the compounds were confirmed by mass spectrometry (LC; Agilent 1200 model, MASS; Agilent LC / MSD6130 model).

[0193] The polystyrene-equivalent weight average molecular weight (Mw) and number average molecular weight (Mn) of the resin were measured by GPC under the following conditions. Equipment: HLC-8120GPC (Tosoh Corporation) Column: TSK-GELG2000HXL Column temperature: 40℃ Solvent: Tetrahydrofuran Flow rate: 1.0mL / min Solid concentration of the analytical sample: 0.001 to 0.01% by mass Injection volume: 50μL Detector: RI Calibration standard materials: TSK STANDARD POLYSTYRENE F-40, F-4, F-288, A-2500, A-500 (manufactured by Tosoh Corporation) The ratio of the weight average molecular weight and the number average molecular weight (Mw / Mn) calculated in terms of polystyrene obtained above was taken as the dispersity.

[0194] [Synthesis Example 1] <Preparation of Compound I-18-1> N 1 ,N 2 20 parts of 2,6-bis(2,6-diisopropylphenyl)perylene-3,4,9,10-tetracarboxylic diimide (manufactured by Tokyo Chemical Industry Co., Ltd.), 788 parts of maleic anhydride (manufactured by Tokyo Chemical Industry Co., Ltd.), and 12 parts of p-chloranil (manufactured by Tokyo Chemical Industry Co., Ltd.) were mixed and stirred at 170°C for 25 hours. While keeping the obtained mixture at 70°C or less, 800 parts of 1 mol / L hydrochloric acid (manufactured by Kanto Chemical Co., Ltd.) and 300 parts of acetone (manufactured by Kanto Chemical Co., Ltd.) prepared in advance were added, and a yellow precipitate was generated. The mixture containing this yellow precipitate was filtered, and the residue after filtration was washed with 400 parts of water and 200 parts of methanol. The obtained residue was dried under reduced pressure at 60°C to obtain N-type 1-methyl-2-phenyl-2-propanediol represented by the formula (I-18-1). 1 ,N 2-Bis(2,6-diisopropylphenyl)benzo[ghi]perylene-2,3,8,9,11,12-hexanecarboxylic acid-2,3,8,9-bisimide-11,12-acid anhydride (hereinafter sometimes referred to as compound (I-18-1)) was obtained in an amount of 15 parts (yield 75%). [ka]

[0195] <Identification of compound I-18-1> (Mass spectrometry) Ionization mode = ESI+: m / z = [M+H] + 821 Exact Mass: 820

[0196] [Synthesis Example 2] <Preparation of compound (I-18-2)> 4.0 parts of the compound (I-18-1) obtained in Synthesis Example 1, 2.0 parts of 2,3,5,6-tetramethyl-1,4-phenylenediamine (manufactured by Tokyo Chemical Industry Co., Ltd.), and 240 parts of propionic acid (manufactured by Tokyo Chemical Industry Co., Ltd.) were mixed and stirred at 140°C for 6 hours. The resulting mixture was concentrated, and 5 parts of methanol were added, resulting in the formation of a yellow precipitate. The mixture containing this yellow precipitate was filtered, and the residue after filtration was washed with 2 parts of methanol. The resulting residue was dried under reduced pressure at 60°C and purified with a silica gel column (solvent: chloroform), resulting in the formation of N-(2-methyl-1,2-diphenyl-2-propanediol) represented by the formula (I-18-2). 1 ,N 2 -Bis(2,6-diisopropylphenyl)-N 3 3.7 parts of -(4-amino-2,3,5,6-tetramethylphenyl)-benzo[ghi]perylene-2,3,8,9,11,12-hexanecarboxylic acid triimide (hereinafter sometimes referred to as compound (I-18-2)) were obtained (yield 77%). [ka]

[0197] <Identification of compound I-18-2> (Mass spectrometry) Ionization mode = ESI+: m / z = [M+H]+ 951 Exact Mass: 950

[0198] [Synthesis Example 3] <Preparation of compound (I-18)> 2.0 parts of the compound (I-18-1) obtained in Synthesis Example 1, 2.4 parts of the compound (I-18-2) obtained in Synthesis Example 2, and 120 parts of heptanoic acid (manufactured by Tokyo Chemical Industry Co., Ltd.) were added and stirred at 220° C. for 14 hours. The resulting mixture was concentrated, and 5 parts of methanol were added, resulting in the formation of a yellow precipitate. The mixture containing this yellow precipitate was filtered, and the residue after filtration was washed with 2 parts of methanol. The resulting residue was dried under reduced pressure at 60° C. and purified with a silica gel column (solvent: chloroform), resulting in the formation of a compound represented by formula (I-18): Compound (hereinafter, sometimes referred to as compound (I-18)) was obtained in an amount of 0.95 parts (yield 22%).

[0199] <Identification of compound I-18> (Mass spectrometry) Ionization mode = ESI+: m / z = [M+H] + 1738 Exact Mass: 1737

[0200] Lumogen (registered trademark) F Yellow 083 represented by the following formula (x) was synthesized according to the description in JP-A-60-203650. [ka]

[0201] [Synthesis Example 4] A suitable amount of nitrogen was flowed into a flask equipped with a reflux condenser, a dropping funnel and a stirrer to replace the atmosphere with nitrogen, 280 parts of propylene glycol monomethyl ether acetate was added, and the mixture was heated to 80°C with stirring. Next, 38 parts of acrylic acid, 3,4-epoxytricyclo[5.2.1.0 2,6 ]decan-8-yl acrylate and 3,4-epoxytricyclo[5.2.1.0 2,6A mixed solution of 289 parts of a mixture of decan-9-yl acrylate (content ratio 1:1 by molar ratio) and 125 parts of propylene glycol monomethyl ether acetate was added dropwise over 5 hours. Meanwhile, a solution of 33 parts of 2,2-azobis(2,4-dimethylvaleronitrile) dissolved in 235 parts of propylene glycol monomethyl ether acetate was added dropwise over 6 hours. After completion of the dropwise addition, the mixture was kept at 80°C for 4 hours and then cooled to room temperature to obtain a copolymer (resin B1) solution with a solid content of 35.1% and a viscosity of 125 mPa s measured with a Brookfield viscometer (23°C). The weight average molecular weight Mw of the resulting copolymer was 9.2×10 3 The resin B1 had a polydispersity of 2.08 and an acid value calculated as a solid content of 77 mg-KOH / g.

[0202] [ka]

[0203] <Example 1> (1) Preparation of Colored Resin Composition The components were mixed in the following ratio to obtain a colored resin composition 1'. (A) Colorant: 2.6 parts of a compound represented by formula (I-18) (B) Resin: 54 parts of resin B1 solution (E) Solvent: 420 parts of propylene glycol monomethyl ether acetate

[0204] (2) Preparation of Colored Resin Composition Next, the components were mixed in the following proportions to obtain a colored resin composition 1. Colored resin composition 1' 478 parts (C) Polymerizable compound: dipentaerythritol hexaacrylate (Kayarad (registered trademark) DPHA; manufactured by Nippon Kayaku Co., Ltd.) 40 parts (D) Polymerization initiator: N-benzoyloxy-1-(4-phenylsulfanylphenyl)octan-1-one-2-imine (Irgacure (registered trademark) OXE 01; manufactured by BASF) 2 parts (F) Leveling agent: Polyether modified silicone oil (Toray Silicone SH8400: manufactured by Toray Dow Corning Co., Ltd.) 0.15 parts

[0205] (3) Preparation of colored coating film The colored resin composition 1 was applied by spin coating onto a 5 cm square glass substrate (Eagle XG; Corning Incorporated) so that the film thickness after post-baking would be 1.7 to 2 μm, and then pre-baked at 100° C. for 3 minutes to form a colored resin composition layer. After cooling, the colored resin composition layer formed on the substrate was exposed to light at 80 mJ / cm 2 in the air using an exposure machine (TME-150RSK; Topcon Corporation). 2 After the light irradiation, the coating was post-baked in an oven at 230° C. for 30 minutes to obtain a colored coating film.

[0206] (4) λ max Measurement The absorbance of the resulting colored coating film was measured using a colorimeter (OSP-SP-200; OLYMPUS). The wavelength at which the absorbance was highest between 380 and 780 nm was determined as the maximum absorption wavelength (λ max ) was calculated as

[0207] (5) Heat resistance test The obtained colored coating film was heated in an oven under an atmospheric atmosphere at 230°C for 120 minutes. The color difference ΔE was calculated from the xy chromaticity coordinates (x, y) and Y measured values ​​before and after the test according to the method described in JIS Z 8730:2009 (7. Calculation method of color difference). * ab was calculated. Color difference ΔE * The smaller the ab, the smaller the color change, and ΔE * If ab is 5 or less, the colored coating film can be said to have no practical problems as a color filter. In addition, if the heat resistance of the colored coating film is good, the heat resistance of the colored pattern made from the same colored resin composition can also be said to be good. The results are shown in Table 2.

[0208] <Comparative Example 1> A colored resin composition was obtained in the same manner as in Example 1, except that 2.6 parts of Lumogen (registered trademark) F Yellow 083 was used instead of 2.6 parts of the compound (I-18). The results are shown in Table 2.

[0209] [Table 2]

Claims

1. A colored resin composition comprising a colorant and an alkali-soluble resin, wherein the colorant contains a compound represented by formula (I). 【Chemistry 1】 [In formula (I), R 1 ~R 8 are each independently a hydrogen atom, -R a1 , -OR a1 , a halogen atom, a hydroxy group, a carboxy group, —CO—O—R a1 , -O-CO-R a1 , -CO-R a1 or a nitro group; R 7 and R 8 may be bonded to each other to form a ring. R a1 represents a hydrocarbon group having 1 to 20 carbon atoms which may have a substituent. L 1 represents an n-valent linking group. n represents 2.

2. The colored resin composition according to claim 1, further comprising a polymerizable compound and a polymerization initiator.

3. A color filter formed from the colored resin composition according to claim 1 or 2.

4. A display device comprising the color filter according to claim 3 .

5. A compound represented by formula (Ia). 【Chemistry 2】 [In formula (I-a), R 1 ~R 8 are each independently a hydrogen atom, -R a1 , -OR a1 , a halogen atom, a hydroxy group, a carboxy group, —CO—O—R a1 , -O-CO-R a1 , -CO-R a1 or a nitro group; R 7 and R 8 may be bonded to each other to form a ring. R a1 represents a hydrocarbon group having 1 to 20 carbon atoms which may have a substituent. N x represents a nitrogen atom. L 2 represents an n-valent linking group containing an aromatic ring, and the carbon atom constituting the aromatic ring is N x directly binds to n represents 2.

Images