Composition containing a colorant

Abstract

To suppress thickening of a colored curable composition containing a specific colorant.SOLUTION: Thickening of a colored curable composition can be suppressed by: previously producing a composition which contains a compound represented by the following formula (1a) or the like as a colorant (A) and a resin (B1) containing a constituent unit (b1-1) represented by the following formula (1b) as a resin (B) and in which the content of the colorant (A) is 35-70 wt.% based on the total solid content of the composition; and subsequently producing the colored curable composition using the composition (the symbols in the following formulae are as defined in the specification).SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a composition containing a colorant. The composition of the present invention is useful for producing a colored curable composition. [Background technology]

[0002] Colored curable compositions are used in the manufacture of color filters for use in displays such as liquid crystal displays, electroluminescent displays, and plasma displays, and various compositions have been developed. For example, Patent Document 1 describes a colored curable composition comprising a solvent, a reactive diluent, a photopolymerization initiator, a colorant, and a compound represented by the formula (1):

[0003] [ka]

[0004] [The definitions of the symbols in formula (1) are as described in Patent Document 1.] A resin composition for color filters containing a copolymer containing a structural unit represented by the following formula is described. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] WO 2018 / 110097 A1 Summary of the Invention [Problem to be solved by the invention]

[0006] The present inventors have found that a colored curable composition containing a colorant (A), a resin (B), a polymerizable compound (C), a polymerization initiator (D) and a solvent (E) has a problem that the viscosity of the composition increases during storage depending on the type of colorant (A) used. The present invention has been made in light of such circumstances, and an object of the present invention is to suppress the increase in viscosity of a colored curable composition containing a specific colorant. [Means for solving the problem]

[0007] The present invention capable of achieving the above object is as follows. [1] A composition comprising a colorant (A), a resin (B) and a solvent (E), The colorant (A) is represented by the formula (1a):

[0008] [ka]

[0009] [In formula (1a), R 41a and R 42a each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 41a and R 42a and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded, R 43a and R 44a each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 43a and R 44a and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded, R 47a ~R 54a are each independently a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, -SO3 - , -SO2-N - -SO2-R f or an alkyl group having 1 to 8 carbon atoms which may have a substituent, R f represents a fluoroalkyl group having 1 to 12 carbon atoms, Ring T 1arepresents an aromatic hydrocarbon ring having 6 to 14 carbon atoms which may have a substituent or an aromatic heterocycle having 5 to 10 members which may have a substituent, the substituent that the saturated hydrocarbon group having 1 to 20 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a hydroxy group, a formyl group, and an amino group; The substituents that the aromatic hydrocarbon group having 6 to 14 carbon atoms may have are a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R f and an alkyl group having 1 to 8 carbon atoms which may have a substituent, The substituent that the aralkyl group having 7 to 30 carbon atoms may have is a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R f and an alkyl group having 1 to 8 carbon atoms which may have a substituent, The substituents that the aromatic hydrocarbon ring having 6 to 14 carbon atoms may have are a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R f and an alkyl group having 1 to 8 carbon atoms which may have a substituent, The substituents that the 5- to 10-membered aromatic heterocycle may have include a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R f and an alkyl group having 1 to 8 carbon atoms which may have a substituent, the substituent that the alkyl group having 1 to 8 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, and an amino group; When the saturated hydrocarbon group having 1 to 20 carbon atoms is a saturated hydrocarbon group having 2 to 20 carbon atoms, -CH2- contained in the saturated hydrocarbon group may be replaced by -O- or -CO-, When the alkyl group having 1 to 8 carbon atoms is an alkyl group having 2 to 8 carbon atoms, -CH2- contained in the alkyl group may be replaced by -O- or -CO-, r represents an integer of 1 or more; M r+ is a hydrogen ion, a metal ion of r valence, or N + (R 55a )4, and four R 55a may be the same or different, R 55a represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms, or an aralkyl group having 7 to 10 carbon atoms, k is represented by the formula (1a-A):

[0010] [ka]

[0011] [In formula (1a-A), ring T 1a , R 41a ~R 44a and R 47a ~R 54a are the same as above.] The anion represented by -SO3 - and -SO2-N - -SO2-R f represents the total number of When r is an integer of 2 or more, the multiple anions represented by formula (1a-A) may be the same or different, and When k-1 is an integer equal to or greater than 2, multiple M r+ may be the same or different.] A compound represented by the formula: Formula (2a):

[0012] [ka]

[0013] [In formula (2a), R 41b and R 42b each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 41b and R 42b and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded, R 43b and R 44b each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 43b and R 44b and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded, R 47b ~R 54b each independently represents a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, or an alkyl group having 1 to 8 carbon atoms which may have a substituent, Ring T 1b represents an aromatic hydrocarbon ring having 6 to 14 carbon atoms which may have a substituent or an aromatic heterocycle having 5 to 10 members which may have a substituent, the substituent that the saturated hydrocarbon group having 1 to 20 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, and an amino group; the substituent which the aromatic hydrocarbon group having 6 to 14 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent; the substituent which the aralkyl group having 7 to 30 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxy group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent; the substituent which the aromatic hydrocarbon ring having 6 to 14 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxy group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent; the substituent which the 5-10-membered aromatic heterocycle may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent; the substituent that the alkyl group having 1 to 8 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, and an amino group; When the saturated hydrocarbon group having 1 to 20 carbon atoms is a saturated hydrocarbon group having 2 to 20 carbon atoms, -CH2- contained in the saturated hydrocarbon group may be replaced by -O- or -CO-, When the alkyl group having 1 to 8 carbon atoms is an alkyl group having 2 to 8 carbon atoms, -CH2- contained in the alkyl group may be replaced by -O- or -CO-, m represents an integer of 1 or more; [Y] m- represents an anion having a valence of m, and When m is an integer of 2 or more, formula (2a-C):

[0014] [ka]

[0015] [In formula (2a-C), ring T 1b , R 41b ~R 44b and R 47b ~R 54b are the same as above.] The multiple cations represented by the formula may be the same or different. and Formula (3a):

[0016] [ka]

[0017] [In formula (3a), R 1 and R 2 each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 10 carbon atoms which may have a substituent, or -R 12 -Si(R 13 )3 or R 1 and R 2 and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded, R 3 and R 4 each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 10 carbon atoms which may have a substituent, or -R 12 -Si(R 13 ) 3, or R 3 and R 4 and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded, R 5 -OH, -SO3 - , -SO3 - Z + , -SO3R 8 , -CO2 - Z + , -CO2R 8 , or -SO2NR 9 R 10 represents R 6 and R 7 each independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, p represents an integer of 0 to 5, and when p is an integer of 2 or more, a plurality of R 5 may be the same or different, q represents 0 or 1; X represents a halogen atom; Z + is N + (R 11 ) 4, Na + or K + represents the four R's 11 may be the same or different, R 8 represents a hydrogen atom or a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a halogen atom, R 9 and R 10 each independently represents a hydrogen atom or a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, or R 9 and R 10 and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded, R 11 represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms, or an aralkyl group having 7 to 10 carbon atoms, R 12 represents an alkanediyl group having 1 to 10 carbon atoms, R 13 represents a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and three R 13 may be the same or different, R 1 ~R 4 the substituent which the saturated hydrocarbon group having 1 to 20 carbon atoms may have is at least one selected from the group consisting of an aromatic hydrocarbon group having 6 to 10 carbon atoms, a halogen atom, a hydroxy group, a formyl group, and a carboxy group; R 1 ~R 4 The substituent that the aromatic hydrocarbon group having 6 to 10 carbon atoms may have is a halogen atom, a hydroxy group, a formyl group, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a halogen atom, -OR 8 , -SO3 - , -SO3 - Z + , -SO3R 8 , -CO2- Z + , -CO2R 8 and -SO2NR 9 R 10 At least one selected from the group consisting of R 1 ~R 4 When the saturated hydrocarbon group having 1 to 20 carbon atoms is a saturated hydrocarbon group having 2 to 20 carbon atoms, -CH2- contained in the saturated hydrocarbon group is -O-, -CO- or -NR 11 - may be replaced by R 9 and R 10 the substituent which the saturated hydrocarbon group having 1 to 20 carbon atoms may have is at least one selected from the group consisting of a hydroxy group, a formyl group, and a halogen atom; R 9 and R 10 When the saturated hydrocarbon group having 1 to 20 carbon atoms is a saturated hydrocarbon group having 2 to 20 carbon atoms, -CH2- contained in the saturated hydrocarbon group is -O-, -CO- or -NR 8 - may be replaced by R 12 When the alkanediyl group having 1 to 10 carbon atoms is an alkanediyl group having 2 to 20 carbon atoms, -CH2- contained in the alkanediyl group is -O-, -CO- or -NR 8 - may be replaced by, as well as In the compound of formula (3a), -SO3 in the form of an ion - If present, the number is one.] The compound includes at least one selected from the group consisting of compounds represented by The resin (B) is represented by the formula (1b):

[0018] [ka]

[0019] [In formula (1b), R 1B represents a hydrogen atom or a methyl group, R 2B ~R 4Beach independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, n represents an integer from 1 to 10, and * indicates the bond position. However, R 2B ~R 4B At least one of them is an alkoxy group having 1 to 6 carbon atoms.] The resin (B1) contains a structural unit (b1-1) represented by the formula: A composition, the content of the colorant (A) being 35 to 70% by weight based on the total amount of solids in the composition. [2] The composition according to [1] above, wherein the content of the colorant (A) is 40 to 70% by weight based on the total amount of solids in the composition.

[0020] [3] Ring T in formula (1a) 1a But equation (1t):

[0021] [ka]

[0022] [In formula (1t), R 45a and R 46a each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 45a and R 46a and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded, R 56a represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, L 1a is a sulfur atom, an oxygen atom or -NR 57a - represents R 57arepresents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, the substituent that the saturated hydrocarbon group having 1 to 20 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, and an amino group; The substituents that the aromatic hydrocarbon group having 6 to 14 carbon atoms may have are a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R f and an alkyl group having 1 to 8 carbon atoms which may have a substituent, The substituent that the aralkyl group having 7 to 30 carbon atoms may have is a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R f and an alkyl group having 1 to 8 carbon atoms which may have a substituent, the substituent that the alkyl group having 1 to 8 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, and an amino group; R f represents a fluoroalkyl group having 1 to 12 carbon atoms, and * indicates the bond position with the carbocation. The composition according to the above [1] or [2], wherein the ring is represented by the formula:

[0023] [4] In formula (1a), r is 2, and M r+ The composition according to any one of the above [1] to [3], wherein is a divalent metal ion.

[0024] [5] In formula (1a), R 41a and R 43a are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 42a and R 44a are each independently an alkyl group having 1 to 8 carbon atoms and -SO3 -is a phenyl group which may have at least one substituent selected from the group consisting of R 47a ~R 54a are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or -SO3 - and Ring T 1a But equation (1t):

[0025] [ka]

[0026] [In formula (1t), R 45a is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 46a However, alkyl groups having 1 to 8 carbon atoms and -SO3 - is a phenyl group which may have at least one substituent selected from the group consisting of R 56a is halogen atom, alkyl group having 1 to 8 carbon atoms and -SO3 - is a phenyl group which may have at least one substituent selected from the group consisting of L 1a is a sulfur atom, and * indicates the bond position with the carbocation. A ring represented by r is 2, k is the -SO3 - represents the sum of the number of The two anions represented by formula (1a-A) are identical, and M r+ The composition according to [1] or [2] above, wherein is a barium ion.

[0027] [6] Ring T in formula (2a) 1b But equation (2t):

[0028] [ka]

[0029] [In formula (2t), R 45b and R 46b each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 45b and R 46b and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded, R 56b represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, L 1b is a sulfur atom, an oxygen atom or -NR 57b - represents R 57b represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, the substituent that the saturated hydrocarbon group having 1 to 20 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a hydroxy group, a formyl group, and an amino group; the substituent which the aromatic hydrocarbon group having 6 to 14 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent; the substituent which the aralkyl group having 7 to 30 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent; The substituent that the alkyl group having 1 to 8 carbon atoms may have is at least one selected from the group consisting of a halogen atom, a hydroxyl group, a formyl group, and an amino group, and * indicates the bond position with the carbocation. The composition according to any one of the above [1] to [5], wherein the ring is represented by the following formula:

[0030] [7] [Y] in formula (2a) m- is a polyacid anion containing a tungsten atom. [8] [Y] in formula (2a) m- But [PW 12 O 40 ] 3- , [P2W 18 O 62 ] 6- , [P2W 18 O 62 ] 6- , [SiW 12 O 40 ] 4- , [SiW 12 O 40 ] 4- , [SiW 12 O 40 ] 4- , [P2W 17 O 61 ] 10- , [P2W 15 O 56 ] 12- , [H2P2W 12 O 48 ] 12- , [NaP5W 30 O 110 ] 14- , [SiWO 34 ] 10- , [SiW 10 O 36 ] 8- , [SiW 11 O 39 ] 8- , [SiW 11 O 39 ] 8- ,[W6O 19 ] 2- , [W 10 O 32 ] 4- or [WO4] 2- The composition according to any one of the above [1] to [6],

[0031] [9] In formula (2a), R41b , R 43b and R 47b ~R 54b are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 42b and R 44b each independently represents a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, Ring T 1b But equation (2t):

[0032] [ka]

[0033] [In formula (2t), R 45b is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 46b is a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, R 56b is a phenyl group which may have at least one substituent selected from the group consisting of a halogen atom and an alkyl group having 1 to 8 carbon atoms, L 1b is a sulfur atom, and * indicates the bond position with the carbocation. A ring represented by m is 3; the three cations represented by formula (2a-C) are identical, and [Y] m- But [PW 12 O 40 ] 3- The composition according to any one of the above [1] to [5],

[0034]

[10] In formula (3a), R 1 and R 3 each independently represents a hydrogen atom; an alkyl group having 1 to 8 carbon atoms which may have a carboxy group; an alkyl group having 1 to 8 carbon atoms, or -SONR 9 R 10or -R 12 -Si(R 13 )3, R 2 and R 4 each independently represents an alkyl group having 1 to 8 carbon atoms which may have a carboxy group; an alkyl group having 1 to 8 carbon atoms and -SONR 9 R 10 or -R 12 -Si(R 13 )3, R 5 But -SO3 - and R 6 and R 7 are both hydrogen atoms, R 9 and R 10 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 12 is an alkanediyl group having 1 to 6 carbon atoms; The Three R's 13 are both alkoxy groups having 1 to 4 carbon atoms, p is 1, and The composition according to any one of the above [1] to [9], wherein q is 0.

[0035]

[11] The composition according to any one of the above [1] to

[10] , wherein the total content of the compound represented by formula (1a), the compound represented by formula (2a) and the compound represented by formula (3a) is 50 to 100% by weight based on the total amount of the colorant (A).

[12] The composition according to any one of the above [1] to [5], wherein at least one selected from the group consisting of the compound represented by formula (1a), the compound represented by formula (2a), and the compound represented by formula (3a) is the compound represented by formula (1a), and the content of the compound represented by formula (1a) is 50 to 100% by weight based on the total amount of the colorant (A).

[13] The composition according to any one of [1], [2], and [6] to [9] above, wherein at least one selected from the group consisting of the compound represented by formula (1a), the compound represented by formula (2a), and the compound represented by formula (3a) is a compound represented by formula (2a), and the content of the compound represented by formula (2a) is 50 to 100% by weight based on the total amount of the colorant (A).

[0036]

[14] The composition according to any one of the above [1] to

[13] , wherein the resin (B1) is a copolymer comprising the structural unit (b1-1), a structural unit (b1-2) derived from a polymerizable unsaturated compound having an acidic group, and other structural units (b1-3), and the amount of the structural unit (b1-1) is 1 to 50 mol % when the total of all structural units in the copolymer is 100 mol %.

[15] The composition according to any one of the above [1] to

[14] , wherein the resin (B1) has a weight average molecular weight of 1,000 to 50,000.

[16] The composition according to any one of the above [1] to

[15] , wherein the content of the resin (B1) is 10 to 100 parts by weight per 100 parts by weight of the colorant (A).

[17] The composition according to any one of the above [1] to

[15] , wherein the content of the resin (B1) is 10 to 60 parts by weight based on 100 parts by weight of the colorant (A). Effect of the Invention

[0037] First, the composition of the present invention is produced in advance, and then the colored curable composition is produced using the composition of the present invention, whereby thickening of the colored curable composition can be suppressed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0038] The composition of the present invention includes a colorant (A), a resin (B) and a solvent (E). The composition of the present invention is characterized in that the colorant (A) includes at least one selected from the group consisting of a compound represented by formula (1a), a compound represented by formula (2a), and a compound represented by formula (3a), the resin (B) includes a resin (B1) including a structural unit (b1-1) represented by formula (1b), and the content of the colorant (A) is 35 to 70% by weight based on the total amount of solids in the composition. Here, the "total amount of solids in the composition" refers to the amount obtained by excluding the content of the solvent (H) from the total amount of the composition. The total amount of solids and the content of each component can be measured by known analytical means such as liquid chromatography or gas chromatography.

[0039] In this specification, "a compound represented by formula (1a)" may be abbreviated as "compound (1a)". Compounds, anions, and cations represented by other formulas may also be abbreviated in the same manner. Each component of the composition of the present invention, each component of the colored curable composition, and raw materials for producing each component may be used alone or in combination of two or more types, unless otherwise specified.

[0040] The present invention is characterized by using a specific colorant (i.e., at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a)). The present inventor has found that there is a problem in that the viscosity of a colored curable composition containing a specific colorant increases during storage. In order to solve this problem, the present inventor has conducted extensive research and found that the viscosity increase of the colored curable composition can be suppressed by first mixing a colorant (A) containing a specific colorant, a resin (B) containing a resin (B1) containing a structural unit (b1-1) represented by formula (1b) and a solvent (E) to produce a composition, and then mixing the resulting composition with a polymerizable compound (C), a polymerization initiator (D) and, if necessary, other components to produce a colored curable composition. The present invention will be described below in order.

[0041] <Definition> First, the definitions of groups used in the present specification will be explained. Unless otherwise specified, the groups have the following definitions. In this specification, examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom.

[0042] In the present specification, the saturated hydrocarbon group may be any of linear, branched and cyclic. Examples of the saturated hydrocarbon group having 1 to 20 carbon atoms include alkyl groups having 1 to 20 carbon atoms, such as methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, dodecyl group, hexadecyl group, icosyl group, isopropyl group, isobutyl group, isopentyl group, neopentyl group and 2-ethylhexyl group, and alicyclic saturated hydrocarbon groups having 3 to 20 carbon atoms, such as cyclopropyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclooctyl group and tricyclodecyl group.

[0043] In the present specification, the alkyl group may be either linear or branched. Examples of the alkyl group having 1 to 10 carbon atoms include those having 1 to 10 carbon atoms among the above-mentioned examples of the alkyl group having 1 to 20 carbon atoms. The same applies to examples of alkyl groups having different carbon atoms. In addition, the same applies to examples of groups other than alkyl groups having different carbon atoms. For example, examples of the saturated hydrocarbon group having 2 to 20 carbon atoms include those having 2 to 20 carbon atoms among the above-mentioned examples of the saturated hydrocarbon group having 1 to 20 carbon atoms.

[0044] In the present specification, the alkanediyl group may be either linear or branched. Examples of the alkanediyl group having 1 to 10 carbon atoms include a methylene group, an ethylene group, a trimethylene group, a tetramethylene group, a pentamethylene group, a hexamethylene group, an isopropylene group, an isobutylene group, a 2-methyltrimethylene group, an isopentylene group, an isohexylene group, an isooctylene group, and a 2-ethylhexylene group.

[0045] In the present specification, the fluoroalkyl group may be either linear or branched. Examples of the fluoroalkyl group having 1 to 12 carbon atoms include a monofluoromethyl group, a difluoromethyl group, a perfluoromethyl group, a monofluoroethyl group, a difluoroethyl group, a trifluoroethyl group, a tetrafluoroethyl group, a perfluoroethyl group, a monofluoropropyl group, a difluoropropyl group, a trifluoropropyl group, a tetrafluoropropyl group, a pentafluoropropyl group, a hexafluoropropyl group, a perfluoropropyl group, a monofluorobutyl group, a difluorobutyl group, a trifluorobutyl group, a tetrafluorobutyl group, a pentafluorobutyl group, a hexafluorobutyl group, a heptafluorobutyl group, an octafluorobutyl group, and a perfluorobutyl group.

[0046] In the present specification, the alkoxy group may be either linear or branched. Examples of the alkoxy group having 1 to 6 carbon atoms include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentyloxy group, a hexyloxy group, an isopropoxy group, an isobutoxy group, an isopentyloxy group, and a neopentyloxy group.

[0047] In this specification, examples of the aromatic hydrocarbon group having 6 to 14 carbon atoms include a phenyl group, a 1-naphthyl group, a 2-naphthyl group, a 1-anthryl group, a 2-anthryl group, and a 9-anthryl group.

[0048] In this specification, examples of the aralkyl group having 7 to 30 carbon atoms include a benzyl group, a phenethyl group, a naphthylmethyl group, and a 3-phenylpropyl group.

[0049] In the present specification, the nitrogen-containing heterocycle may be either a monocycle or a condensed ring. Examples of the 3- to 10-membered nitrogen-containing heterocycle include a pyrrolidine ring, a morpholine ring, a piperidine ring, and a piperazine ring.

[0050] In the present specification, the aromatic hydrocarbon ring may be either a monocyclic ring or a condensed ring. The aromatic hydrocarbon ring having 6 to 14 carbon atoms may be any of a benzene ring, a naphthalene ring, a phenanthrene ring, and an anthracene ring.

[0051] In the present specification, the aromatic heterocycle may be either a single ring or a condensed ring. Examples of the 5- to 10-membered aromatic heterocycle include a pyrrole ring, an oxazole ring, a pyrazole ring, an imidazole ring, a thiazole ring, a furan ring, a thiophene ring, a pyridine ring, a pyrimidine ring, a pyridazine ring, a pyrazine ring, an indole ring, a benzimidazole ring, a benzothiazole ring, a quinoline ring, and a benzofuran ring.

[0052] <Colorant (A)> The colorant (A) contains at least one selected from the group consisting of the compound (1a), the compound (2a) and the compound (3a).

[0053] First, the groups in the following formula (1a) will be explained in order.

[0054] [ka]

[0055] R in formula (1a) 41a and R 42a each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 41a and R 42a and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded.

[0056] The substituent that the saturated hydrocarbon group having 1 to 20 carbon atoms in the formula (1a) may have is at least one selected from the group consisting of a halogen atom, a hydroxy group, a formyl group and an amino group.

[0057] When the saturated hydrocarbon group having 1 to 20 carbon atoms in formula (1a) is a saturated hydrocarbon group having 2 to 20 carbon atoms, -CH2- contained in the saturated hydrocarbon group may be replaced with -O- or -CO-. Here, the -CH2- does not include -CH2- bonded to a nitrogen atom and -CH2- in a methyl group at the end of the saturated hydrocarbon group. In addition, -CH2-CH2- contained in the saturated hydrocarbon group is not replaced with -OO- or -CO-CO-.

[0058] The substituents that the aromatic hydrocarbon group having 6 to 14 carbon atoms in formula (1a) may have are a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R f and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

[0059] The substituents that the aralkyl group having 7 to 30 carbon atoms in the formula (1a) may have are a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R f and an alkyl group having 1 to 8 carbon atoms which may have a substituent. R in formula (1a) f represents a fluoroalkyl group having 1 to 12 carbon atoms.

[0060] The substituent that the alkyl group having 1 to 8 carbon atoms in the formula (1a) may have is at least one selected from the group consisting of a halogen atom, a hydroxy group, a formyl group and an amino group.

[0061] When the alkyl group having 1 to 8 carbon atoms in formula (1a) is an alkyl group having 2 to 8 carbon atoms, -CH2- contained in the alkyl group may be replaced with -O- or -CO-. Here, the -CH2- does not include -CH2- in the methyl group at the terminal of the alkyl group. In addition, -CH2-CH2- contained in the alkyl group is not replaced with -OO- or -CO-CO-.

[0062] R 41a is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms. R 42a is preferably an alkyl group having 1 to 8 carbon atoms and -SO3 - A phenyl group which may have at least one substituent selected from the group consisting of, more preferably, a phenyl group which has one or two alkyl groups having 1 to 8 carbon atoms as a substituent, and is selected from the group consisting of -SO3 - A phenyl group which may have one or two alkyl groups having 1 to 4 carbon atoms as a substituent, and preferably has one or two alkyl groups having 1 to 4 carbon atoms as a substituent, and is -SO3 - is a phenyl group which may have the following formula:

[0063] R in formula (1a) 43a and R 44a each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 43a and R 44a and form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are attached.

[0064] R 43a is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms. R 44a is preferably an alkyl group having 1 to 8 carbon atoms and -SO3- A phenyl group which may have at least one substituent selected from the group consisting of, more preferably, a phenyl group which has one or two alkyl groups having 1 to 8 carbon atoms as a substituent, and is selected from the group consisting of -SO3 - A phenyl group which may have one or two alkyl groups having 1 to 4 carbon atoms as a substituent, and preferably has one or two alkyl groups having 1 to 4 carbon atoms as a substituent, and is -SO3 - is a phenyl group which may have the following formula:

[0065] R in formula (1a) 47a ~R 54a are each independently a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, -SO3 - , -SO2-N - -SO2-R f or an alkyl group having 1 to 8 carbon atoms which may have a substituent. 47a ~R 54a are each independently preferably a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or -SO3 - More preferably, it is a hydrogen atom or -SO3 - It is.

[0066] Ring T in formula (1a) 1a represents an aromatic hydrocarbon ring having 6 to 14 carbon atoms which may have a substituent, or an aromatic heterocycle having 5 to 10 members which may have a substituent.

[0067] The substituents that the aromatic hydrocarbon ring having 6 to 14 carbon atoms in the formula (1a) may have are a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R f and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

[0068] The substituents that the 5- to 10-membered aromatic heterocycle in formula (1a) may have are a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R fand an alkyl group having 1 to 8 carbon atoms which may have a substituent.

[0069] Ring T 1a is preferably represented by the formula (1t):

[0070] [ka]

[0071] It is a ring represented by: R in formula (1t) 45a and R 46a each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 45a and R 46a and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded.

[0072] The substituent that the saturated hydrocarbon group having 1 to 20 carbon atoms in the formula (1t) may have is at least one selected from the group consisting of a halogen atom, a hydroxy group, a formyl group and an amino group.

[0073] The substituents that the aromatic hydrocarbon group having 6 to 14 carbon atoms in formula (1t) may have are a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R f and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

[0074] The substituents that the aralkyl group having 7 to 30 carbon atoms in the formula (1t) may have are a halogen atom, a nitro group, a hydroxyl group, a formyl group, -SO3 - , -SO2-N - -SO2-R fand an alkyl group having 1 to 8 carbon atoms which may have a substituent.

[0075] The substituent that the alkyl group having 1 to 8 carbon atoms in the formula (1t) may have is at least one selected from the group consisting of a halogen atom, a hydroxy group, a formyl group and an amino group.

[0076] R 45a is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms. R 46a is preferably an alkyl group having 1 to 8 carbon atoms and -SO3 - A phenyl group which may have at least one substituent selected from the group consisting of, more preferably, a phenyl group which has one or two alkyl groups having 1 to 8 carbon atoms as a substituent, and is selected from the group consisting of -SO3 - A phenyl group which may have one or two alkyl groups having 1 to 4 carbon atoms as a substituent, and preferably has one or two alkyl groups having 1 to 4 carbon atoms as a substituent, and is -SO3 - is a phenyl group which may have the following formula:

[0077] R in formula (1t) 56a represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent.

[0078] R 56a is preferably a halogen atom, an alkyl group having 1 to 8 carbon atoms, and -SO3 - A phenyl group which may have at least one substituent selected from the group consisting of, more preferably, a phenyl group which has one or two halogen atoms as a substituent and is -SO3 - A phenyl group which may have one or two fluorine atoms as a substituent, and more preferably has one or two fluorine atoms as a substituent, and is preferably a phenyl group which may have one or two fluorine atoms as a substituent, and is further preferably a phenyl group which has ... - is a phenyl group which may have the following formula:

[0079] L in formula (1t) 1a is a sulfur atom, an oxygen atom or -NR 57a - stands for R 57a represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms. 1a is preferably a sulfur atom.

[0080] The * in formula (1t) represents the bond position with the carbocation. In other words, the -* in formula (1t) represents a bond. The -* in other formulas also represents a bond.

[0081] In formula (1a), r represents an integer of 1 or more. r is preferably 2. When r is an integer of 2 or more, the compound represented by formula (1a-A):

[0082] [ka]

[0083] [In formula (1a-A), ring T 1a , R 41a ~R 44a and R 47a ~R 54a are the same as above.] The multiple anions represented by the formula (1a-A) may be the same or different. The multiple anions (1a-A) are preferably the same.

[0084] In formula (1a), k is the -SO3 - and -SO2-N - -SO2-R f and is an integer of 2 or more. k is preferably 2.

[0085] M in formula (1a) r+ is a hydrogen ion, a metal ion of r valence, or N + (R 55a )4, and four R 55a may be the same or different. 55arepresents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms, or an aralkyl group having 7 to 10 carbon atoms. r+ may be the same or different.

[0086] M r+ is preferably a metal ion having a valence of r. Examples of the metal ion having a valence of r include alkali metal ions such as lithium ion, sodium ion, and potassium ion, alkaline earth metal ions such as beryllium ion, magnesium ion, calcium ion, strontium ion, and barium ion, transition metal ions such as titanium ion, zirconium ion, chromium ion, manganese ion, iron ion, cobalt ion, nickel ion, and copper ion, and typical metal ions such as zinc ion, cadmium ion, aluminum ion, indium ion, tin ion, lead ion, and bismuth ion.

[0087] M r+ is more preferably a divalent metal ion, further preferably an alkaline earth metal ion, and particularly preferably a barium ion (Ba 2+ ).

[0088] Examples of compound (1a) include R 41a and R 43a are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 42a and R 44a are each independently an alkyl group having 1 to 8 carbon atoms and -SO3 - is a phenyl group which may have at least one substituent selected from the group consisting of R 47a ~R 54a are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or -SO3 - and Ring T 1a is a ring represented by formula (1t) [wherein R 45a is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 46a However, alkyl groups having 1 to 8 carbon atoms and -SO3 - is a phenyl group which may have at least one substituent selected from the group consisting of R 56a is halogen atom, alkyl group having 1 to 8 carbon atoms and -SO3 - is a phenyl group which may have at least one substituent selected from the group consisting of L 1a is a sulfur atom, and * indicates the bond position with the carbocation. r is 2, k is the -SO3 - represents the sum of the number of The two anions (1a-A) are identical, and M r+ But, 2+ is Compound (hereinafter sometimes referred to as “compound (1a′)”) is preferred.

[0089] In compound (1a'), R 41a and R 43a is more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and further preferably an alkyl group having 1 to 4 carbon atoms; R 42a and R 44a More preferably, each independently has one or two alkyl groups having 1 to 8 carbon atoms as a substituent, and -SO3 - A phenyl group which may have one or two alkyl groups having 1 to 4 carbon atoms as a substituent, and preferably has one or two alkyl groups having 1 to 4 carbon atoms as a substituent, and is -SO3 - R is a phenyl group which may have 47a ~R 54a is more preferably a hydrogen atom or -SO3 - and R 45a is more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and further preferably an alkyl group having 1 to 4 carbon atoms; R 46aMore preferably, it has one or two alkyl groups having 1 to 8 carbon atoms as a substituent, and -SO3 - A phenyl group which may have one or two alkyl groups having 1 to 4 carbon atoms as a substituent, and preferably has one or two alkyl groups having 1 to 4 carbon atoms as a substituent, and is -SO3 - and R 56a More preferably, it has one or two halogen atoms as a substituent and is -SO3 - A phenyl group which may have one or two fluorine atoms as a substituent, and more preferably has one or two fluorine atoms as a substituent, and is preferably a phenyl group which may have one or two fluorine atoms as a substituent, and is further preferably a phenyl group which has ... - is a phenyl group which may have the following formula:

[0090] Among the compounds (1a), the compound represented by the following formula (1a-1) is particularly preferred. In the following formula (1a-1), - " indicates that each anion has -SO3 as a substituent. - and each anion has -SO3 - The total number of -SO3 in the two anions is 2 (i.e., - This means that the total number of is 4).

[0091] [ka]

[0092] Compound (1a) can be produced in accordance with known methods (for example, the method described in Journal of Organic Chemistry, (1994), vol. 59, #11, pp. 3232-3236, the method described in JP-A-2018-127596).

[0093] Next, the groups in the following formula (2a) will be explained in order.

[0094] [ka]

[0095] R in formula (2a)41b and R 42b each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 41b and R 42b and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded.

[0096] The substituent that the saturated hydrocarbon group having 1 to 20 carbon atoms in the formula (2a) may have is at least one selected from the group consisting of a halogen atom, a hydroxy group, a formyl group, and an amino group.

[0097] When the saturated hydrocarbon group having 1 to 20 carbon atoms in formula (2a) is a saturated hydrocarbon group having 2 to 20 carbon atoms, -CH2- contained in the saturated hydrocarbon group may be replaced with -O- or -CO-. Here, the -CH2- does not include -CH2- bonded to a nitrogen atom and -CH2- in a methyl group at the end of the saturated hydrocarbon group. In addition, -CH2-CH2- contained in the saturated hydrocarbon group is not replaced with -OO- or -CO-CO-.

[0098] The substituent that the aromatic hydrocarbon group having 6 to 14 carbon atoms in formula (2a) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

[0099] The substituent that the aralkyl group having 7 to 30 carbon atoms in formula (2a) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

[0100] The substituent that the alkyl group having 1 to 8 carbon atoms in the formula (2a) may have is at least one selected from the group consisting of a halogen atom, a hydroxy group, a formyl group and an amino group.

[0101] When the alkyl group having 1 to 8 carbon atoms in formula (2a) is an alkyl group having 2 to 8 carbon atoms, -CH2- contained in the alkyl group may be replaced with -O- or -CO-. Here, -CH2- does not include -CH2- in the methyl group at the terminal of the alkyl group. Also, -CH2-CH2- contained in the alkyl group is not replaced with -OO- or -CO-CO-.

[0102] R 41b is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms. R 42b is preferably a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, more preferably a phenyl group which may have an alkyl group having 1 to 4 carbon atoms, and even more preferably a phenyl group.

[0103] R in formula (2a) 43b and R 44b each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 43b and R 44b and form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are attached.

[0104] R 43b is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms. R 44b is preferably a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, more preferably a phenyl group which may have an alkyl group having 1 to 4 carbon atoms, and even more preferably a phenyl group.

[0105] R in formula (2a) 47b ~R 54b each independently represents a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, or an optionally substituted alkyl group having 1 to 8 carbon atoms.

[0106] R 47b ~R 54b are each independently preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and further preferably a hydrogen atom.

[0107] Ring T in formula (2a) 1b represents an aromatic hydrocarbon ring having 6 to 14 carbon atoms which may have a substituent, or an aromatic heterocycle having 5 to 10 members which may have a substituent.

[0108] The substituent that the aromatic hydrocarbon ring having 6 to 14 carbon atoms in formula (2a) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

[0109] The substituent that the 5-10-membered aromatic heterocycle in formula (2a) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms that may have a substituent.

[0110] Ring T 1b is preferably represented by the formula (2t):

[0111] [ka]

[0112] It is a ring represented by: R in formula (2t) 45b and R 46beach independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent, or R 45b and R 46b and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded.

[0113] The substituent that the saturated hydrocarbon group having 1 to 20 carbon atoms in the formula (2t) may have is at least one selected from the group consisting of a halogen atom, a hydroxy group, a formyl group and an amino group.

[0114] The substituent that the aromatic hydrocarbon group having 6 to 14 carbon atoms in formula (2t) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

[0115] The substituent that the aralkyl group having 7 to 30 carbon atoms in formula (2t) may have is at least one selected from the group consisting of a halogen atom, a nitro group, a hydroxyl group, a formyl group, and an alkyl group having 1 to 8 carbon atoms which may have a substituent.

[0116] The substituent that the alkyl group having 1 to 8 carbon atoms in the formula (2t) may have is at least one selected from the group consisting of a halogen atom, a hydroxy group, a formyl group and an amino group.

[0117] R 45b is preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and even more preferably an alkyl group having 1 to 4 carbon atoms.

[0118] R 46bis preferably a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, more preferably a phenyl group having one or two alkyl groups having 1 to 8 carbon atoms as a substituent, and even more preferably a phenyl group having one or two alkyl groups having 1 to 4 carbon atoms as a substituent.

[0119] R in formula (2t) 56b represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 14 carbon atoms which may have a substituent, or an aralkyl group having 7 to 30 carbon atoms which may have a substituent.

[0120] R 56b is preferably a phenyl group which may have at least one substituent selected from the group consisting of halogen atoms and alkyl groups having 1 to 8 carbon atoms, more preferably a phenyl group which has one or two halogen atoms as a substituent, and even more preferably a phenyl group which has one or two fluorine atoms as a substituent.

[0121] L in formula (2t) 1b is a sulfur atom, an oxygen atom or -NR 57b - stands for R 57b represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms. 1b is preferably a sulfur atom. In formula (2t), * represents the bonding position with the carbocation.

[0122] In formula (2a), m represents an integer of 1 or more. m is preferably an integer of 1 to 20, more preferably an integer of 2 to 14, further preferably an integer of 2 to 8, and particularly preferably 3. When m is an integer of 2 or more, the compound represented by formula (2a-C):

[0123] [ka]

[0124] [In formula (2a-C), ring T 1b , R 41b ~R44b and R 47b ~R 54b are the same as above.] The multiple cations represented by the formula (2a-C) may be the same or different. The multiple cations represented by the formula (2a-C) are preferably the same.

[0125] [Y] in formula (2a) m- represents an anion with a valence of m. [Y] m- is preferably a polyoxyethylene anion containing a tungsten atom, more preferably [PW 12 O 40 ] 3- , [P2W 18 O 62 ] 6- , [P2W 18 O 62 ] 6- , [SiW 12 O 40 ] 4- , [SiW 12 O 40 ] 4- , [SiW 12 O 40 ] 4- , [P2W 17 O 61 ] 10- , [P2W 15 O 56 ] 12- , [H2P2W 12 O 48 ] 12- , [NaP5W 30 O 110 ] 14- , [SiWO 34 ] 10- , [SiW 10 O 36 ] 8- , [SiW 11 O 39 ] 8- , [SiW 11 O 39 ] 8- ,[W6O 19 ] 2- , [W 10 O 32 ] 4- or [WO4] 2-and more preferably [PW 12 O 40 ] 3- It is.

[0126] Examples of compound (2a) include R 41b , R 43b and R 47b ~R 54b are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 42b and R 44b each independently represents a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, Ring T 1b is a ring represented by formula (2t) [wherein R 45b is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 46b is a phenyl group which may have an alkyl group having 1 to 8 carbon atoms, R 56b is a phenyl group which may have at least one substituent selected from the group consisting of a halogen atom and an alkyl group having 1 to 8 carbon atoms, L 1b is a sulfur atom, and * indicates the bond position with the carbocation. m is 3; The three cations (2a-C) are identical, and [Y] m- But [PW 12 O 40 ] 3- is Compound (hereinafter sometimes referred to as “compound (2a′)”) is preferred.

[0127] In compound (2a'), R 41b and R 43b are each independently preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and further preferably an alkyl group having 1 to 4 carbon atoms; R 42b and R 44bare each independently preferably a phenyl group optionally having an alkyl group having 1 to 4 carbon atoms, and more preferably a phenyl group; R 47b ~R 54b are each independently more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and further preferably a hydrogen atom; R 45b is more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and further preferably an alkyl group having 1 to 4 carbon atoms; R 46b is more preferably a phenyl group having one or two alkyl groups having 1 to 8 carbon atoms as a substituent, and even more preferably a phenyl group having one or two alkyl groups having 1 to 4 carbon atoms as a substituent; and R 56b is more preferably a phenyl group having one or two halogen atoms as a substituent, and even more preferably a phenyl group having one or two fluorine atoms as a substituent.

[0128] Among the compounds (2a), the compound represented by the following formula (2a-1) is particularly preferred.

[0129] [ka]

[0130] Compound (2a) can be produced in accordance with known methods (for example, the methods described in JP-A-2015-28121, JP-A-2015-38201, etc.).

[0131] Next, the groups in the following formula (3a) will be explained in order.

[0132] [ka]

[0133] In formula (3a), R 1 and R 2each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 10 carbon atoms which may have a substituent, or -R 12 -Si(R 13 )3 or R 1 and R 2 and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded.

[0134] In formula (3a), R 3 and R 4 each independently represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an aromatic hydrocarbon group having 6 to 10 carbon atoms which may have a substituent, or -R 12 -Si(R 13 ) 3, or R 3 and R 4 and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded.

[0135] R 1 ~R 4 The substituent that the saturated hydrocarbon group having 1 to 20 carbon atoms may have is at least one selected from the group consisting of an aromatic hydrocarbon group having 6 to 10 carbon atoms, a halogen atom, a hydroxy group, a formyl group, and a carboxy group.

[0136] R 1 ~R 4 The substituent that the aromatic hydrocarbon group having 6 to 10 carbon atoms may have is a halogen atom, a hydroxy group, a formyl group, a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a halogen atom, -OR 8 , -SO3 - , -SO3 - Z + , -SO3R 8 , -CO2 - Z + , -CO2R 8 and -SO2NR 9 R 10 At least one selected from the group consisting of: In addition, the compound (3a) contains -SO3 in the form of ions. - If present, the number is one.

[0137] R 1 ~R 4 When the saturated hydrocarbon group having 1 to 20 carbon atoms is a saturated hydrocarbon group having 2 to 20 carbon atoms, -CH2- contained in the saturated hydrocarbon group is -O-, -CO- or -NR 11 Here, the -CH2- does not include -CH2- bonded to a nitrogen atom and -CH2- in a methyl group at the end of the saturated hydrocarbon group. In addition, the -CH2-CH2- in the saturated hydrocarbon group may be replaced with -OO-, -CO-CO- or -NR 11 -NR 11 - will not be replaced by

[0138] R 1 and R 3 are each independently preferably a hydrogen atom; an alkyl group having 1 to 8 carbon atoms which may have a carboxy group; an alkyl group having 1 to 8 carbon atoms, and -SONR 9 R 10 or -R 12 -Si(R 13 )3, and more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms which may have a carboxy group.

[0139] R 2 and R 4 are each independently preferably an alkyl group having 1 to 8 carbon atoms which may have a carboxy group; an alkyl group having 1 to 8 carbon atoms and -SONR 9 R 10 or -R 12 -Si(R 13 )3, more preferably an alkyl group having 1 to 4 carbon atoms; an alkyl group having 1 to 4 carbon atoms and -SO2NR 9 R 10or -R 12 -Si(R 13 )3.

[0140] In formula (3a), p represents an integer of 0 to 5. When p is an integer of 2 or more, a plurality of R 5 may be the same or different. p is preferably 1.

[0141] In formula (3a), R 5 -OH, -SO3 - , -SO3 - Z + , -SO3R 8 , -CO2 - Z + , -CO2R 8 , or -SO2NR 9 R 10 Represents Z. + is N + (R 11 ) 4, Na + or K + The four R's 11 may be the same or different. 5 is preferably -SO3 - It is.

[0142] In formula (3a), R 6 and R 7 R each independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms. 6 and R 7 are preferably both hydrogen atoms.

[0143] In formula (3a), R 8 represents a hydrogen atom or a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a halogen atom.

[0144] In formula (3a), R 9 and R 10 each independently represents a hydrogen atom or a saturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, or R 9 and R10 and are bonded to form a 3- to 10-membered nitrogen-containing heterocycle together with the nitrogen atom to which they are bonded.

[0145] R 9 and R 10 The substituent that the saturated hydrocarbon group having 1 to 20 carbon atoms may have is at least one selected from the group consisting of a hydroxy group, a formyl group, and a halogen atom.

[0146] R 9 and R 10 When the saturated hydrocarbon group having 1 to 20 carbon atoms is a saturated hydrocarbon group having 2 to 20 carbon atoms, -CH2- contained in the saturated hydrocarbon group is -O-, -CO- or -NR 8 Here, the -CH2- does not include -CH2- bonded to a nitrogen atom and -CH2- in a methyl group at the end of the saturated hydrocarbon group. In addition, the -CH2-CH2- in the saturated hydrocarbon group may be replaced with -OO-, -CO-CO- or -NR 8 -NR 8 - will not be replaced by

[0147] R 9 and R 10 are each independently preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms.

[0148] In formula (3a), R 11 represents a hydrogen atom, a saturated hydrocarbon group having 1 to 20 carbon atoms, or an aralkyl group having 7 to 10 carbon atoms.

[0149] In formula (3a), R 12 R represents an alkanediyl group having 1 to 10 carbon atoms. 12 When the alkanediyl group having 1 to 10 carbon atoms is an alkanediyl group having 2 to 20 carbon atoms, -CH2- contained in the alkanediyl group is -O-, -CO- or -NR 8Here, the -CH2- does not include -CH2- bonded to a nitrogen atom and -CH2- bonded to a silicon atom. In addition, the -CH2-CH2- contained in the alkanediyl group may be replaced with -OO-, -CO-CO- or -NR 8 -NR 8 - will not be replaced by R 12 is preferably an alkanediyl group having 1 to 6 carbon atoms.

[0150] In formula (3a), R 13 represents a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms; and three R 13 may be the same or different. 13 and are preferably both an alkoxy group having 1 to 4 carbon atoms.

[0151] In formula (3a), X represents a halogen atom. In formula (3a), q represents 0 or 1. When q is 0, (X - ) q is not present. q is preferably 0.

[0152] Examples of compound (3a) include R 1 and R 3 each independently represents a hydrogen atom; an alkyl group having 1 to 8 carbon atoms which may have a carboxy group; an alkyl group having 1 to 8 carbon atoms, or -SONR 9 R 10 or -R 12 -Si(R 13 )3, R 2 and R 4 each independently represents an alkyl group having 1 to 8 carbon atoms which may have a carboxy group; an alkyl group having 1 to 8 carbon atoms and -SONR 9 R 10or -R 12 -Si(R 13 )3, R 5 But -SO3 - and R 6 and R 7 are both hydrogen atoms, R 9 and R 10 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 12 is an alkanediyl group having 1 to 6 carbon atoms; The Three R's 13 are both alkoxy groups having 1 to 4 carbon atoms, p is 1, and q is 0 Compound (hereinafter sometimes referred to as “compound (3a′)”) is preferred.

[0153] In compound (3a'), R 1 and R 3 are each independently more preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms which may have a carboxy group, and R 2 and R 4 is more preferably an alkyl group having 1 to 4 carbon atoms; an alkyl group having 1 to 4 carbon atoms and -SONR 9 R 10 or -R 12 -Si(R 13 )3.

[0154] Compound (3a) is particularly preferably at least one selected from the group consisting of a compound represented by the following formula (3a-1), a compound represented by the following formula (3a-2), a compound represented by the following formula (3a-3), a compound represented by the following formula (3a-4), a compound represented by the following formula (3a-5), a compound represented by the following formula (3a-6), and a compound represented by the following formula (3a-7).

[0155] JPEG0007664684000021.jpg164140

[0156] In formula (3a-2) and formula (3a-3), R 14 represents -SO2-NH(CH2)-CH(CH2CH3)-CH2CH2CH2CH3.

[0157] Compound (3a) can be produced in accordance with a known method (for example, the method described in JP-A-2010-32999).

[0158] In one embodiment of the present invention, the at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a) is preferably at least one selected from the group consisting of compound (1a) and compound (2a), more preferably compound (1a) or compound (2a), and even more preferably compound (1a).

[0159] In another embodiment of the present invention, the at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a) is preferably at least one selected from the group consisting of compound (1a'), compound (2a') and compound (3a'), more preferably at least one selected from the group consisting of compound (1a') and compound (2a'), even more preferably compound (1a') or compound (2a'), and particularly preferably compound (1a').

[0160] In another embodiment of the present invention, the at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a) is preferably at least one selected from the group consisting of compound (1a-1), compound (2a-1), compound (3a-1), compound (3a-2), compound (3a-3), compound (3a-4), compound (3a-5), compound (3a-6) and compound (3a-7), more preferably at least one selected from the group consisting of compound (1a-1) and compound (2a-1), even more preferably compound (1a-1) or compound (2a-1), and particularly preferably compound (1a-1).

[0161] The colorant (A) may contain a colorant other than the compounds (1a), (2a) and (3a).

[0162] As another colorant, xanthene dyes can be used. Examples of xanthene dyes include CI Acid Red 51 (hereinafter, the description of CI Acid Red will be omitted and only the number will be described. The same applies to the others), 52, 87, 92, 94, 289, 388, CI Acid Violet 9, 30, 102, CI Basic Red 1 (Rhodamine 6G), 2, 3, 4, 8, CI Basic Red 10, 11, CI Basic Violet 10 (Rhodamine B), 11, CI Solvent Red 218, CI Mordant Red 27, CI Reactive Red 36 (Rose Bengal B), and Sulforhodamine G.

[0163] As another colorant, coumarin dyes can be used, such as CI Acid Yellow 227, 250, CI Disperse Yellow 82, 184, CI Solvent Orange 112, CI Solvent Yellow 160, 172, and the coumarin dyes described in Japanese Patent No. 1299948.

[0164] Examples of dyes other than those mentioned above include dyes listed in the Color Index (published by The Society of Dyers and Colourists) and dyes listed in Dyeing Notes (Shikisensha). Examples of dyes include azo dyes, cyanine dyes, phthalocyanine dyes, anthraquinone dyes, naphthoquinone dyes, quinoneimine dyes, methine dyes, azomethine dyes, squarylium dyes, acridine dyes, styryl dyes, quinoline dyes, and nitro dyes.

[0165] Specific examples of dyes include the following: (1) CI Solvent Dyes CI Solvent Yellow 4, 14, 15, 23, 24, 25, 38, 62, 63, 68, 79, 81, 82, 83, 89, 94, 98, 99, 162; CI Solvent Orange 2, 7, 11, 15, 26, 41, 54, 56, 99; CI Solvent Red 24, 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, 222, 227, 230, 245, 247; CI Solvent Violet 11, 13, 14, 26, 31, 36, 37, 38, 45, 47, 48, 51, 59, 60; CI Solvent Blue 14, 18, 35, 36, 45, 58, 59, 59:1, 63, 68, 69, 78, 79, 83, 94, 97, 98, 100, 101, 102, 104, 105, 111, 112, 122, 128, 132, 136, 139; CI Solvent Green 1, 3, 5, 28, 29, 32, 33; etc.

[0166] (2) CI acid dye 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 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 Red 73, 80, 91, 97, 138, 151, 211,274; CI Acid Green 3, 5, 9, 25, 27, 28, 41; CI Acid Violet 34, 120; CI Acid Blue 25, 27, 40, 45, 78, 80, 112; etc.

[0167] (3) CI Basic Dyes CI Basic Green 1; etc.

[0168] (4) CI reactive dyes CI Reactive Yellow 2, 76, 116; CI Reactive Orange 16; etc.

[0169] (5) CI Direct Dye 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 Orange 26, 34, 39, 41, 46, 50, 52, 56, 57, 61, 64, 65, 68, 70, 96, 97, 106, 107; CI Direct Blue 40; etc.

[0170] (6) CI Disperse Dyes CI Disperse Yellow 51, 54, 76; CI Disperse Violet 26, 27; CI Disperse Blue 1, 14, 56, 60; etc.

[0171] (7) CI Mordant Dyes CI Mordant Yellow 5, 8, 10, 16, 20, 26, 30, 31, 33, 42, 43, 45, 56, 61, 62, 65; 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; etc.

[0172] (8) CI Vat Dye CI Bat Green 1st Class.

[0173] Other colorants that can be used include, for example, pigments listed in the Colour Index (published by The Society of Dyers and Colourists).

[0174] Specific examples of 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, 194, 214; 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, 123, 144, 149, 166, 168, 176, 177, 180, 192, 209, 215, 216, 224, 242, 254, 255, 264, 265; Blue pigments such as CI Pigment Blue 15, 15:3, 15:4, 15:6, 60; Violet color pigments such as CI Pigment Violet 1, 19, 23, 29, 32, 36, 38; Green pigments such as CI Pigment Green 7, 36, 58; Brown pigments such as CI Pigment Brown 23, 25; Black pigments such as CI Pigment Black 1 and 7.

[0175] The content of the colorant (A) is 35 to 70% by weight, preferably 40 to 70% by weight, more preferably 40 to 65% by weight, and further preferably 45 to 60% by weight, based on the total amount of solids in the composition of the present invention.

[0176] The total content of compound (1a), compound (2a) and compound (3a) is preferably 50 to 100% by weight, more preferably 55 to 100% by weight, even more preferably 60 to 100% by weight, particularly preferably 65 to 100% by weight, and most preferably 80 to 100% by weight, based on the total amount of colorant (A).

[0177] In an embodiment in which at least one selected from the group consisting of compound (1a), compound (2a), and compound (3a) is compound (1a), the content of compound (1a) is preferably 50 to 100% by weight, more preferably 55 to 100% by weight, even more preferably 60 to 100% by weight, particularly preferably 65 to 100% by weight, and most preferably 80 to 100% by weight, based on the total amount of colorant (A).

[0178] In an embodiment in which at least one selected from the group consisting of compound (1a), compound (2a), and compound (3a) is compound (2a), the content of compound (2a) is preferably 50 to 100% by weight, more preferably 55 to 100% by weight, even more preferably 60 to 100% by weight, particularly preferably 65 to 100% by weight, and most preferably 80 to 100% by weight, based on the total amount of colorant (A).

[0179] <Resin (B)> The resin (B) has the formula (1b):

[0180] [ka]

[0181] [In formula (1b), R 1B represents a hydrogen atom or a methyl group, R 2B ~R 4B each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, n represents an integer from 1 to 10, and * indicates the bond position. However, R 2B ~R 4B At least one of them is an alkoxy group having 1 to 6 carbon atoms.] The resin (B1) includes a structural unit (b1-1) (hereinafter, may be referred to as "structural unit (b1-1)") represented by the following formula: The resin (B1) may include only one type of structural unit (b1-1), or may include two or more types of structural units (b1-1).

[0182] R 2B ~R 4B are each independently preferably a methoxy group, an ethoxy group, or a propoxy group, more preferably a methoxy group or an ethoxy group. n is preferably an integer of 1 to 6, and more preferably an integer of 1 to 3.

[0183] The resin (B1) is preferably a copolymer containing the structural unit (b1-1), the structural unit (b1-2) (hereinafter sometimes referred to as "structural unit (b1-2)") derived from a polymerizable unsaturated compound having an acidic group, and another structural unit (b1-3) (hereinafter sometimes referred to as "structural unit (b1-3)"). Here, the other structural unit (b1-3) means a structural unit different from the structural unit (b1-1) and the structural unit (b1-2). The resin (B1), which is a copolymer, may contain only one type of the structural unit (b1-1), the structural unit (b1-2) and the structural unit (b1-3), or may contain two or more types.

[0184] Examples of the acidic group contained in the structural unit (b1-2) include a carboxy group, a phosphate group (-OP(=O)(OH)2), and a sulfo group (-S(=O)2OH). Of these, the carboxy group is preferred.

[0185] When the total of all structural units in the copolymer is taken as 100 mol %, the amount of the structural unit (b1-1) is preferably 1 to 50 mol %, more preferably 5 to 40 mol %, and even more preferably 10 to 30 mol %, from the viewpoint of the solvent resistance of a color filter or the like obtained from the colored curable composition.

[0186] When the total of all structural units in the copolymer is taken as 100 mol %, the amount of the structural unit (b1-2) is preferably from 10 to 50 mol %, more preferably from 15 to 45 mol %, and even more preferably from 20 to 40 mol %, from the viewpoint of the developability of the colored curable composition.

[0187] When the total of all structural units in the copolymer is taken as 100 mol %, from the viewpoints of the developability of the colored curable composition and the solvent resistance of a color filter or the like obtained from the colored curable composition, the amount of the structural unit (b1-3) is preferably 1 to 89 mol %, more preferably 15 to 80 mol %, and even more preferably 30 to 70 mol %.

[0188] From the viewpoint of the developability of the colored curable composition, the weight average molecular weight (Mw) of the resin (B1) is 1,000 to 50,000, preferably 2,000 to 40,000, and more preferably 3,000 to 30,000. The weight average molecular weight (Mw) is a value calculated in terms of polystyrene using gel permeation chromatography (GPC).

[0189] From the viewpoints of thermal decomposition resistance, thermal yellowing resistance, and solvent resistance of a color filter obtained from the colored curable composition, the silyl group equivalent of the resin (B1) is preferably 400 to 4,000, more preferably 450 to 3,000. If the silyl group equivalent of the resin (B1) is 400 or more, it is effective in further improving the thermal decomposition resistance and thermal yellowing resistance of the colored pattern or colored coating film. The silyl group equivalent of the resin (B1) is expressed by the following formula: Silyl group equivalent = weight average molecular weight of resin (B1) / average number of silyl groups per molecule. The silyl group equivalent can be calculated from the amount of monomer used in the production of resin (B1).

[0190] When the resin (B1) is a copolymer containing the structural unit (b1-2), the acid value of the resin (B1) is preferably 20 to 300 mgKOH / g, more preferably 30 to 200 mgKOH / g, from the viewpoint of the developability of the colored curable composition. The acid value of the resin (B1) is a value measured using a mixed indicator of bromothymol blue and phenol red in accordance with JIS K6901 5.3, and is a value calculated as the amount (mg) of potassium hydroxide required to neutralize 1 g of the resin (B1), and can be determined, for example, by titration using an aqueous potassium hydroxide solution.

[0191] From the viewpoint of suppressing thickening of the colored curable composition, the content of the resin (B1) is preferably 10 to 100 parts by weight, more preferably 10 to 60 parts by weight, still more preferably 10 to 55 parts by weight, particularly preferably 25 to 55 parts by weight, and most preferably 30 to 55 parts by weight, relative to 100 parts by weight of the colorant (A).

[0192] Resin (B1) can be produced by reacting a compound represented by the following formula (2b):

[0193] [ka]

[0194] [The symbols in formula (2b) have the same meanings as above] The compound (m1-1) represented by the formula (m1-1) (hereinafter sometimes referred to as "compound (m1-1)") alone, or a monomer mixture containing compound (m1-1) and other compounds, can be produced by copolymerizing the compound (m1-1) represented by the formula (m1-1) alone, or a monomer mixture containing compound (m1-1) and other compounds, according to a known radical polymerization method.

[0195] The copolymer resin (B1) can be produced, for example, by dissolving the compound (m1-1) and, if necessary, other compounds in a solvent to prepare a solution, adding a polymerization initiator to the solution, and reacting at 50 to 130°C for 1 to 20 hours.

[0196] Resin (B1), which is a copolymer containing structural units (b1-1), (b1-2) and (b1-3), can be produced by copolymerizing a monomer mixture consisting of compound (m1-1), polymerizable unsaturated compound (m1-2) having an acidic group (hereinafter sometimes referred to as "compound (m1-2)") and other polymerizable unsaturated compound (m1-3) (hereinafter sometimes referred to as "compound (m1-3)") in the presence of a solvent according to a known radical polymerization method. Here, other polymerizable unsaturated compound (m1-3) means a polymerizable unsaturated compound different from compound (m1-1) and compound (m1-2). In addition, structural unit (b1-1) is derived from compound (m1-1), structural unit (b1-2) is derived from compound (m1-2), and structural unit (b1-3) is derived from compound (m1-3).

[0197] The copolymer resin (B1) can be produced, for example, by dissolving the compounds (m1-1), (m1-2) and (m1-3) in a solvent to prepare a solution, adding a polymerization initiator to the solution and reacting at 50 to 130° C. for 1 to 20 hours.

[0198] Examples of the compound (m1-1) include 3-(meth)acryloyloxypropylmethyldimethoxysilane, 3-(meth)acryloyloxypropylethyldimethoxysilane, 3-(meth)acryloyloxypropylmethyldiethoxysilane, 3-(meth)acryloyloxypropylethyldiethoxysilane, 3-(meth)acryloyloxypropyltrimethoxysilane, and 3-(meth)acryloyloxypropyltriethoxysilane. Among these, from the viewpoint of availability and reactivity, 3-(meth)acryloyloxypropyltrimethoxysilane and 3-(meth)acryloyloxypropyltriethoxysilane are preferred. Here, "3-(meth)acryloyloxypropylmethyldimethoxysilane" means at least one selected from 3-acryloyloxypropylmethyldimethoxysilane and 3-methacryloyloxypropylmethyldimethoxysilane. Other similar descriptions have the same meaning.

[0199] Examples of the acidic group contained in the compound (m1-2) include a carboxy group, a phosphate group (-OP(=O)(OH)2), and a sulfo group (-S(=O)2OH). Among these, a carboxy group is preferred.

[0200] Examples of the compound (m1-2) include (meth)acrylic acid, crotonic acid, cinnamic acid, vinylsulfonic acid, 2-(meth)acryloyloxyethyl succinic acid, 2-acryloyloxyethyl phthalic acid, 2-(meth)acryloyloxyethyl hexahydrophthalic acid, 2-(meth)acryloyloxyethyl acid phosphate, etc. Among these, (meth)acrylic acid is preferred from the viewpoints of availability and reactivity.

[0201] Examples of the compound (m1-3) include the following: butadiene; Methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, isopropyl (meth)acrylate, butyl (meth)acrylate, sec-butyl (meth)acrylate, isobutyl (meth)acrylate, tert-butyl (meth)acrylate, pentyl (meth)acrylate, neopentyl (meth)acrylate, benzyl (meth)acrylate, isoamyl (meth)acrylate, hexyl (meth)acrylate, 2-ethylhexyl (Meth)acrylate, benzyl (meth)acrylate, lauryl (meth)acrylate, dodecyl (meth)acrylate, cyclopentyl (meth)acrylate, cyclohexyl (meth)acrylate, methylcyclohexyl (meth)acrylate, ethylcyclohexyl (meth)acrylate, 1,4-cyclohexanedimethanol mono(meth)acrylate, rosin (meth)acrylate, norbornyl (meth)acrylate, 5-methylnorbornyl (meth)acrylate , 5-ethylnorbornyl (meth)acrylate, allyl (meth)acrylate, tetrahydrofurfuryl (meth)acrylate, 1,1,1-trifluoroethyl (meth)acrylate, perfluoroethyl (meth)acrylate, perfluoropropyl (meth)acrylate, perfluoroisopropyl (meth)acrylate, triphenylmethyl (meth)acrylate, cumyl (meth)acrylate, 3-(N,N-dimethylamino)propyl (meth)acrylate, glucuronide, Lyceryl mono(meth)acrylate, butanetriol mono(meth)acrylate, pentanetriol mono(meth)acrylate, dicyclopentenyl(meth)acrylate, dicyclopentanyl(meth)acrylate, isobornyl(meth)acrylate, adamantyl(meth)acrylate, naphthalene(meth)acrylate, anthracene(meth)acrylate, 2-(2-vinyloxyethoxy)ethyl(meth)acrylate, glycidyl(meth)acrylate, 3,4-epoxycyclohexylmethyl (meth)acrylate, (3-ethyloxetan-3-yl)methyl (meth)acrylate, 2-isocyanatoethyl (meth)acrylate, 2-isocyanatopropyl (meth)acrylate, 3-isocyanatopropyl (meth)acrylate, 2-isocyanato-1-methylethyl (meth)acrylate, 2-isocyanato-1,1-dimethylethyl (meth)acrylate, 4-isocyanatocyclohexyl (meth)acrylate, and the above-mentioned isocyanato groups (meth)acrylates having a blocked isocyanato group obtained by blocking the isocyanato group of a (meth)acrylate having an isocyanato group (e.g., 2-isocyanatoethyl (meth)acrylate) with a blocking agent, N,N-dimethylaminoethyl (meth)acrylate, N,N-diethylaminoethyl (meth)acrylate, N-tert-butylaminoethyl (meth)acrylate, tetramethylpiperidyl (meth)acrylate, hexamethylpiperidyl (meth)acrylate; (Meth)acrylic acid amide, (meth)acrylic acid N,N-dimethylamide, (meth)acrylic acid N,N-diethylamide, (meth)acrylic acid N,N-dipropylamide, (meth)acrylic acid N,N-diisopropylamide, (meth)acrylic acid anthracenylamide, N-isopropyl(meth)acrylamide, (meth)acrylic morpholine, diacetone(meth)acrylamide; Norbornene (bicyclo[2.2.1]hept-2-ene), 5-methylbicyclo[2.2.1]hept-2-ene, 5-ethylbicyclo[2.2.1]hept-2-ene, tetracyclo[4.4.0.1 2,5 .1 7,10 ]dodec-3-ene, 8-methyltetracyclo[4.4.0.1 2,5 .1 7,10 ]dodec-3-ene, 8-ethyltetracyclo[4.4.0.1 2,5 .1 7,10 ]dodec-3-ene, dicyclopentadiene, tricyclo[5.2.1.0 2,6 ]dec-8-ene, tricyclo[5.2.1.0 2,6 ]dec-3-ene, tricyclo[4.4.0.1 2,5]undec-3-ene, tricyclo[6.2.1.0 1,8 ]undec-9-ene, tricyclo[6.2.1.0 1,8 ]undec-4-ene, tetracyclo[4.4.0.1 2,5 .1 7,10 .0 1,6 ]dodec-3-ene, 8-methyltetracyclo[4.4.0.1 2,5 .1 7,10 .0 1,6 ]dodec-3-ene, 8-ethylidenetetracyclo[4.4.0.1 2,5 .1 7,12 ]dodec-3-ene, 8-ethylidenetetracyclo[4.4.0.1 2,5 .1 7,10 .0 1,6 ]dodec-3-ene, pentacyclo[6.5.1.1 3,6 .0 2,7 .0 9,13 ]Pentadec-4-ene, Pentacyclo[7.4.0.1 2,5 .1 9,12 .0 8,13 ]pentadec-3-ene, 5-norbornene-2,3-dicarboxylic anhydride, (meth)acrylic anilide, (meth)acryloylnitrile, acrolein, vinyl chloride, vinylidene chloride, vinyl fluoride, vinylidene fluoride, vinylpyridine, vinyl acetate, vinyl toluene; Styrene and its derivatives; Diethyl citraconate, diethyl maleate, diethyl fumarate, diethyl itaconate; Maleic anhydride, itaconic anhydride, citraconic anhydride.

[0202] From the viewpoints of availability and reactivity, the compound (m1-3) is preferably methyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, benzyl (meth)acrylate, dicyclopentanyl (meth)acrylate, glycidyl (meth)acrylate, (3-ethyloxetan-3-yl)methyl (meth)acrylate, N,N-diethylaminoethyl (meth)acrylate, (meth)acrylic acid N,N-dimethylamide, (meth)acrylic morpholine, styrene, vinyltoluene, or norbornene, and more preferably methyl (meth)acrylate, benzyl (meth)acrylate, dicyclopentanyl (meth)acrylate, glycidyl (meth)acrylate, (3-ethyloxetan-3-yl)methyl (meth)acrylate, styrene, or vinyltoluene.

[0203] From the viewpoint of resistance to thermal decomposition and resistance to thermal yellowing, the compound (m1-3) is preferably an alkyl (meth)acrylate, and more preferably methyl (meth)acrylate, benzyl (meth)acrylate, or dicyclopentanyl (meth)acrylate.

[0204] From the viewpoint of the solvent resistance of a color filter or the like obtained from the colored curable composition, the compound (m1-3) is preferably a polymerizable compound having a functional group that reacts with an acidic group (e.g., a glycidyl group, an oxetanyl group, an isocyanato group, a blocked isocyanato group), and more preferably glycidyl (meth)acrylate or (3-ethyloxetan-3-yl)methyl methacrylate.

[0205] Examples of blocking agents used for blocking the above-mentioned isocyanato groups include the following: Lactam blocking agents such as ε-caprolactam, δ-valerolactam, γ-butyrolactam, and β-propiolactam; Alcohol-based blocking agents such as methanol, ethanol, propanol, butanol, ethylene glycol, methyl cellosolve, butyl cellosolve, methyl carbitol, benzyl alcohol, phenyl cellosolve, furfuryl alcohol, and cyclohexanol; phenol-based blocking agents such as phenol, cresol, xylenol, ethylphenol, o-isopropylphenol, butylphenols such as p-tert-butylphenol, p-tert-octylphenol, nonylphenol, dinonylphenol, styrenated phenol, oxybenzoic acid esters, thymol, p-naphthol, p-nitrophenol, and p-chlorophenol; Active methylene blocking agents such as dimethyl malonate, diethyl malonate, methyl acetoacetate, ethyl acetoacetate, and acetylacetone; mercaptan-based blocking agents such as butyl mercaptan, thiophenol, and tert-dodecyl mercaptan; Amine-based blocking agents such as diphenylamine, phenylnaphthylamine, aniline, and carbazole; Acid amide blocking agents such as acetanilide, acetanisidide, acetate amide, and benzamide; Acid imide-based blocking agents such as succinimide and maleimide; Imidazole-based blocking agents such as imidazole, 2-methylimidazole, and 2-ethylimidazole; Urea-based blocking agents such as urea, thiourea, and ethyleneurea; Carbamate blocking agents such as N-phenylcarbamate phenyl and 2-oxazolidone; Imine-based blocking agents such as ethyleneimine and polyethyleneimine; Oxime-based blocking agents such as formaldoxime, acetaldoxime, acetoxime, methyl ethyl ketoxime, methyl isobutyl ketoxime, and cyclohexanone oxime; Bisulfite blocking agents such as sodium bisulfite and potassium bisulfite.

[0206] In order to control the weight molecular weight (Mw) and polydispersity (Mw / Mn) of the resin (B1) within a preferred range and to suppress gelation during polymerization, the solvent used in the polymerization preferably contains a hydroxyl group-containing solvent having 3 to 10 carbon atoms. Examples of the hydroxyl group-containing solvent having 3 to 10 carbon atoms include monoalcohols such as propyl alcohol, butyl alcohol, pentyl alcohol, hexyl alcohol, octyl alcohol, nonyl alcohol, decyl alcohol, and benzyl alcohol; and (poly)alkylene glycol monoalkyl ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, and tripropylene glycol monomethyl ether.

[0207] The solvent used in the polymerization may contain a solvent other than the hydroxy group-containing solvent having 3 to 10 carbon atoms. Examples of the solvent include (poly)alkylene glycol monoalkyl ether acetates such as ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, propylene glycol monomethyl ether acetate, and propylene glycol monoethyl ether acetate; ethers such as diethylene glycol dimethyl ether, diethylene glycol methyl ethyl ether, diethylene glycol diethyl ether, and tetrahydrofuran; ketones such as methyl ethyl ketone, cyclohexanone, 2-heptanone, and 3-heptanone; methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, ethyl 3-ethoxy ... Examples of suitable esters include ethyl cypropionate, ethyl ethoxyacetate, ethyl hydroxyacetate, 3-methyl-3-methoxybutyl acetate, 3-methyl-3-methoxybutyl propionate, ethyl acetate, butyl acetate, propyl acetate, isopropyl acetate, butyl acetate, isobutyl acetate, amyl acetate, isoamyl acetate, butyl propionate, ethyl butyrate, propyl butyrate, isopropyl butyrate, butyl butyrate, methyl pyruvate, ethyl pyruvate, propyl pyruvate, methyl acetoacetate, ethyl acetoacetate, and ethyl 2-oxobutyrate; aromatic hydrocarbons such as toluene and xylene; and carboxylic acid amides such as N-methylpyrrolidone, N,N-dimethylformamide, and N,N-dimethylacetamide. Among these, (poly)alkylene glycol monoalkyl ether acetates are preferred from the viewpoint of reactivity.

[0208] The content of the hydroxyl group-containing solvent having 3 to 10 carbon atoms relative to the total amount of the solvent used in the polymerization is preferably 10 to 100% by weight, and more preferably 20 to 100% by weight, from the viewpoint of controlling the weight molecular weight and polydispersity (Mw / Mn) of the resin (B1).

[0209] The amount of the solvent used in the polymerization is not particularly limited, but is preferably 30 to 1,000 parts by weight, and more preferably 50 to 800 parts by weight, relative to 100 parts by weight of the total amount of the compounds (m1-1), (m1-2) and (m1-3) used.

[0210] The polymerization initiator that can be used in the polymerization is not particularly limited, but examples thereof include 2,2'-azobis(isobutyronitrile), 2,2'-azobis(2,4-dimethylvaleronitrile), 2,2'-azobis(isobutyric acid) dimethyl, benzoyl peroxide, tert-butylperoxy-2-ethylhexanoate, etc. The amount of the polymerization initiator used is not particularly limited, but is preferably 0.5 to 20 parts by weight, more preferably 1.0 to 10 parts by weight, relative to 100 parts by weight of the total amount of the compound (m1-1), the compound (m1-2) and the compound (m1-3) used.

[0211] Resin (B) may contain resin (B2) different from resin (B1). Resin (B2) is preferably an alkali-soluble resin, and is preferably a polymer containing a structural unit derived from at least one monomer (hereinafter sometimes referred to as "monomer (m2-1)") selected from the group consisting of unsaturated carboxylic acids and unsaturated carboxylic anhydrides. The polymer may contain only one type of structural unit, or may contain two or more types.

[0212] Resin (B2) is more preferably a copolymer containing a structural unit derived from monomer (m2-1) and a structural unit derived from a monomer having a cyclic ether structure having 2 to 4 carbon atoms and an ethylenically unsaturated bond (hereinafter sometimes referred to as "monomer (m2-2)"). The copolymer may contain other structural units. Examples of the other structural units include a structural unit derived from a monomer different from monomer (m2-1) and monomer (m2-2) (hereinafter sometimes referred to as "monomer (m2-3)"), a structural unit having an ethylenically unsaturated bond, and the like. The copolymer may contain only one type of the structural units, or two or more types of the structural units.

[0213] Examples of the monomer (m2-1) include the following: 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-carboxymethylbicyclo[2.2.1]hept-2-ene and 5-carboxyethylbicyclo[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 that contain hydroxy and carboxy groups in the same molecule, such as α-(hydroxymethyl)acrylic acid.

[0214] As the monomer (m2-1), acrylic acid, methacrylic acid and maleic anhydride are preferred from the standpoint of reactivity and the solubility of the resulting resin in an alkaline aqueous solution.

[0215] The monomer (m2-2) is a polymerizable compound having a cyclic ether structure having 2 to 4 carbon atoms and an ethylenically unsaturated bond. The monomer (m2-2) is preferably a monomer having a cyclic ether structure having 2 to 4 carbon atoms and a (meth)acryloyloxy group. Examples of the cyclic ether structure having 2 to 4 carbon atoms include an oxirane ring, an oxetane ring, and a tetrahydrofuran ring.

[0216] Examples of the monomer (m2-2) include a monomer having an oxiranyl group and an ethylenically unsaturated bond (hereinafter sometimes referred to as "monomer (m2-2-1)"), a monomer having an oxetanyl group and an ethylenically unsaturated bond (hereinafter sometimes referred to as "monomer (m2-2-2)"), and a monomer having a tetrahydrofuryl group and an ethylenically unsaturated bond (hereinafter sometimes referred to as "monomer (m2-2-3)").

[0217] Examples of the monomer (m2-2-1) include a monomer having a structure in which a linear or branched aliphatic unsaturated hydrocarbon has been epoxidized (hereinafter sometimes referred to as "monomer (m2-2-1a)") and a monomer having a structure in which an alicyclic unsaturated hydrocarbon has been epoxidized (hereinafter sometimes referred to as "monomer m2-2-1b)").

[0218] The monomer (m2-2-1a) is preferably a monomer having a glycidyl group and an ethylenically unsaturated bond. Examples of the monomer (m2-2-1a) include glycidyl (meth)acrylate, β-methyl glycidyl (meth)acrylate, β-ethyl glycidyl (meth)acrylate, glycidyl vinyl ether, vinylbenzyl glycidyl ether, α-methyl vinylbenzyl glycidyl ether, 2,3-bis(glycidyloxymethyl)styrene, 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.

[0219] Examples of the monomer (m2-2-1b) 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).

[0220] [ka]

[0221] [In formula (BI) and formula (BII), R a and R b each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms which may have a hydroxyl group, X a and X b are each independently a single bond, *-R c -, *-R c -O-, *-R c -S- or *-R c represents -NH-, R c represents an alkanediyl group having 1 to 6 carbon atoms, and * indicates the bond position to O.]

[0222] Examples of the compound represented by formula (BI) include compounds represented by any of formulas (I-1) to (I-15). Among them, compounds represented by any of formulas (I-1), (I-3), (I-5), (I-7), (I-9) and (I-11) to (I-15) are preferred, and compounds represented by any of formulas (I-1), (I-7), (I-9) and (I-15) are more preferred.

[0223] [ka]

[0224] Examples of the compound represented by formula (BII) include compounds represented by any of formulas (II-1) to (II-15). Among them, compounds represented by any of formulas (II-1), (II-3), (II-5), (II-7), (II-9) and (II-11) to (II-15) are preferred, and compounds represented by any of formulas (II-1), (II-7), (II-9) and (II-15) are more preferred.

[0225] [ka]

[0226] In addition, 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 molar ratio of the compound represented by formula (BI) and the compound represented by formula (BII) (the compound represented by formula (BI) : 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.

[0227] Examples of the monomer (m2-3) include the following: 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, tricyclo[5.2.1.0 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 ](meth)acrylates 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)acrylates 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; Vinyl-containing aromatic compounds such as styrene, α-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; Dienes such as 1,3-butadiene, isoprene and 2,3-dimethyl-1,3-butadiene.

[0228] From the viewpoint of reactivity and heat resistance, the monomer (m2-3) is preferably styrene, vinyltoluene, tricyclo[5.2.1.0 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.

[0229] The structural unit having an ethylenically unsaturated bond is preferably a structural unit having a (meth)acryloyl group.The resin (B2) having such a structural unit can be obtained by adding a monomer having an ethylenically unsaturated bond and a group capable of reacting with the group of the structural unit to a polymer containing a structural unit derived from a monomer (m2-1) and a structural unit derived from a monomer (m2-2).

[0230] Examples of structural units having an ethylenically unsaturated bond include structural units obtained by adding glycidyl (meth)acrylate to a (meth)acrylic acid unit, structural units obtained by adding 2-hydroxyethyl (meth)acrylate to a maleic anhydride unit, structural units obtained by adding (meth)acrylic acid to a glycidyl (meth)acrylate unit, and structural units obtained by adding a carboxylic acid anhydride to a structural unit having a hydroxy group.

[0231] A polymer containing a structural unit derived from the monomer (m2-1) can be produced, for example, by polymerizing a monomer constituting a structural unit of the polymer in a solvent in the presence of a polymerization initiator. The polymerization initiator and the solvent are not particularly limited, and those usually used in the relevant field can be used. Examples of the polymerization initiator include azo compounds (2,2'-azobisisobutyronitrile, 2,2'-azobis(2,4-dimethylvaleronitrile), etc.) and organic peroxides (benzoyl peroxide, etc.). The solvent is not particularly limited as long as it dissolves each monomer, and examples of the solvent include the solvent (H) described below. The obtained polymer may be used as it is after the reaction, or may be a concentrated or diluted solution, or may be taken out as a solid (powder) by a method such as reprecipitation.

[0232] In the production of a polymer containing a structural unit derived from the monomer (m2-1), a carboxylic acid anhydride having an ethylenically unsaturated bond may be used as a monomer. 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, and 5,6-dicarboxybicyclo[2.2.1]hept-2-ene anhydride.

[0233] Examples of the resin (B2) include 3,4-epoxycyclohexylmethyl(meth)acrylate / (meth)acrylic acid copolymer, 3,4-epoxytricyclo[5.2.1.0 2,6 ]decyl (meth)acrylate / (meth)acrylic acid copolymer, 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 (meth)acrylate / (meth)acrylic acid / N-cyclohexylmaleimide copolymer, 3,4-epoxytricyclo[5.2.1.0 2,6]decyl (meth)acrylate / (meth)acrylic acid / N-cyclohexylmaleimide / 2-hydroxyethyl (meth)acrylate copolymer, 3,4-epoxytricyclo[5.2.1.0 2,6 ] Decyl (meth)acrylate / (meth)acrylic acid / vinyl toluene copolymer, 3,4-epoxytricyclo[5.2.1.0 2,6 ] Decyl (meth)acrylate / (meth)acrylic acid / 2-ethylhexyl (meth)acrylate copolymer, 3,4-epoxytricyclo[5.2.1.0 2,6 ]Decyl (meth)acrylate / Tricyclo[5.2.1.0 2,6 ]Decenyl (meth)acrylate / (meth)acrylic acid / N-cyclohexylmaleimide copolymer, 3-methyl-3-(meth)acryloyloxymethyloxetane / (meth)acrylic acid / styrene copolymer, benzyl (meth)acrylate / (meth)acrylic acid copolymer, styrene / (meth)acrylic acid copolymer, and resins described in JP-A-9-106071, JP-A-2004-29518, and JP-A-2004-361455 are examples thereof.

[0234] When a combination of two or more resins (B2) is used, said combinations are preferably 2,6 ] decyl (meth) acrylate / (meth) acrylic acid copolymer, 3,4-epoxy tricyclo[5.2.1.0 2,6 ]decyl (meth)acrylate / (meth)acrylic acid / N-cyclohexylmaleimide / 2-hydroxyethyl (meth)acrylate copolymer, 3,4-epoxytricyclo[5.2.1.0 2,6 ]decyl (meth)acrylate / (meth)acrylic acid / vinyl toluene copolymer, and 3,4-epoxytricyclo[5.2.1.0 2,6 ] decyl (meth)acrylate / (meth)acrylic acid / 2-ethylhexyl (meth)acrylate copolymer.

[0235] The weight average molecular weight (Mw) of the resin (B2) is preferably 3,000 to 100,000, more preferably 5,000 to 50,000, and further preferably 5,000 to 30,000. The polydispersity (Mw / Mn) of the resin (B2) (i.e., the ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn)) is preferably 1.1 to 6, and more preferably 1.2 to 4. Here, the weight average molecular weight (Mw) and number average molecular weight (Mn) of the resin (B2) are values ​​calculated in terms of polystyrene using gel permeation chromatography (GPC).

[0236] The acid value (solid content equivalent value) of the resin (B2) is preferably 10 to 300 mgKOH / g, more preferably 20 to 250 mgKOH / g, even more preferably 20 to 200 mgKOH / g, even more preferably 20 to 170 mgKOH / g, even more preferably 30 to 170 mgKOH / g, particularly preferably 50 to 150 mgKOH / g, particularly preferably 60 to 140 mgKOH / g, and most preferably 60 to 135 mgKOH / g. The acid value of the resin (B2) is a value calculated as the amount (mg) of potassium hydroxide required to neutralize 1 g of the resin (B2), and can be determined, for example, by titration using an aqueous potassium hydroxide solution.

[0237] When the resin (B2) is used, the content thereof relative to 100 parts by weight of the colorant (A) is preferably 10 to 40 parts by weight, and more preferably 10 to 30 parts by weight, from the viewpoints of the storage stability of the colored curable composition and the heat resistance of a color filter or the like obtained from the colored curable composition.

[0238] <Solvent (E)> The solvent (E) is not particularly limited, and solvents known in the field of colored curable compositions 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. The concept of "-O-" does not include "-O-" in "-COO-", and the concept of "-CO-" does not include "-CO-" in "-COO-".

[0239] 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.

[0240] 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-methoxybutanol, 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.

[0241] Examples of the ether ester solvent 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-methylpropionate, 2-ethoxy-2-methylpropionate, and methyl 2-ethoxypropionate. Examples of the ethyl ether acetate 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.

[0242] Examples of ketone solvents include 4-hydroxy-4-methyl-2-pentanone, acetone, 2-butanone, 2-heptanone, 3-heptanone, 4-heptanone, 4-methyl-2-pentanone, diacetone alcohol, cyclopentanone, cyclohexanone, and isophorone.

[0243] Examples of the alcohol solvent include methanol, ethanol, propanol, butanol, hexanol, cyclohexanol, ethylene glycol, propylene glycol, and glycerin.

[0244] Aromatic hydrocarbon solvents include, for example, benzene, toluene, xylene, and mesitylene.

[0245] Examples of the amide solvent include N,N-dimethylformamide, N,N-dimethylacetamide, and N-methylpyrrolidone.

[0246] The solvent (E) is preferably at least one selected from the group consisting of 3-methoxybutanol, propylene glycol monomethyl ether acetate, ethyl lactate, propylene glycol monomethyl ether, ethyl 3-ethoxypropionate, ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diacetone alcohol, 4-hydroxy-4-methyl-2-pentanone and N,N-dimethylformamide, more preferably at least one selected from the group consisting of 3-methoxybutanol, propylene glycol monomethyl ether acetate, propylene glycol monomethyl ether, ethyl lactate, diacetone alcohol and ethyl 3-ethoxypropionate, and even more preferably at least one selected from the group consisting of 3-methoxybutanol, propylene glycol monomethyl ether acetate and diacetone alcohol.

[0247] From the viewpoint of dispersibility, the content of the solvent (E) is preferably 70 to 95% by weight, more preferably 75 to 90% by weight, and further preferably 80 to 90% by weight, based on the total amount of the composition of the present invention.

[0248] <Other components of the composition> The composition of the present invention may contain other components different from the above-mentioned components, as long as the effects of the present invention are not impaired. Examples of other components include additives known in the field of colored curable compositions.

[0249] As another component, a dispersant may be used. Examples of dispersants include surfactants. The surfactant may be any of cationic surfactants, anionic surfactants, nonionic surfactants, and amphoteric surfactants. Examples of surfactants include polyester surfactants, polyamine surfactants, and acrylic surfactants. Examples of commercially available dispersants include KP (manufactured by Shin-Etsu Chemical Co., Ltd.), FLOWRENE (manufactured by Kyoeisha Chemical Co., Ltd.), Solsperse (registered trademark) (manufactured by Zeneca), EFKA (manufactured by BASF), AJISPER (registered trademark) (manufactured by Ajinomoto Fine-Techno Co., Ltd.), DISPERBYK (registered trademark) (manufactured by BYK Japan Co., Ltd.), and BYKLPN (manufactured by BYK Japan Co., Ltd.).

[0250] When a dispersant is used, the content thereof is preferably 35 to 100 parts by weight, more preferably 35 to 65 parts by weight, further preferably 40 to 65 parts by weight, and particularly preferably 40 to 60 parts by weight, relative to 100 parts by weight of the colorant (A).

[0251] <Method of producing the composition> The composition of the present invention can be produced, for example, by mixing a colorant (A) containing at least one selected from the group consisting of compound (1a), compound (2a) and compound (3a), a resin (B) containing a resin (B1), a solvent (E), and, if necessary, other components (e.g., a dispersant).

[0252] There is no particular limitation on the equipment used to mix the components, and any equipment known in the field of colored curable compositions can be used. When a component (e.g., a pigment) that is insoluble in the solvent (E) is used, it is preferable to thoroughly stir the mixture of the components using a bead mill, a paint conditioner, or the like.

[0253] <Colored curable composition> The colored curable composition can be produced by mixing the composition of the present invention obtained as described above with a polymerizable compound (C) and a polymerization initiator (D).

[0254] In the production of the colored curable composition, a component other than the composition of the present invention, the polymerizable compound (C) and the polymerization initiator (D) may be used. For example, a solvent (E) may be further added. Examples of the solvent (E) that can be used in the production of the colored curable composition include those described in the solvent (E) of the composition of the present invention.

[0255] The content of the solvent (E) is preferably from 70 to 90% by weight, more preferably from 75 to 90% by weight, and further preferably from 80 to 90% by weight, based on the total amount of the colored curable composition.

[0256] The viscosity (=initial viscosity) of the colored curable composition immediately after production is preferably 3 to 15 mPa s, more preferably 3 to 13 mPa s, and even more preferably 3 to 10 mPa s. This initial viscosity is a value measured using a cone-plate (E-type) viscometer under conditions of a rotation speed of 100 rpm and a measurement temperature of 23°C.

[0257] <Polymerizable compound (C)> The polymerizable compound (C) is a compound that can be polymerized by the active radical and / or acid generated from the polymerization initiator (D). The polymerizable compound (C) is preferably a radical polymerizable compound. Examples of the radical polymerizable compound include compounds having a polymerizable ethylenically unsaturated bond. The radical polymerizable compound is preferably a (meth)acrylate.

[0258] Examples of the polymerizable compound (C) include the following: Compounds having one ethylenically unsaturated bond, such as nonylphenylcarbitol acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-ethylhexylcarbitol acrylate, 2-hydroxyethyl acrylate, and N-vinylpyrrolidone; Compounds having two ethylenically unsaturated bonds, such as 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; Compounds having three ethylenically unsaturated bonds, such as trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, and tris(2-(meth)acryloyloxyethyl)isocyanurate; Compounds having four ethylenically unsaturated bonds, such as pentaerythritol tetra(meth)acrylate, ethylene glycol modified pentaerythritol tetra(meth)acrylate, propylene glycol modified pentaerythritol tetra(meth)acrylate, and caprolactone modified pentaerythritol tetra(meth)acrylate; Compounds having five ethylenically unsaturated bonds, such as dipentaerythritol penta(meth)acrylate; Compounds having six ethylenically unsaturated bonds, such as dipentaerythritol hexa(meth)acrylate, ethylene glycol modified dipentaerythritol hexa(meth)acrylate, propylene glycol modified dipentaerythritol hexa(meth)acrylate, and caprolactone modified dipentaerythritol hexa(meth)acrylate; Compounds having seven or more ethylenically unsaturated bonds, such as tripentaerythritol hepta(meth)acrylate, tripentaerythritol octa(meth)acrylate, tetrapentaerythritol nona(meth)acrylate, and tetrapentaerythritol deca(meth)acrylate.

[0259] The polymerizable compound (C) is preferably a polymerizable compound having 3 or more ethylenically unsaturated bonds, more preferably a polymerizable compound having 5 or 6 ethylenically unsaturated bonds. Specifically, dipentaerythritol penta(meth)acrylate and dipentaerythritol hexa(meth)acrylate are preferred. Commercially available products of the polymerizable compound (C) include, for example, KAYARAD (registered trademark) DPHA (Nippon Kayaku Co., Ltd.), A-TMM-3LM-N (Shin-Nakamura Chemical Co., Ltd.) and A9550 (Shin-Nakamura Chemical Co., Ltd.).

[0260] The molecular weight of the polymerizable compound (C) is preferably from 150 to 2,900, more preferably from 250 to 1,500. The molecular weight of the polymerizable compound (C) of 1,000 or more is a weight average molecular weight (Mw) calculated in terms of polystyrene using gel permeation chromatography (GPC).

[0261] The content of the polymerizable compound (C) is preferably 7 to 65% by weight, more preferably 13 to 60% by weight, and further preferably 17 to 55% by weight, based on the total amount of solids in the colored curable composition. When the content of the polymerizable compound (C) is within the above range, the residual film rate during colored pattern formation and the chemical resistance of the color filter tend to be improved.

[0262] <Polymerization initiator (D)> The polymerization initiator (D) is not particularly limited as long as it is a compound that generates active radicals, acids, etc. by the action of light or heat and can initiate polymerization of the polymerizable compound (C), and a known polymerization initiator can be used. The polymerization initiator (D) is preferably a photoradical polymerization initiator. It is more preferable that the polymerizable compound (C) is a radical polymerizable compound and the polymerization initiator (D) is a photoradical polymerization initiator (i.e., the curable composition is a photocurable composition).

[0263] The photoradical polymerization initiator is preferably at least one selected from the group consisting of O-acyloxime compounds, alkylphenone compounds, triazine compounds, acylphosphine oxide compounds and biimidazole compounds, and more preferably an O-acyloxime compound.

[0264] An O-acyloxime compound is a compound having a partial structure represented by formula (d1) (in the following formula, * represents the bonding position).

[0265] [ka]

[0266] 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-[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, N-benzoyloxy-1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]-3-cyclopentylpropan-1-one-2-imine, N-acetyloxy-1-[4-(2-hydroxyethyloxy)phenylsulfanylphenyl]propan-1-one-2-imine, and the like. Commercially available products such as TR-PBG327 (manufactured by Changzhou Strong Electronic New Materials Co., Ltd.), Irgacure (registered trademark) OXE01, Irgacure (registered trademark) OXE02, Irgacure (registered trademark) OXE03, Irgacure (registered trademark) OXE04 (all manufactured by BASF), and N-1919 (manufactured by ADEKA) may also be used.

[0267] The alkylphenone compound is a compound having a partial structure represented by formula (d2) or (d3) (in the following formulas, * indicates a bonding position). In these partial structures, the benzene ring may have a substituent.

[0268] [ka]

[0269] Examples of the compound having a partial structure represented by formula (d2) include 2-methyl-2-morpholino-1-(4-methylsulfanylphenyl)propan-1-one, 2-dimethylamino-1-(4-morpholinophenyl)-2-benzylbutan-1-one, 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(4-morpholinyl)phenyl]butan-1-one, etc. Commercially available products such as Irgacure (registered trademark) 369, Irgacure (registered trademark) 907, and Irgacure (registered trademark) 379 (all manufactured by BASF) may also be used.

[0270] Examples of compounds having a partial structure represented by formula (d3) 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.

[0271] From the viewpoint of sensitivity, the alkylphenone compound is preferably a compound having a partial structure represented by formula (d2).

[0272] Examples of the triazine compound 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, 2,4-bis(trichloromethyl)-6-[2-(3,4-dimethoxyphenyl)ethenyl]-1,3,5-triazine, and the like.

[0273] 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.

[0274] 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 with carboalkoxy groups (see, for example, JP-A-7-10913).

[0275] Examples of other polymerization initiators (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, o-benzoyl methyl benzoate, 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.

[0276] Examples of the acid generator include onium salts such as 4-hydroxyphenyl dimethylsulfonium p-toluenesulfonate, 4-hydroxyphenyl dimethylsulfonium hexafluoroantimonate, 4-acetoxyphenyl dimethylsulfonium p-toluenesulfonate, 4-acetoxyphenyl methyl benzylsulfonium hexafluoroantimonate, triphenylsulfonium p-toluenesulfonate, triphenylsulfonium hexafluoroantimonate, diphenyliodonium p-toluenesulfonate, and diphenyliodonium hexafluoroantimonate; nitrobenzyl tosylates; and benzoin tosylates.

[0277] The content of the polymerization initiator (D) is preferably 0.1 to 30 parts by weight, more preferably 1 to 20 parts by weight, based on 100 parts by weight in total of the resin (B) and the polymerizable compound (C).

[0278] <Other Components of Colored Curable Composition> The colored curable composition may contain other components different from the above-mentioned components. Examples of the other components include additives known in the field of colored curable compositions.

[0279] As another component, a leveling agent may be used. Examples of the leveling agent include silicone-based surfactants and fluorine-based surfactants.

[0280] Examples of silicone surfactants include surfactants having siloxane bonds in the molecule. Commercially available products thereof include, for example, Toray Silicone DC3PA, SH7PA, DC11PA, SH21PA, SH28PA, SH29PA, SH30PA, and SH8400 (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).

[0281] The silicone surfactant may have a fluorine atom. Examples of silicone surfactants having a fluorine atom include Megafac (registered trademark) R08, BL20, F475, F477, and F443 (manufactured by DIC Corporation).

[0282] Examples of fluorine-based surfactants include surfactants having fluorocarbon chains in the molecule. Examples of commercially available products include Fluorad (registered trademark) FC430, FC431 (manufactured by Sumitomo 3M), 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 Asahi Glass Co., Ltd.) and E5844 (manufactured by Daikin Fine Chemicals Research Institute, Ltd.).

[0283] When a leveling agent is used, its content is preferably 0.001 to 0.2% by weight, more preferably 0.002 to 0.1% by weight, and further preferably 0.01 to 0.05% by weight, based on the total amount of the colored curable composition. When the content of the leveling agent is within the above range, the flatness of the color filter obtained from the colored curable composition can be improved. EXAMPLES

[0284] 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 practiced with appropriate modifications within the scope of the above and below, all of which are included in the technical scope of the present invention. In addition, "parts" in the following examples means "parts by weight," and "%" means "% by weight" except for the viscosity increase rate (%) described below.

[0285] Production Example 1: Production of Resin (B1-1) 750.0 parts of 3-methoxybutanol was placed in a flask equipped with a stirrer, a dropping funnel, a condenser, a thermometer and a gas inlet tube, and the mixture was stirred while being replaced with nitrogen, and heated to 80°C. Next, a monomer mixture consisting of 25.6 parts of methacrylic acid, 146.4 parts of 3-methacryloyloxypropyltrimethoxysilane and 49.2 parts of methyl methacrylate was added with 28.8 parts of 2,2'-azobis(2,4-dimethylvaleronitrile) (polymerization initiator) and dropped into the flask from the dropping funnel. After the dropwise addition, the mixture was stirred at 80°C for 5 hours to carry out a copolymerization reaction, and a copolymer (hereinafter referred to as "resin (B1-1)") solution (solid content 20%) was obtained. The acid value (solid content equivalent value) of resin (B1-1) was 82 mgKOH / g, its weight average molecular weight (Mw) was 5,500, and its silyl group equivalent was 500.

[0286] Production Example 2: Production of Resin (B2-1) A flask equipped with a reflux condenser, a dropping funnel and a stirrer was filled 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 2,6 ] A solution of 289 parts of a mixture of decan-9-yl acrylate (content ratio 50:50 in molar ratio) dissolved in 125 parts of propylene glycol monomethyl ether acetate was dropped using a dropping pump over about 5 hours. Meanwhile, a solution of 33 parts of a polymerization initiator 2,2-azobis(2,4-dimethylvaleronitrile) dissolved in 235 parts of propylene glycol monomethyl ether acetate was dropped into the flask using another dropping pump over about 6 hours. After the dropping of the polymerization initiator was completed, the mixture was kept at 80°C for about 4 hours and then cooled to room temperature to obtain a copolymer (hereinafter referred to as "resin (B2-1)") solution (solid content 35.1%). The acid value (solid content equivalent value) of resin (B2-1) was 77 mgKOH / g, its weight average molecular weight (Mw) was 9,200, and its polydispersity (Mw / Mn) was 2.08.

[0287] Production Example 3: Production of Resin (B2-2) The atmosphere in a 1 L flask equipped with a reflux condenser, a dropping funnel and a stirrer was replaced with nitrogen, 141 parts of ethyl lactate and 178 parts of propylene glycol monomethyl ether acetate were added, and the mixture was heated to 85°C with stirring. Next, 38 parts of acrylic acid and 3,4-epoxytricyclo[5.2.1.0 2,6 ]decan-8-yl acrylate and 3,4-epoxytricyclo[5.2.1.0 2,6] A mixed solution of 25 parts of a mixture of decan-9-yl acrylate, 137 parts of N-cyclohexylmaleimide, 50 parts of 2-hydroxyethyl methacrylate, and 338 parts of propylene glycol monomethyl ether acetate was added dropwise over 5 hours. Meanwhile, a solution of 5 parts of 2,2-azobisisobutyronitrile dissolved in 88 parts of propylene glycol monomethyl ether acetate was added dropwise over 6 hours. After the dropwise addition was completed, the mixture was kept at 85°C for 4 hours and then cooled to room temperature to obtain a copolymer (hereinafter referred to as "resin (B2-2)") solution (solid content 25.6%). The viscosity of the resin (B2-2) solution at 23°C measured with a Brookfield viscometer was 23 mPa·s. The acid value (solid content equivalent) of resin (B2-2) was 111 mgKOH / g, its weight average molecular weight (Mw) was 8,000, and its polydispersity (Mw / Mn) was 2.1.

[0288] The weight average molecular weight (Mw) and number average molecular weight (Mn) of the resin were measured by GPC under the following conditions. Equipment: K2479 (Shimadzu Corporation) Column: SHIMADZU Shim-pack GPC-80M Column temperature: 40°C Solvent: THF (tetrahydrofuran) Test solution concentration: 25mg / mL (solvent: THF) Flow rate; 1.0mL / min Detector: RI Calibration standard material; TSK STANDARD POLYSTYRENE F-40, F-4, F-288, A-2500, A-500 (manufactured by Tosoh Corporation)

[0289] Production Example 4: Production of a compound represented by formula (1a-1) In the same manner as described in Example 7 of JP2018-127596A, a compound represented by the following formula (1a-1) was produced as colorant (A).

[0290] [ka]

[0291] Production Example 5: Production of a compound represented by formula (2a-1) A compound represented by the following formula (2a-1) was produced as colorant (A) in the same manner as in Synthesis Example 19 of JP2015-38201A.

[0292] [ka]

[0293] Example 1: Preparation of composition (1) 7 parts of compound (1a-1), 3 parts of dispersant (DISPERBYK (registered trademark)-2050 (manufactured by BYK Japan)), 3 parts of resin (B1-1) (solid content equivalent), 81 parts of propylene glycol monomethyl ether acetate, 6 parts of diacetone alcohol, and 300 parts of 0.2 mm zirconia beads were mixed, and the resulting mixture was shaken for 3 hours using a paint conditioner (manufactured by LAU). Then, the zirconia beads were removed by filtration to obtain composition (1). The content of colorant (A) (compound (1a-1)) in the composition (1) was 53.8% based on the total amount of solids. The content of the solvent (E) in the composition (1) was 87% based on the total amount of the composition.

[0294] Example 2: Preparation of composition (2) 7 parts of compound (1a-1), 3 parts of dispersant (DISPERBYK (registered trademark)-2050 (manufactured by BYK Japan)), 1 part of resin (B1-1) (solid content equivalent), 2 parts of resin (B2-1) (solid content equivalent), 81 parts of propylene glycol monomethyl ether acetate, 6 parts of diacetone alcohol and 300 parts of 0.2 mm zirconia beads were mixed, and the resulting mixture was shaken for 3 hours using a paint conditioner (manufactured by LAU). Then, the zirconia beads were removed by filtration to obtain composition (2). The content of colorant (A) (compound (1a-1)) in the composition (2) was 53.8% based on the total amount of solids. The content of the solvent (E) in the composition (2) was 87% based on the total amount of the composition.

[0295] Comparative Example 1: Preparation of composition (3) 7 parts of compound (1a-1), 3 parts of dispersant (DISPERBYK (registered trademark)-2050 (manufactured by BYK Japan)), 3 parts of resin (B2-1) (solid content equivalent), 81 parts of propylene glycol monomethyl ether acetate, 6 parts of diacetone alcohol, and 300 parts of 0.2 mm zirconia beads were mixed and shaken for 3 hours using a paint conditioner (manufactured by LAU). Then, the zirconia beads were removed by filtration to obtain composition (3). The content of colorant (A) (compound (1a-1)) in the solid content of the composition (3) was 53.8% based on the total amount of the solid content. The content of the solvent (E) in the composition (3) was 87% based on the total amount of the composition.

[0296] Example 3: Preparation of composition (4) 5 parts of compound (2a-1), 4 parts of dispersant (BYKLPN-21324 (manufactured by BYK Japan)), 4 parts of resin (B1-1) (solid content equivalent), 87 parts of propylene glycol monomethyl ether acetate, and 300 parts of 0.2 mm zirconia beads were mixed, and the resulting mixture was shaken for 3 hours using a paint conditioner (manufactured by LAU). Then, the zirconia beads were removed by filtration to obtain composition (4). The content of colorant (A) (compound (2a-1)) in the composition (4) was 38.5% based on the total amount of solids. The content of the solvent (E) in the composition (4) was 87% based on the total amount of the composition.

[0297] Comparative Example 2: Preparation of Composition (5) 5 parts of compound (2a-1), 4 parts of dispersant (BYKLPN-21324 (manufactured by BYK Japan)), 4 parts of resin (B2-1) (solid content equivalent), 87 parts of propylene glycol monomethyl ether acetate, and 300 parts of 0.2 mm zirconia beads were mixed and shaken for 3 hours using a paint conditioner (manufactured by LAU). The zirconia beads were then removed by filtration to obtain composition (5). The content of colorant (A) (compound (2a-1)) in the composition (5) was 38.5% based on the total amount of solids. The content of the solvent (E) in the composition (5) was 87% based on the total amount of the composition.

[0298] <Evaluation of Compositions (1) to (5)> Colored curable compositions (1) to (6) were produced using the compositions (1) to (5) obtained in Examples 1 to 3 and Comparative Examples 1 and 2 as described below, and the viscosity increase rates of the obtained colored curable compositions were measured.

[0299] (1-1) Production of Colored Curable Compositions (1) to (3) Colored curable compositions (1) to (3) were obtained by mixing 281 parts of any one of the compositions (1) to (3), 50 parts of resin (B2-2) (based on solid content), 50 parts of dipentaerythritol hexaacrylate (manufactured by Nippon Kayaku Co., Ltd., polymerizable compound (C)), 50 parts of N-benzoyloxy-1-(4-phenylsulfanylphenyl)octan-1-one-2-imine (manufactured by BASF, "Irgacure (registered trademark) OXE01", polymerization initiator (D)), 3 parts of propylene glycol monomethyl ether acetate (solvent (E)), and 0.1 part of polyether-modified silicone oil (manufactured by Dow Corning Toray Co., Ltd., "Toray Silicone SH8400", leveling agent).

[0300] (1-2) Production of Colored Curable Compositions (4) and (5) Colored curable compositions (4) and (5) were obtained by mixing 424 parts of either composition (4) or (5), 50 parts of resin (B2-2) (based on solid content), 50 parts of dipentaerythritol hexaacrylate (manufactured by Nippon Kayaku Co., Ltd., polymerizable compound (C)), 3 parts of N-benzoyloxy-1-(4-phenylsulfanylphenyl)octan-1-one-2-imine (manufactured by BASF, "Irgacure (registered trademark) OXE01", polymerization initiator (D)), 430 parts of propylene glycol monomethyl ether acetate (solvent (E)), and 0.1 parts of polyether-modified silicone oil (manufactured by Dow Corning Toray Co., Ltd., "Toray Silicone SH8400", leveling agent).

[0301] (1-3) Production of Colored Curable Composition (6) 424 parts of the composition (5), 50 parts of the resin (B2-2) (based on solid content), 50 parts of dipentaerythritol hexaacrylate (manufactured by Nippon Kayaku Co., Ltd., polymerizable compound (C)), 50 parts of N-benzoyloxy-1-(4-phenylsulfanylphenyl)octan-1-one-2-imine (manufactured by BASF, "Irgacure (registered trademark) OXE01", polymerization initiator (D)), 3 parts of propylene glycol monomethyl ether acetate (solvent (E)), 70 parts of 3-methoxybutanol (solvent (E)), and 0.1 parts of polyether-modified silicone oil (manufactured by Dow Corning Toray Co., Ltd., "Toray Silicone SH8400", leveling agent) were mixed to obtain a colored curable composition (6).

[0302] (2) Measurement of viscosity increase rate The viscosity (=initial viscosity) of the colored curable compositions (1) to (6) immediately after production was measured using a cone-plate type (E type) viscometer ("Viscometer TV-25" manufactured by Toki Sangyo Co., Ltd.) at a rotation speed of 100 rpm and a measurement temperature of 23° C. The results are shown in Table 1.

[0303] The viscosity of each of the colored curable compositions (1) to (6) after storage at 40° C. for 7 days (=viscosity after storage) was measured in the same manner as above, and the viscosity was calculated based on the following formula: Viscosity increase rate (%) = 100 × viscosity after storage (mPa s) / initial viscosity (mPa s) The viscosity increase rate was calculated by the following formula: The results are shown in Table 1.

[0304] [Table 1]

[0305] As shown in Table 1, in the colored curable compositions (1) to (3) obtained using the compound (1a-1) as the colorant (A), the viscosity increase rates (101% and 102%) of the colored curable compositions (1) and (2) obtained from the compositions (1) and (2) (Examples 1 and 2) containing the resin (B-1) were lower than the viscosity increase rate (111%) of the colored curable composition (3) obtained from the composition (3) (Comparative Example 1) not containing the resin (B-1).

[0306] Furthermore, as shown in Table 1, in the colored curable compositions (4) to (6) obtained using the compound (2a-1) as the colorant (A), the viscosity increase rate (100%) of the colored curable composition (4) obtained from the composition (4) (Example 3) containing the resin (B-1) was lower than the viscosity increase rates (104% and 103%) of the colored curable compositions (5) and (6) obtained from the composition (5) (Comparative Example 2) not containing the resin (B-1). [Industrial Applicability]

[0307] By preparing the composition of the present invention in advance and then preparing a colored curable composition using the composition of the present invention, it is possible to suppress thickening of the colored curable composition. Such a colored curable composition is useful for producing, for example, a color filter, etc.

Claims

1. A composition comprising a colorant (A), a resin (B) and a solvent (E), but not containing a polymerizable compound (C) and a polymerization initiator (D), The colorant (A) is represented by formula (1a-1): 【Chemistry 1】 The compound represented by the formula: The resin (B) is represented by the formula (1b): 【Chemistry 2】 [In formula (1b), R １Ｂ represents a methyl group, R ２Ｂ ~R ４Ｂ represents a methoxy group, n represents 3, and * indicates the bond position. a structural unit (b1-1) represented by the formula: A composition, wherein the content of the colorant (A) is 35 to 70% by weight based on the total amount of solids in the composition.

2. 2. The composition according to claim 1, wherein the content of the colorant (A) is 40 to 70% by weight based on the total amount of solids in the composition.

3. 3. The composition according to claim 1, wherein the resin (B1) has a weight average molecular weight of 1,000 to 50,000.

4. The composition according to any one of claims 1 to 3, wherein the content of the resin (B1) is 10 to 100 parts by weight based on 100 parts by weight of the colorant (A).

5. The composition according to any one of claims 1 to 3, wherein the content of the resin (B1) is 10 to 60 parts by weight based on 100 parts by weight of the colorant (A).

6. A method for producing a colored curable composition by mixing the composition according to any one of claims 1 to 5, a polymerizable compound (C), and a polymerization initiator (D).

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