Dispersion composition, curable composition, light-shielding film, color filter, solid-state imaging device, image display device, resin, and method for manufacturing cured film

Patent metadata

Field	Value
Publication number	US-2018355088-A1
Application number	US-201816107369-A
Country	US
Kind code	A1
Filing date	Aug 21, 2018
Priority date	Feb 29, 2016
Publication date	Dec 13, 2018
Grant date	—

Abstract

The dispersion composition of the present invention contains a colorant and a resin, in which the resin contains a structural unit A having a polymer chain and a structural unit B having an acid group, and the polymer chain contains 2 or more structural units GF, and the structural unit GF is selected from the group consisting of a structural unit composed of an oxyalkylene group and a structural unit composed of an oxyalkylene carbonyl group.

First claim

What is claimed is:

1 . A dispersion composition comprising:
a colorant; and a resin, wherein the resin contains a structural unit A having a polymer chain and a structural unit B having an acid group, the polymer chain contains two or more structural units GF, and each of the structural units GF is selected from the group consisting of a structural unit composed of an oxyalkylene group and a structural unit composed of an oxyalkylene carbonyl group.

2 . The dispersion composition according to claim 1 ,
wherein a polymer forming the polymer chain has a crystallization temperature of less than 20.0° C.

3 . The dispersion composition according to claim 1 ,
wherein the polymer chain contains a structural unit L 1 represented by Formula (1), and a structural unit L 2 selected from the group consisting of a structural unit represented by Formula (2) and a structural unit represented by Formula (3),

in Formula (1), R 1 represents an alkylene group, and n represents 0 or 1,
in Formula (2), R 2 represents an alkylene group different from R 1 , and m represents 0 or 1, and
in Formula (3), R 3 represents an alkyl group.

4 . The dispersion composition according to claim 3 ,
wherein the structural unit A is represented by Formula (A), and the structural unit B is represented by Formula (B),

in Formula (A), R 4 represents a hydrogen atom or an alkyl group, and X A represents a single bond or a divalent linking group,
p and q each represent an integer of 1 or more,
Z A represents a hydrogen atom or a monovalent organic group, and
L A1 and L A2 represent the structural unit L 1 and the structural unit L 2 , respectively, and
in Formula (B), R 4 represents a hydrogen atom or an alkyl group, and X B represents a single bond or a divalent linking group,
Z B represents a hydrogen atom, or an acid group selected from the group consisting of a carboxylic acid group, a phosphoric acid group, a sulfonic acid group, a phenolic hydroxy group, and a thiol group, or a derivative group thereof, and,
in a case where Z B is a hydrogen atom, X B represents a single bond.

5 . The dispersion composition according to claim 4 ,
wherein a sum of p and q in Formula (A) is greater than 5 and less than 120.

6 . The dispersion composition according to claim 3 ,
wherein a mass ratio of the structural unit L 1 to the structural unit L 2 is greater than 50/50 and less than 95/5.

7 . The dispersion composition according to claim 3 ,
wherein the structural unit L 1 and the structural unit L 2 are each a structural unit obtained by ring-opening polymerization of a cyclic compound.

8 . The dispersion composition according to claim 7 ,
wherein the cyclic compound is a lactone compound.

9 . The dispersion composition according to claim 8 ,
wherein the lactone compound is at least one selected from the group consisting of β-propiolactone, β-butyrolactone, β-valerolactone, γ-butyrolactone, γ-valerolactone, γ-caprylolactone, δ-valerolactone, β-methyl-δ-valerolactone, δ-stearolactone, ε-caprolactone, 2-methyl-ε-caprolactone, 4-methyl-ε-caprolactone, ε-caprylolactone, and ε-palmitolactone.

10 . The dispersion composition according to claim 1 ,
wherein the structural unit A has a formula weight of 500 to 30,000.

11 . The dispersion composition according to claim 1 ,
wherein a content of the structural unit A is 10% to 90% by mass with respect to the entire mass of the resin, and a content of the structural unit B is 10% to 90% by mass with respect to the entire mass of the resin.

12 . The dispersion composition according to claim 1 ,
wherein the resin has a weight average molecular weight of 1,000 to 100,000.

13 . The dispersion composition according to claim 1 ,
wherein the resin has an acid value of 35 to 250 mgKOH/g.

14 . The dispersion composition according to claim 1 , further comprising a solvent.

15 . The dispersion composition according to claim 14 ,
wherein the solvent includes two or more solvents.

16 . A curable composition comprising:
the dispersion composition according to claim 1 ; a polymerizable compound; and a polymerization initiator.

17 . The curable composition according to claim 16 , further comprising an alkali-soluble resin.

18 . The curable composition according to claim 16 ,
wherein the colorant contains a black pigment.

19 . The curable composition according to claim 18 ,
wherein the black pigment is titanium oxynitride.

20 . The curable composition according to claim 18 ,
wherein the black pigment is titanium nitride.

21 . The curable composition according to claim 18 ,
wherein the black pigment is at least one selected from the group consisting of niobium oxynitride and niobium nitride.

22 . A method for manufacturing a cured film, comprising:
a step of coating the curable composition according to claim 16 onto a base material to form a curable composition layer; a step of irradiating the curable composition layer with actinic rays or radiation to perform exposure; and a step of developing the curable composition after the exposure to form a cured film.

23 . A color filter comprising a cured film that is obtained by curing the curable composition according to claim 16 .

24 . A light-shielding film that is obtained by curing the curable composition according to claim 18 .

25 . A solid-state imaging device comprising a cured film that is obtained by curing the curable composition according to claim 16 .

26 . An image display device comprising a cured film that is obtained by curing the curable composition according to claim 16 .

27 . A resin comprising:
a structural unit A having a polymer chain; and a structural unit B having an acid group, wherein the polymer chain contains two or more structural units GF, and each of the structural units GF is selected from the group consisting of a structural unit composed of an oxyalkylene group and a structural unit composed of an oxyalkylene carbonyl group.

28 . The resin according to claim 27 ,
wherein a polymer forming the polymer chain has a crystallization temperature of less than 20.0° C.

29 . The resin according to claim 27 ,
wherein the polymer chain contains a structural unit L 1 represented by Formula (1), and a structural unit L 2 selected from the group consisting of a structural unit represented by Formula (2) and a structural unit represented by Formula (3),

in Formula (1), R 1 represents an alkylene group, and n represents 0 or 1,
in Formula (2), R 2 represents an alkylene group different from R 1 , and m represents 0 or 1, and
in Formula (3), R 3 represents an alkyl group.

30 . The resin according to claim 29 ,
wherein the structural unit A is represented by Formula (A) and the structural unit B is represented by Formula (B),

Assignees

• Fujifilm Corp

Inventors

• OGAWA Michihiro
• FUKAMI Yutaro

Classifications

• C08G63/08

  Lactones or lactides · CPC title

• C08L33/04 Primary

  Homopolymers or copolymers of esters {(C08L43/04 takes precedence)} · CPC title

• C09D133/04

  Homopolymers or copolymers of esters {(C09D143/04 takes precedence)} · CPC title

• C08G63/912

  derived from hydroxycarboxylic acids · CPC title

• C09D5/32

  Radiation-absorbing paints {(protection against X-, gamma- or corpuscular radiation G21F)} · CPC title