Coloring composition, method for producing coloring composition, color filter, pattern forming method, method for manufacturing color filter, solid-state imaging device, and image display device

Patent metadata

Field	Value
Publication number	US-10241247-B2
Application number	US-201715614742-A
Country	US
Kind code	B2
Filing date	Jun 6, 2017
Priority date	Dec 25, 2014
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A coloring composition includes Color Index Pigment Red 264, a graft resin having an acid group, a photopolymerizable compound, and a photopolymerization initiator.

First claim

What is claimed is:

1. A coloring composition comprising:
Color Index Pigment Red 264;
a graft resin having an acid group;
a photopolymerizable compound; and
a photopolymerization initiator.

2. The coloring composition according to claim 1 , wherein the graft resin having an acid group has a base value of 50 mgKOH/g or less.

3. The coloring composition according to claim 1 , wherein the graft resin having an acid group has an acid value of 5 to 150 mgKOH/g.

4. The coloring composition according to claim 1 , further comprising a pigment derivative having a basic group.

5. The coloring composition according to claim 4 , wherein the pigment derivative is a compound represented by the following General Formula (P),
A-B C-D-E) t   (P)

in General Formula (P), A represents a group represented by the following General Formula (PA-1) or (PA-2),
B represents a single bond or a (t+1)-valent linking group,
C represents a single bond, —NR—, —CO—, —CO 2 —, —SO 2 —, —O—, —S—, or a group formed of a combination thereof, and R represents a hydrogen atom, an alkyl group, or an aryl group,
D represents a single bond, an alkylene group, or an arylene group,
E represents —N(Rpa)(Rpb),
Rpa and Rpb each independently represent an alkyl group or an aryl group, and
t represents an integer of 1 to 5;

Rp 1 represents an alkyl group or an aryl group,
Rp 2 represents a hydrogen atom, a halogen atom, an alkyl group, or a hydroxyl group,
Rp 3 represents a single bond, —NR—, —CO—, —CO 2 —, —SO 2 —, —O—, —S—, or a group formed of a combination thereof, and R represents a hydrogen atom, an alkyl group, or an aryl group,
s represents an integer of 1 to 4, and in a case where s is 2 or more, a plurality of Rp 2 's may be the same or different from each other, and
* represents a linking moiety to B.

6. The coloring composition according to claim 5 , further comprising Color Index Pigment Yellow 139.

7. The coloring composition according to claim 5 , wherein the graft resin having an acid group is a (meth)acrylic resin.

8. The coloring composition according to claim 5 , wherein the graft resin having an acid group has a carboxyl group.

9. The coloring composition according to claim 1 , further comprising Color Index Pigment Yellow 139.

10. The coloring composition according to claim 9 , wherein the mass ratio of Color Index Pigment Red 264 to Color Index Pigment Yellow 139 is 55:45 to 75:25.

11. The coloring composition according to claim 9 , wherein the graft resin having an acid group is a (meth)acrylic resin.

12. The coloring composition according to claim 9 , wherein the graft resin having an acid group has a carboxyl group.

13. The coloring composition according to claim 1 , wherein the graft resin having an acid group is a (meth)acrylic resin.

14. The coloring composition according to claim 1 , wherein the graft resin having an acid group has a carboxyl group.

15. A method for producing the coloring composition according to claim 1 , comprising:
dispersing a colorant including Color Index Pigment Red 264 in the presence of a graft resin having an acid group.

16. A color filter formed of the coloring composition according to claim 1 .

17. A solid-state imaging element comprising the color filter according to claim 16 .

18. An image display device comprising the color filter according to claim 16 .

19. A pattern forming method comprising:
forming a coloring composition layer on a support applying the coloring composition according to claim 1 ,
exposing the coloring composition layer in a pattern shape; and
removing the unexposed area by development to form a colored pattern.

20. A method for manufacturing a color filter, comprising the pattern forming method according to claim 19 .

Assignees

• Fujifilm Corp

Inventors

• Taguchi Yoshinori
• Kamimura Tetsuya
• Yoshii Akiko

Classifications

• C08G18/284

  Compounds containing ester groups, e.g. oxyalkylated monocarboxylic acids · CPC title

• G03F7/105

  having substances, e.g. indicators, for forming visible images · CPC title

• G02B5/223 Primary

  containing organic substances, e.g. dyes, inks or pigments · CPC title

• C08G18/329

  containing aromatic groups · CPC title

• C09B67/0034

  Mixtures of two or more pigments or dyes of the same type · CPC title