Pigment multimer, coloring composition, cured film, color filter, method for manufacturing color filter, solid-state imaging element, and image display device

Patent metadata

Field	Value
Publication number	US-9605101-B2
Application number	US-201514978898-A
Country	US
Kind code	B2
Filing date	Dec 22, 2015
Priority date	Jul 5, 2013
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

Provided is a pigment multimer whereby a pattern can be appropriately formed during formation of a pattern. Further, provided are a coloring composition using the pigment multimer; and a cured film, a color filter, a method for manufacturing a color filter, a solid-state imaging element, and an image display device, each of which uses the coloring composition. The pigment multimer (A) has a non-nucleophilic counter anion.

First claim

What is claimed is:

1. A colorant multimer (A) having a non-nucleophilic counter anion,
wherein the non-nucleophilic counter anion is an imide anion represented by the following formula (AN-1):
X 1 —Y 1 —N − —Y 2 —X 2   (AN-1)

wherein X 1 and X 2 each independently represents a halogen atom, an alkyl group, or an aryl group; X 1 and X 2 may be bonded to each other to form a ring; at least one of X 1 and X 2 is a fluorine atom-containing alkyl group having 1 to 10 carbon atoms; and Y 1 and Y 2 each independently represents —SO 2 — or —CO—,
and further wherein the colorant multimer (A) having a non-nucleophilic counter anion has a partial structure derived from a colorant selected from the group consisting of a dipyrromethene colorant and a xanthene colorant, and
wherein the colorant multimer achieves a combination of high heat resistance and reduced color migration.

2. The colorant multimer according to claim 1 , wherein the colorant multimer having a non-nucleophilic counter anion has a partial structure derived from a xanthene colorant.

3. The colorant multimer according to claim 1 , wherein the colorant multimer has the following repeating unit:

wherein in Formula (A), X 1 represents a group capable of forming a main chain, L 1 represents a single bond or a divalent linking group; and DyeI represents a colorant structure having a cationic moiety;
DyeIII L 3 m   Formula (C)

wherein in Formula (C), L 3 represents a single bond or a divalent linking group; DyeIII represents a colorant pigment-structure having a cationic moiety; and m represents 0 or 1;
( L 4 DyeIV) n   Formula (D)

wherein in Formula (D), L 4 represents an n-valent linking group; n represents an integer of 2 to 20; and DyeIV represents a colorant structure having a cationic moiety.

4. The colorant multimer according to claim 1 , wherein the colorant multimer has a polymerizable group.

5. The colorant multimer according to claim 1 , which has a polymerizable group in an amount of 0.1 mmol to 2.0 mmol, with respect to 1 g of the colorant multimer (A).

6. The colorant multimer according to claim 1 , wherein the colorant multimer has a group containing an ethylenically unsaturated bond.

7. The colorant multimer according to claim 1 , wherein the colorant multimer has a repeating unit having an acid group.

8. A coloring composition comprising:
the colorant multimer (A) according to claim 1 ;
a curable compound (B);
and a colorant (C).

9. The coloring composition according to claim 8 , further comprising a photopolymerization initiator (D).

10. The coloring composition according to claim 9 , wherein the photopolymerization initiator (D) is an oxime compound.

11. The coloring composition according to claim 8 , which is used for forming a colored layer of a color filter.

12. A cured film formed by curing the coloring composition according to claim 8 .

13. A color filter having the cured film according to claim 12 .

14. A solid-state imaging element comprising the color filter according to claim 13 .

15. An image display device comprising the color filter according to claim 13 .

16. A method for manufacturing a color filter, comprising:
applying the coloring composition according to claim 8 onto a support to form a coloring composition layer;
patternwise-exposing the coloring composition layer; and
removing an unexposed area by development to form a colored pattern.

17. A method for manufacturing a color filter, comprising:
applying the coloring composition according to claim 8 onto a support to form a coloring composition layer, and curing the coloring composition layer to form a colored layer;
forming a photoresist layer on the colored layer;
patterning the photoresist layer by exposure and development to obtain a resist pattern; and
dry-etching the colored layer using a resist pattern as an etching mask.

18. The colorant multimer according to claim 1 , wherein the colorant multimer has a partial structure derived from a xanthene compound represented by the following General Formula (J):

wherein in General Formula (J), R 81 , R 82 , R 83 , and R 84 each independently represents a hydrogen atom or a monovalent substituent; each R 85 independently represents a monovalent substituent; m represents an integer of 0 to 5; and X − represents a non-nucleophilic counter anion.

Assignees

• Fujifilm Corp

Inventors

• Kaneko Yuushi
• Watanabe Tetsuya
• SAMEJIMA Suguru
• Ito Junichi
• Muro Naotsugu
• Taguchi Yoshinori
• Oota Kazuya

Classifications

• C08F12/22 Primary

  Oxygen · CPC title

• C08F224/00 Primary

  Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a heterocyclic ring containing oxygen (cyclic esters of polyfunctional acids C08F218/00; cyclic anhydrides of unsaturated acids C08F220/00, C08F222/00) · CPC title

• C08F8/00

  Chemical modification by after-treatment (graft polymers, block polymers, crosslinking with unsaturated monomers or with polymers C08F251/00 - C08F299/00; of conjugated diene rubbers C08C) · CPC title

• C09B11/12

  without any OH group bound to an aryl nucleus · CPC title

• C09B23/04

  one >CH- group, e.g. cyanines, isocyanines, pseudocyanines · CPC title