Curable composition, cured product, color filter, solid-state imaging element, and image display device

Patent metadata

Field	Value
Publication number	US-2022010049-A1
Application number	US-202117482422-A
Country	US
Kind code	A1
Filing date	Sep 23, 2021
Priority date	Mar 27, 2019
Publication date	Jan 13, 2022
Grant date	—

Abstract

Provided are a curable composition including, a block copolymer including a block A which has a constitutional unit having an ethylenically unsaturated group in a side chain of a polymer compound, a pigment, and, a photopolymerization initiator, in which a content of a polymerizable compound is 15 mass % or less with respect to a total solid content of the curable composition; a cured product of the curable composition; a color filter including the cured product; and a solid-state imaging element or an image display device including the color filter.

First claim

What is claimed is:

1 . A curable composition comprising:
a block copolymer including a block A which has a constitutional unit having an ethylenically unsaturated group in a side chain; a pigment; and a photopolymerization initiator, wherein a content of a polymerizable compound is 15 mass % or less with respect to a total solid content of the curable composition.

2 . The curable composition according to claim 1 ,
wherein the pigment is a pigment having a maximal absorption wavelength in a wavelength range of 400 nm to 2,000 nm.

3 . The curable composition according to claim 1 ,
wherein the pigment is a pigment having a maximal absorption wavelength in a wavelength range of 400 nm to 700 nm.

4 . The curable composition according to claim 1 ,
wherein the pigment includes a red pigment.

5 . The curable composition according to claim 1 ,
wherein a content of the block A is 40 mass % to 95 mass % with respect to a total mass of the block copolymer.

6 . The curable composition according to claim 1 ,
wherein the constitutional unit having an ethylenically unsaturated group in a side chain in the block A includes a constitutional unit represented by Formula (1),

in Formula (1), R 1 represents a hydrogen atom, a halogen atom, or an alkyl group, X 1 and X 2 each independently represent a single bond or a divalent linking group, L 1 represents a polyether chain, a polyester chain, a polyamide chain, a polyimide chain, a polyimine chain, a polyurethane chain, or a resin chain in which two or more of these resin chains are combined, and Z 1 represents an ethylenically unsaturated group.

7 . The curable composition according to claim 6 ,
wherein a content of the constitutional unit represented by Formula (1) is 0.1 mass % to 50 mass % with respect to a total mass of the block A.

8 . The curable composition according to claim 1 ,
wherein the ethylenically unsaturated group in the constitutional unit having an ethylenically unsaturated group in a side chain is an acryloxy group.

9 . The curable composition according to claim 1 ,
wherein the block copolymer further includes a block B which has a constitutional unit having a steric repulsive group in a side chain.

10 . The curable composition according to claim 9 ,
wherein the block B includes an acrylic resin chain.

11 . The curable composition according to claim 1 ,
wherein a weight-average molecular weight of the block copolymer is 8,000 to 30,000.

12 . The curable composition according to claim 1 ,
wherein an acid value of the block copolymer is 20 mgKOH/g to 200 mgKOH/g.

13 . The curable composition according to claim 1 ,
wherein an ethylenically unsaturated bonding value of the block copolymer is 0.1 mmol/g to 1.0 mmol/g.

14 . A cured product obtained by curing the curable composition according to claim 1 .

15 . A color filter comprising:
the cured product according to claim 14 .

16 . A solid-state imaging element comprising:
the color filter according to claim 15 .

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

Assignees

• Fujifilm Corp

Inventors

• FUKAMI Yutaro
• Ito Junichi
• Kaneko Yushi
• Koizumi Hiromu
• Oota Kazuya

Classifications

• H10F39/12

  Image sensors · CPC title

• C09J133/068

  containing glycidyl groups · CPC title

• C08F2/50

  with sensitising agents · CPC title

• C08F2/48

  by ultraviolet or visible light · CPC title

• C08F290/126

  Polymers of unsaturated carboxylic acids or derivatives thereof · CPC title