Curable composition, cured product thereof, and curing method therefor

Patent metadata

Field	Value
Publication number	US-11036135-B2
Application number	US-201716463180-A
Country	US
Kind code	B2
Filing date	Nov 21, 2017
Priority date	Nov 25, 2016
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

Provided are: a curable composition having excellent photolithographic properties and resin elution properties; a cured product of the curable composition; and a curing method of the curable composition. The curable composition is characterized by including: (A) at least one selected from the group consisting of a water-soluble polyfunctional (meth)acrylates and water-soluble polyfunctional (meth)acrylamides; and (B) a photosensitive group-containing water-soluble polymer. The water-soluble polyfunctional (meth)acrylates are preferably compounds represented by Formula (I) below, and the water-soluble polyfunctional (meth)acrylamides are preferably compounds represented by Formula (II) below. In Formulae (I) and (II), R1 represents a hydrogen atom, a methyl group, or a halogen atom; X1 represents an alkylene group having 1 to 6 carbon atoms that is optionally substituted with a hydroxy group; A represents an n-valent organic group; R11 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; m represents a number of 1 to 30; n represents a number of 2 to 12; and t represents a number of 2 to 12.

First claim

The invention claimed is:

1. A curable composition comprising:
(A) at least one selected from the group consisting of water-soluble polyfunctional (meth)acrylamides, wherein the water-soluble polyfunctional (meth)acrylamides are represented by the following Formula (II); and
(B) a photosensitive group-containing water-soluble polymer, wherein the water-soluble polymer comprises a structural unit represented b the following Formula (III) or (IV);

wherein in Formula (II):
R 1 represents a hydrogen atom, a methyl group, or a halogen atom;
R 11 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms;
A represents an n-valent organic group; and
t represents a number of 2 to 12;

wherein in Formulae (III) and (IV):
Y represents a divalent organic group; and
Q is a vinyl group, an allyl group, a styryl group, a cinnamyl group, a cinnamoyl group, a cinnamylidene group, a cinnamylidenecetyl group, a chalcone group, a coumarin group, an isocoumarin group, a 2,5-dimethoxystilbene group, a maleimide group, an α-phenylmaleimide group, a 2-pyrone group, an azide group, a thymine group, a quinone group, a maleimide group, a uracil group, a pyrimidine group, a stilbazolium group, a styrylpyridinium group a styrylquinolium group, an epoxy group, an oxetane group, a vinyl ether group, an allyl ether group, an acetylacetone structure, or a β-diketone structure.

2. The curable composition according to claim 1 , wherein the (B) photosensitive group-containing water-soluble polymer is a water-soluble polymer comprising a structural unit represented by the following Formula (V):

where An q− represents a q-valent anion; q represents 1 or 2; and p represents a coefficient that maintains a neutral charge.

3. The curable composition according to claim 2 , further comprising a radical initiator.

4. The curable composition according to claim 1 , wherein the (B) photosensitive group-containing water-soluble polymer is a polyvinyl alcohol derivative obtained by introducing a (meth)acrylate or (meth)acrylamide structure to a polyvinyl alcohol.

5. The curable composition according to claim 4 , further comprising a radical initiator.

6. The curable composition according to claim 1 , further comprising a radical initiator.

7. The curable composition of claim 1 , wherein a mass ratio of component (A) to component (B) ((A)/(B)) is from 5:95 to 50:50.

8. The curable composition of claim 1 , wherein a mass ratio of component (A) to component (B) ((A)/(B)) is from 5:95 to 30:70.

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

10. A curing method comprising curing the curable composition according to claim 1 with an active energy ray.

Assignees

• Adeka Corp

Inventors

• Hara Kenji
• Irisawa Masatomi

Classifications

• C08F2/44

  Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers · CPC title

• C08F2/50

  with sensitising agents · CPC title

• G03F7/027

  Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds (G03F7/075 takes precedence) · CPC title

• C09D4/06 Primary

  {Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond} in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00 · CPC title

• G03F7/0388

  with ethylenic or acetylenic bands in the side chains of the photopolymer · CPC title