Claims
- 1. A photopolymerizable composition comprising, (1) a photopolymerization initiator or a photopolymerization initiator system, (2) an addition polymerizable monomer having an ethylenically unsaturated double bond, and (3) a resin obtained by reacting; a copolymer comprising at least a repeating unit represented by formula (I): ##STR5## wherein Ar.sup.1 represents a phenyl group or a phenyl group substituted with an alkyl group having from 1 to 4 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, an aryl group having from 6 to 10 carbon atoms, an aralkyl group having from 8 to 12 carbon atoms, a halogen atom, or a combination of two or more of these substituents; and x represents a molar content of the repeating unit in the copolymer, ranging from 0.85 to 0.55,
- and a repeating unit represented by formula (II): ##STR6## wherein y represents a molar content of the repeating unit in the copolymer, ranging from 0.15 to 0.45, and wherein the copolymer has a number average molecular weight of from 500 to 30,000,
- with a primary amine represented by formula (III):
- Ar.sup.2 --R--NH.sub.2 (III)
- wherein R represents a straight-chain or branched alkylene group having from 1 to 6 carbon atoms; and Ar.sup.2 represents an aryl group or an aryl group substituted with an alkyl group having from 1 to 4 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, an aryl group having from 6 to 10 carbon atoms, an aralkyl group having from 8 to 12 carbon atoms, a halogen atom, or a combination of two or more of these substituents,
- at a ratio of from 0.1 to 1.0 molar equivalent of the primary amine to the acid anhydride group of the copolymer.
- 2. A photopolymerizable composition as claimed in claim 1, wherein said copolymer is a styrene-maleic anhydride copolymer.
- 3. A photopolymerizable composition as claimed in claim 2, wherein said molar content x is from 0.80 to 0.55 and y is from 0.20 to 0.45.
- 4. A photopolymerizable composition as claimed in claim 1, wherein said primary amine is benzylamine or phenethylamine.
- 5. A photopolymerizable composition as claimed in claim 4, wherein said molar content x is from 0.80 to 0.55 and y is from 0.20 to 0.45.
- 6. A photopolymerizable composition as claimed in claim 1, wherein said molar content x is from 0.80 to 0.55 and y is from 0.20 to 0.45.
- 7. A photopolymerizable composition as claimed in claim 1, wherein the content of resin is from 20 to 90% by weight, that of the addition polymerizable monomers is from 10 to 80% by weight, and that of the photopolymerizable initiator or initiator system is 0.1 to 20% by weight, based on the total solids content of the photopolymerizable composition.
Priority Claims (1)
Number |
Date |
Country |
Kind |
5-202272 |
Aug 1993 |
JPX |
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Parent Case Info
This is a divisional of application Ser. No. 08/288,615 filed Aug. 10, 1994, issued as U.S. Pat. No. 5,514,502.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3556793 |
Field et al. |
Jan 1971 |
|
4855215 |
Nakano et al. |
Aug 1989 |
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4987054 |
Sondergeld |
Jan 1991 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
288615 |
Aug 1994 |
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