EP0164270A2
Expired / Lapsed
EP
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Photo-polymerizable compositon and printing plate prepared therefrom
Assignee: Nippon Paint Co Ltd
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Filing: 1985-06-07
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Granted: —
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Expires: 2005-06-07
Abstract
Abstract A water-developable photo-polymerizable composition is disclosed, together with a printing plate prepared therefrom. The photo-polymerizable composition comprises a copolymer of an alpha , beta -ethylenically-unsaturated carboxylic acid and a vinyl monomer, a vinyl compound having a secondary or tertiary nitrogen atom, an ethylenically-unsaturated monomeric compound, and a photosensibilizer. Printing plates prepared from the composition are water-developable and also water-resistant following developing.
Inventors
- 👤 Katsukiyo Ishikawa
- 👤 Katsuji Konishi
- 👤 Hidefumi Kusuda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 04:27
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/033
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
38 words
A water-developable photopolymerizable composition comprising a copolymer of an α, β-ethylenic unsaturated carboxylic acid and a polymeric vinyl monomer, a polymeric vinyl compound with a secondary or tertiary nitrogen atom, a photo-polymeric unsaturated compound, and a photo- sensitizer.
Claim 2
Dependent Claim
38 words
A water-developable photopolymerizable composition comprising a copolymer of an α, β-ethylenic unsaturated carboxylic acid and a polymeric vinyl monomer, a polymeric vinyl compound with a secondary or tertiary nitrogen atom, a photo-polymeric unsaturated compound, and a photo- sensitizer.
Claim 3
Dependent Claim
36 words
A water-developable photo-polymerizable composition, comprising a copolymer of an α, β-ethylenically unsaturated carboxylic acid and a vinyl monomer; a vinyl compound having a secondary or tertiary nitrogen atom; an ethylenically unsaturated monomeric compound; and a photo-sensitizer.
Claim 4
Dependent Claim
36 words
A water-developable photo-polymerizable composition, comprising a copolymer of an α, β-ethylenically unsaturated carboxylic acid and a vinyl monomer; a vinyl compound having a secondary or tertiary nitrogen atom; an ethylenically unsaturated monomeric compound; and a photo-sensitizer.
Claim 5
Dependent Claim
23 words
A composition according to claim 1 or 2 in which the copolymer has an average molecular weight of approximately 5,000 to about 300,000.
Claim 6
Dependent Claim
21 words
A composition according to claim 3 in which the copolymer has an average molecular weight of approximately 10,000 to about 250,000.
Claim 7
Dependent Claim
22 words
A composition according to any of claims 1 to 4 in which the copolymer also includes units derived from a diene compound.
Claim 8
Dependent Claim
20 words
A composition according to claim 5 in which the diene compound is butadiene, isoprene, dimethyl-butadiene, chloroprene or a dicyclopentadiene derivative.
Claim 9
Dependent Claim
32 words
A composition according to claim 6 in which the dicyclopentadiene derivative is dicyclopentenyl (meth)acrylate, dicyclopentenoxyethyl (meth)acrylate, dicyclopentenoxypropyl (meth)acrylate, or the (meth) acrylic acid ester of diethyleneglycol dicyclopentenyl- monoether, or a combination thereof.
Claim 10
Dependent Claim
50 words
A composition according to any of claims 1 to 7 in which the copolymer comprises from about 5 to about 40 mol percent of the carboxylic acid, from about 5 to about 95 mol percent of the vinyl monomer, and from 0 to about 70 mol percent of diene compound.
Claim 11
Dependent Claim
19 words
A composition according to any of claims 1 to 8 in which the ethylenically-unsaturated carboxylic acid is (meth)acrylic acid.
Claim 12
Dependent Claim
33 words
A composition according to any of claims 1 to 9 in which the vinyl compound has a tertiary nitrogen atom with a single pair of electrons, said electrons not conjugated to double bonds.
Claim 13
Dependent Claim
28 words
A composition according to any of claims 2 to 10 in which the ethylenically-unsaturated monomeric compound is a water-insoluble compound having at least one terminal ethylenic double bond.
Claim 14
Dependent Claim
17 words
A composition according to claim 11 in which the unsaturated monomeric compound is a carboxylic acid ester.
Claim 15
Dependent Claim
37 words
A composition according to claim 12 in which the carboxylic acid ester is ethyleneglycol dimethacrylate, diethyleneglycol di(meth)acrylate, triethyleneglycol di(meth)acrylate, tetramethyleneglycol di(meth)acrylate, diarylitaconate, glycerine di(meth)acrylate, glycerine tri(meth)acrylate, 1,4-cyclohexanediol di(meth)acrylate, 1,2,4-butanetriol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, 1,5-pentanediol di(meth)acrylate, or 1,6-hexanediol di(meth)acrylate.
Claim 16
Dependent Claim
22 words
A composition according to any of claims 1 to 13 in which the photo-sensitizer is a benzoin ether or an acetophenone derivative.
Claim 17
Dependent Claim
73 words
A composition according to any of claims 2 to 14, comprising from about 30 to about 90 weight percent of the copolymer, from about 5 to about 65 weight percent of the ethylenically-unsaturated monomeric compound, from about 0.01 to about 10.0 weight percent of the photosensitizer, and sufficient of the vinyl compound having a secondary or tertiary nitrogen atom to neutralize from 20 to 100 percent of the carboxyl groups of the copolymer.
Claim 18
Dependent Claim
39 words
A composition according to claim 15, comprising about 40 to about 80 weight percent of copolymer, from about 15 to about 55 weight percent of ethylenically-unsaturated monomeric compound, and from about 0.05 to about 5.0 weight percent of photo-sensitizer.
Claim 19
Dependent Claim
27 words
A photo-polymer printing plate developable with water, comprising a support and a coating thereon of a water-developable photo-sensitive composition according to any of claims 1 to 16.
References Cited (Backward Citations)
No citation records indexed.
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