Patent EP0081964A2 successfully refreshed from Google Patents.
EP0081964A2
Expired / Lapsed
EP
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Photosensitive polymer composition
Assignee: Toray Industries Inc
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Filing: 1982-12-07
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Granted: —
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Expires: 2002-12-07
Abstract
Abstract A photosensitive polymer composition including the following components A, B, and C is presented. A. 100 parts by weight of partially saponified polyvinyl acetate having a saponification degree of 60 to 99 mole%; B. 20 to 200 parts by weight of polyfunctional acrylate or methacrylate having a molecular weight of not more than 2000 and having at least two acryloyl or methacryloyl groups in the same molecule thereof and a number of a hydroxyl group or groups not more than the number of said acryloyl and methacryloyl groups in the same molecule thereof; and C. 1 to 60 parts by weight of a saturated compound having a molecular weight of not more than 1000 and a boiling point of not less than 150°C and having at least one hydroxyl group in the molecule thereof. This photosensitive polymer composition is extremely effective for use in a water-developable sensitive printing plate having an excellent image-reproducibility and flexibility.
Inventors
- 👤 Junichi Fujikawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 18:54
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/033; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/11
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
172 words
A photosensitive polymer composition comprising: A. 100 parts by weight of a base polymer which is a partially saponified and optionally modified polyvinyl acetate having a saponification degree of 60 to 99 mole %, alone or in admixture with another polymer or other polymers in a quantity of up to 20% by weight of the other polymer or polymers based on the weight of the partially saponified and optionally modified polyvinyl acetate; B. 20 to 200 parts by weight of polyfunctional acrylate or methacrylate having a molecular weight of not more than 2000 and having at least two acryloyl or methacryloyl groups in the same molecule thereof and a a number of/hydroxyl group or groups not more than the number of said acryloyl and methacryloyl groups in the same molecule thereof; and C. 1 to 60 parts by weight of a saturated compound having a molecular weight of not more than 1000 and a boiling point of not less than 150°C and having at least one hydroxyl group in the molecule thereof.
Claim 2
Dependent Claim
172 words
A photosensitive polymer composition comprising: A. 100 parts by weight of a base polymer which is a partially saponified and optionally modified polyvinyl acetate having a saponification degree of 60 to 99 mole %, alone or in admixture with another polymer or other polymers in a quantity of up to 20% by weight of the other polymer or polymers based on the weight of the partially saponified and optionally modified polyvinyl acetate; B. 20 to 200 parts by weight of polyfunctional acrylate or methacrylate having a molecular weight of not more than 2000 and having at least two acryloyl or methacryloyl groups in the same molecule thereof and a a number of/hydroxyl group or groups not more than the number of said acryloyl and methacryloyl groups in the same molecule thereof; and C. 1 to 60 parts by weight of a saturated compound having a molecular weight of not more than 1000 and a boiling point of not less than 150°C and having at least one hydroxyl group in the molecule thereof.
Claim 3
Dependent Claim
127 words
A photosensitive polymer composition comprising : A. 100 parts by weight of partially saponified polyvinyl acetate having a saponification degree of 60 to 99 mole %; B. 20 to 200 parts by weight of polyfunctional acrylate or methacrylate having a molecular weight of not more than 2000 and having at least two acryloyl or methacryloyl groups in the same molecule thereof and a number of a hydroxyl group or groups not more than the number of said acryloyl and methacryloyl groups in the same molecule thereof; and C. 1 to 60 parts by weight of a saturated compound having a molecular weight of not more than 1000 and a boiling point of not less than 150°C and having at least one hydroxyl group in the molecule thereof.
Claim 4
Dependent Claim
127 words
A photosensitive polymer composition comprising : A. 100 parts by weight of partially saponified polyvinyl acetate having a saponification degree of 60 to 99 mole %; B. 20 to 200 parts by weight of polyfunctional acrylate or methacrylate having a molecular weight of not more than 2000 and having at least two acryloyl or methacryloyl groups in the same molecule thereof and a number of a hydroxyl group or groups not more than the number of said acryloyl and methacryloyl groups in the same molecule thereof; and C. 1 to 60 parts by weight of a saturated compound having a molecular weight of not more than 1000 and a boiling point of not less than 150°C and having at least one hydroxyl group in the molecule thereof.
Claim 5
Dependent Claim
62 words
A composition as claimed in claim 1, wherein component A is partially saponified polyvinyl acetate containing therein 1% to 20% by weight, based on the weight of the partially saponified polyvinyl acetate, of at least one compound selected from the group consisting of cellulose derivatives, polyethylene oxides, the ring opening polymers of a-(N-dimethylamino)-&-caprolactam, and the ring opening copolymers of α-(N-dimethylamino)-ε-caprolactam and ε-caprolactam.
Claim 6
Dependent Claim
28 words
. A composition as claimed in any preceding claim, wherein the saponification degree of the partially saponified polyvinyl acetate of component A is 70 to 90 mole %.
Claim 7
Dependent Claim
24 words
A composition as claimed in claim 4, wherein the polymerization degree of the partially saponified polyvinyl acetate of component A is 200 to 2000.
Claim 8
Dependent Claim
33 words
A composition as claimed in any preceding claim, wherein the partially saponified polyvinyl acetate of component A is unsaturated partially saponified polyvinyl acetate having glycidyl methacrylate addition-bonded to the terminal carboxyl groups thereof.
Claim 9
Dependent Claim
33 words
A composition as claimed in any preceding claim, wherein the partially saponified polyvinyl acetate of component A is partially saponified polyvinyl acetate having 1 to 10 mole % of allyl sulfonate copolymerized therewith.
Claim 10
Dependent Claim
39 words
A composition as claimed in any preceding claim, wherein the partially saponified polyvinyl acetate of component A is modified partially saponified polyvinyl acetate modified by the reaction of ethylene oxide with the hydroxyl groups present in the polymer molecule.
Claim 11
Dependent Claim
55 words
A composition as claimed in any preceding claim, wherein component B is polyfunctional acrylate or polyfunctional methacrylate having 1 to 2 hydroxyl groups, derived from the esterification of acrylic acid or methacrylic acid with 2 to 3 hydroxyl groups of a polyhydric alcohol having 2 to 30 carbon atoms and 3 to 4 hydroxyl groups.
Claim 12
Dependent Claim
51 words
A composition as claimed in any one of claims 1 to 8, wherein component B is polyfunctional acrylate or polyfunctional methacrylate derived from the reaction of acrylic acid or methacrylic acid with the glycidyl ether of a polyhydric alcohol having 2 to 30 carbon atoms and 2 to 5 hydroxyl groups.
Claim 13
Dependent Claim
20 words
A composition as claimed in claim 9 or claim 10, wherein the polyhydric alcohol is ethylene glycol or propylene glycol.
Claim 14
Dependent Claim
51 words
A composition as claimed in any one of claims 1 to 8, wherein component B is polyfunctional acrylate or polyfunctional methacrylate derived from the reaction of 8-hydroxyethyl acrylate of a-hydroxyethyl methacrylate with the glycidyl ether of a polyfunctional alcohol having 2 to 30 carbon atoms and 2 to 5 hydroxy groups.
Claim 15
Dependent Claim
66 words
A composition as claimed in any one of claims 1 to 8, wherein component B is a reaction product of (i) an epoxy compound having 4 to 15 carbon atoms and an acryloyl or methacryloyl group with (ii) an unsaturated carboxylic acid having 2 to 30 carbon atoms or a polyhydric saturated carboxylic acid having 2 to 30 carbon atoms and 2 to 5 hydroxyl groups.
Claim 16
Dependent Claim
24 words
A composition as claimed in claim 13, wherein the epoxy compound is glycidyl methacrylate and unsaturated carboxylic acid is acrylic acid or methacrylic acid.
Claim 17
Dependent Claim
63 words
A composition as claimed in any one of claims 1 to 8 wherein component B is a reaction product of (i) an epoxy compound having 4 to 15 carbon atoms and an acryloyl or methacryloyl group with (ii) an unsaturated alcohol having 2 to 30 carbon atoms or a polyhydric alcohol having 2 to 30 carbon atoms and 2 to 5 hydroxy groups.
Claim 18
Dependent Claim
49 words
A composition as claimed in any one of claims 1 to 8, wherein component B is a reaction product of (i) an epoxy compound having 4 to 15 carbon atoms and an acryloyl or methacryloyl group with (ii) a primary or secondary amine having 2 to 30 carbon atoms.
Claim 19
Dependent Claim
33 words
A composition as claimed in any preceding claim, wherein the amount of component B in the composition is 50 to 150 parts by weight, based on 100 parts by weight of component A.
Claim 20
Dependent Claim
24 words
A composition as claimed in any preceding claim, wherein component C is a compound having 2 or more hydroxyl groups in the molecule thereof.
Claim 21
Dependent Claim
34 words
A composition as claimed in claim 18, wherein the compound having 2 or more hydroxyl groups is at least one member selected from ethylene glycol, diethylene glycol, triethylene glycol, glycerine, diglycerine, trimethylol-propane and trimethylol-ethane.
Claim 22
Dependent Claim
18 words
A composition as claimed in any one of claims 1 to 17, wherein component C is n-octyl alcohol.
Claim 23
Dependent Claim
33 words
A composition as claimed in any preceding claim, wherein the amount of component C in the composition is 5 to 50 parts by weight, based on 100 parts by weight of component A.
References Cited (Backward Citations)
No citation records indexed.
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