Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1996-12-05
1999-03-30
Henderson, Christopher
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
522110, 525201, 525212, C08L 4302, C08L 900
Patent
active
058891161
ABSTRACT:
A photosensitive composition is provided, which comprises (A) 20-65 wt. parts of an elastomer, (B) 35-80 wt. parts of a hydrophilic copolymer consisting essentially of, based on the weight of the copolymer, (1) 1-30 wt. % of units of a phosphorus-, boron- or sulfur-containing monoethylenically unsaturated monomer, (2) 0.5-25 wt. % of units of a phosphorus-, boron- or sulfur-containing diethylenically unsaturated monomer, (3) 40-90 wt. % of units of a conjugated diene monomer, and (4) 0-58.5 wt. % of units of other copolymerizable monomer; the total amount of the elastomer (A) and the hydrophilic copolymer (B) being 100 wt. parts, (C) 5-100 wt. parts of a photopolymerizable ethylenically unsaturated monomer, and (D) 0.1-10 wt. parts of a photopolymerization initiator. The photosensitive composition is useful for the preparation of a flexographic printing plate.
REFERENCES:
patent: 5679485 (1997-10-01), Suzuku et al.
EP 0 699 961 Mar. 6, 1996.
Kanzaki Atsuhiro
Suzuki Takao
Henderson Christopher
Nippon Zeon Co. Ltd.
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