Hydrophilic copolymer, process for producing same, photosensitive composition, and photosensitive rubber plate
申请人:NIPPON ZEON CO., LTD.
公开号:EP0778297A1
公开(公告)日:1997-06-11
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 (A) plus (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.
提供了一种光敏组合物,它包括 (A) 20 - 65 重量份的弹性体,(B) 35 - 80 重量份的亲水共聚物,以共聚物的重量为基准,主要由 (1) 1 - 30 重量份的含磷、硼或硫的单乙烯不饱和单体单元,(2) 0.5 - 25 重量份的含磷、硼或硫的二乙烯不饱和单体单元,(3) 40 - 90 重量份的共轭二烯单体单元组成。(3) 40 - 90 wt.% 的共轭二烯单体单元,以及 (4) 0 - 58.5 wt.%的其他可共聚单体单元;(A)加(B)的总量为 100 重量份,(C)5-100 重量份的可光聚合乙烯基不饱和单体,以及(D)0.1-10 重量份的光聚合引发剂。该感光组合物可用于制备柔性版印刷板。