| 摘要 |
PROBLEM TO BE SOLVED: To provide a photosensitive rubber plate excellent in transparency and strength balance having a high water solvent washing speed of unexposed part, and a photosensitive composite for providing it. SOLUTION: A photosensitive composite 1 is obtained by kneading 30 parts by weight of a C-D-C type block copolymer having a butadiene block/styrene block ratio of 80.2/19.8, a vinyl bond content in butadiene block of 30.2%, and a weight average molecular weight of 13.4×10<4> ; 15 parts by weight of a tapered A-B type block copolymer having a styrene content of 25% and a long chain quantity of 82.5%; 55 parts by weight of a hydrophilic copolymer; 55 parts by weight of liquefied polybutadiene; 10 parts by weight of 1,6-hexanediol diacrylate; 10 parts by weight of 1,6-hexanediol dimethacrylate; and 1 part by weight of benzoylmethylether. This photosensitive composite 1 is put between two polyester films and pressurized by use of a pressing machine to provide a photosensitive rubber plate 1 having a thickness of 3mm. |
