| 摘要 |
PURPOSE:To obtain suitable bonding strength of a layer of a photopolymerizing composition to a substrate and suitable strength of a hardened film by using a specified polymer and a specified polymer mixture as the transparent support and the film forming high molecular substance of a stripping-developable image forming material, respectively. CONSTITUTION:On a transparent support, a layer of a photopolymerizing composition contg. an ethylenic unsatd. polymerizing composition, a film forming polymer and a photopolymn. initiator is formed to manufacture a stripping-developable image forming material. The support of this material is made of polyethylene terephthalate, and the film forming polymer is a mixture of (a) chlorinated polyolefin and/or chlororubber, (b) an alkyl(meth)acrylic ester polymer and (c) linear satd. polyester consisting of terephthalic acid, ethylene glycol and other dibasic acid or other dihydric alcohol and having <= about 30,000 average mol.wt. and COOH or OH at both ends of the molecules. |
