| 摘要 |
PURPOSE:To obtain a composition having sufficient hardness, water resistance and developavility and enabling the elimination of a drying process and an after- exposure process by adding PVA, the condensate of N-methylol-(meth)acrylamide and polyol, and a photopolymn. initiator. CONSTITUTION:Polyvinyl alcohol (A) is blended with the ether type condensate (B) of N-methylolacrylamide or N-methylolmethacrylamide and polyol, and a photopolymn. initiator (C). To the blend may be added a thermal polymn. inhibitor (D) and a photopolymerizing monomer (E) having a vinyl group. The amounts of the components B, C, D, E are 10-120pts.wt., 0.02-10pts.wt. <=2pts.wt. and <=100pts.wt., respectively to 100pts.wt. of the component A. The preferred PVA is obtd. using polyvinyl acetate with 300-2,000 polymn. degree and has 70-90% saponification degree. |
