Photopolymerizable compositions comprising (a) at least one ethylenically unsaturated compound, (b) at least one photoinitiator or photoinitiator system, (c) sensitizing amount of an N-alkylindolylidene or N-alkylbenzothiazolylidene alkanone as defined, and optionally (d) at least one organic polymeric binder. The compositions, in layer form are useful in printing plates, litho films, photoresists, solder mask and for making image proofs. The products show sensitization to visible light.
可进行光聚合的组合物,包括(a)至少一种
乙烯基不饱和化合物,(b)至少一种光
引发剂或光
引发剂体系,(c)如定义的 N-烷基
吲哚亚基或 N-烷基
苯并噻唑亚基烷酮的敏化量,以及(d)可选的至少一种有机聚合物粘合剂。层状组合物可用于印版、平版印刷膜、光刻胶、阻焊层和制作图像样张。产品对可见光有敏化作用。