申请人:——
公开号:US20030148209A1
公开(公告)日:2003-08-07
A presensitized plate for preparing a lithographic printing plate comprises a substrate provided thereon with a light-sensitive layer containing a fluoro-aliphatic group-containing copolymer prepared by copolymerizing at least (A) an addition polymerizable monomer having, on a side chain, a fluoro-aliphatic group in which hydrogen atoms are replaced with fluorine atoms and (B) a (meth)acrylate having an ester chain represented by a specific general formula. The use of the foregoing specific fluorine atom-containing polymer permits the formation of a light-sensitive layer having uniform surface condition without causing abnormality in the surface quality due to the foaming phenomenon observed during the production and also permits the production of a positive light-sensitive resin composition having excellent solubility and dispersibility in a developer.
一种用于制备平版印刷板的预感光板,包括一个基板,基板上有一个感光层,该感光层含有一种含氟脂肪族基团的共聚物,该共聚物是由至少(A)一种侧链上具有氟脂肪族基团的加成聚合单体和(B)一种具有由特定通式表示的酯链的(甲基)丙烯酸酯共聚而成。使用上述特定的含氟聚合物,可以形成具有均匀表面状态的感光层,而不会因生产过程中观察到的起泡现象而导致表面质量异常,还可以生产出在显影剂中具有良好溶解性和分散性的正感光树脂组合物。