A singe- or multilayer radiation-sensitive element comprises on a substrate a radiation-sensitive coating that comprises a copolymer soluble or dispersible in aqueous alkaline solution and comprising (meth)acryl recurring units, imide recurring units, and amide recurring units derived from corresponding ethylenically unsaturated polymerizable monomers; the copolymer provides increased chemical resistance for the radiation-sensitive elements that can be negatively or positively working lithographic printing plate precursors.
一种单层或多层辐射敏感元件包括在基底上的辐射敏感涂层,该涂层由可溶于或分散于碱性
水溶液中的共聚物组成,共聚物包括由相应的
乙烯不饱和可聚合单体衍生的(甲基)
丙烯酸递归单元、
亚胺递归单元和酰胺递归单元;共聚物为辐射敏感元件提供了更强的耐
化学性,这些辐射敏感元件可以是负工作或正工作的平版印刷板前体。