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    • 10. 发明申请
    • Photopolymer Printing Plate Precursor
    • 光聚合物印版前体
    • US20080160447A1
    • 2008-07-03
    • US10573233
    • 2004-09-01
    • Willi-Kurt GriesMarc Van DammeFrank Vangaever
    • Willi-Kurt GriesMarc Van DammeFrank Vangaever
    • G03F7/004G03F7/12
    • G03F7/092G03F7/031
    • A photopolymer printing plate precursor is disclosed comprising in this order a photosensitive coating and a protective coating on a support, wherein said photosensitive coating comprises a composition that is photopolymerizable upon absorption of light, said composition comprising a binder, a polymerizable compound, a sensitizer and a photoinitiator, and wherein said protective coating comprises one or more types of polyvinylalcohol, characterized in that said photoinitiator is a hexaaryl-bisimidazole compound and the mean saponification degree of all the polyvinylalcohols which are used in the protective coating is less than 93 mol-%. Said printing plate precursor has high speed and a good pre-heat latitude.
    • 公开了一种光敏聚合物印版前体,其包括在载体上的光敏涂层和保护涂层,其中所述感光涂层包含在吸收光时可光聚合的组合物,所述组合物包含粘合剂,可聚合化合物,敏化剂和 光引发剂,并且其中所述保护涂层包含一种或多种类型的聚乙烯醇,其特征在于所述光引发剂是六芳基 - 双咪唑化合物,并且在保护涂层中使用的所有聚乙烯醇的平均皂化度小于93mol% 。 所述印版前体具有高速度和良好的预热纬度。