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    • 94. 发明授权
    • Photosensitive element for producing printing plates or resist images
    • 用于生产印版或抗蚀剂图像的感光元件
    • US4842987A
    • 1989-06-27
    • US62162
    • 1987-06-15
    • Albert ElzerAxel SannerHans SchuppErich Beck
    • Albert ElzerAxel SannerHans SchuppErich Beck
    • C08F2/48G03F7/033
    • G03F7/033Y10S430/117
    • A photosensitive recording element which is suitable for the production of printing plates or resist images possesses a photopolymerizable recording layer which is applied to a dimensionally stable base, can be developed in an aqueous alkaline medium and contains, as a polymeric binder, one or more film-forming copolymers which are insoluble in water but soluble or dispersible in aqueous alkaline solutions and consist of from 10 to 50% by weight of one or more N-vinylamides, preferably N-vinylcaprolactam and/or N-vinylpyrrolidone, from 5 to 30% by weight of acrylic acid and/or methacrylic acid, from 30 to 80% by weight of one or more comonomers from the group consisting of the vinyl aromatics and (meth)acrylates of monoalkanols and from 0.2 to 5% by weight of an olefinically unsaturated compound which contains basic nitrogen atoms and has a pK.sub.a >4.
    • 适用于制造印版或抗蚀剂图像的光敏记录元件具有应用于尺寸稳定的基底的可光聚合记录层,可以在碱性介质水溶液中显影,并且作为聚合物粘合剂含有一个或多个膜 不溶于水但可溶于或分散于碱性水溶液中的共混物,其组成为10至50重量%的一种或多种N-乙烯基酰胺,优选N-乙烯基己内酰胺和/或N-乙烯基吡咯烷酮,5-30% 的丙烯酸和/或甲基丙烯酸,30至80重量%的一种或多种共聚单体,其由乙烯基芳族化合物和单链烷醇的(甲基)丙烯酸酯和0.2-5重量%的烯属不饱和 含有碱性氮原子并具有pKa> 4的化合物。