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1. 发明授权

US3770438A Photopolymerizable transfer elements 失效
标题翻译：光聚合转移元素
公开(公告)号：US3770438A
公开(公告)日：1973-11-06
申请号：US3770438D
申请日：1971-12-09
申请人： CELESTE J
发明人： CELESTE J
IPC分类号： G03F7/027 , G03C11/12
CPC分类号： G03F7/027 , Y10S430/106 , Y10S430/114
摘要： A photopolymerizable film element is made by coating a photopolymerizable composition onto an actinically transparent support, drying, and laminating it with a temporary protective cover sheet or to a surface to be imaged. The photopolymerizable composition comprises a mixture of an organic binder, an ethylenically unsaturated monomer, and an initiating system. The monomer is present in an amount in excess of the absorptive capacity of the binder for monomer, so that a thin layer of substantially free monomer forms on the monomer-binder layer upon drying. The optical density of the photopolymerizable layer, in the actinic region of the exposure, must be no greater than 0.7 and the thickness of the dried layer must be at least 0.00005 inch. The support for the photopolymerizable composition must have greater adhesion to the unexposed photopolymerizable layer than that exhibited by the cover sheet, and less adhesion to the exposed photopolymer layer than that exhibited by the cover sheet or the surface to be imaged.
摘要翻译：可光聚合膜元件是通过将光聚合性组合物涂布在光化学透明的载体上，干燥，并将其与临时保护性覆盖片或待成像表面层合而制成的。可光聚合组合物包含有机粘合剂，烯属不饱和单体和引发体系的混合物。单体的存在量超过用于单体的粘合剂的吸收能力，使得在干燥时在单体 - 粘合剂层上形成基本上游离的单体的薄层。光聚合层在曝光的光化区域的光密度必须不大于0.7，干燥层的厚度必须至少为0.00005英寸。对于可光聚合组合物的支持物，对于未曝光的光聚合层，与覆盖片所表现的粘合性相比，必须具有比未曝光的可光聚合层更大的粘合性，并且对于曝光的光聚合物层的粘附性低于覆盖片或被成像表面所表现的粘合性。

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