Light information recording medium
专利汇可以提供Light information recording medium专利检索，专利查询，专利分析的服务。并且PURPOSE:To obtain a light information recording medium excellent in moisture proof property and chemical deterioration proof property and capable of long preservation by providing a protective film made by laminating specified resin and polyvinylidene chloride. CONSTITUTION:A resin film 3a or 3b which can be hardened by light or electron beam is provided by covering the face of a recording layer 1 or two faces of the recording layer 1 and a transparent substrate 2, and a coated film 4 of polyvinylidene chloride is formed on the surface. At this time, by bridging or holding in the state of mixture high molecular or low molecular substance having unopened ring epoxy radical in resin that can be hardened by light or electron beam, expansion of free chlorine of the coated film of polyvinylidene chloride 4 to the face of the recording layer 1 can be suppressed by reaction. By the protective film of this constitution, deterioration of the recording layer due to water and ion is prevented, and long-time preservability of the light information recording medium can be enhanced.，下面是Light information recording medium专利的具体信息内容。
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