发明授权
- 专利标题: Protective epoxy overcoat for imaging elements
- 专利标题(中): 用于成像元件的保护性环氧树脂涂层
-
申请号: US09699866申请日: 2000-10-30
-
公开(公告)号: US06436617B1公开(公告)日: 2002-08-20
- 发明人: Yongcai Wang , Kevin M. O'Connor , Melvin M. Kestner , James L. Bello
- 申请人: Yongcai Wang , Kevin M. O'Connor , Melvin M. Kestner , James L. Bello
- 主分类号: G03C176
- IPC分类号: G03C176
摘要:
The present invention relates to photographic elements having a protective overcoat that resists fingerprints, common stains, and spills. The overcoat comprises an epoxy material, an acid polymer, a water-soluble hydrophilic binder and an associative thickener. In one embodiment, a photographic element includes a support, at least one silver halide emulsion layer superposed on the support and a processing-solution-permeable overcoat overlying the silver halide emulsion layer that becomes water-resistant in the final product without requiring lamination or fusing. The present invention is also directed to a method of making a print involving developing the photographic element.
信息查询