发明授权
- 专利标题: Protective overcoat comprising interpenetrating network for photographic elements
- 专利标题(中): 保护性外衣包括用于照相元件的互穿网络
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申请号: US447409申请日: 1999-11-23
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公开(公告)号: US6153363A公开(公告)日: 2000-11-28
- 发明人: Mridula Nair , Tamara K. Jones , Lloyd A. Lobo , Brian A. Schell
- 申请人: Mridula Nair , Tamara K. Jones , Lloyd A. Lobo , Brian A. Schell
- 申请人地址: NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: NY Rochester
- 主分类号: G03C1/76
- IPC分类号: G03C1/76 ; G03C1/775 ; G03C1/79 ; G03C1/795 ; G03C11/08 ; G03C1/815 ; G03C1/89
摘要:
The present invention is a photographic element which includes a support, at least one silver-halide emulsion layer superposed on the support and a processing-solution-permeable protective overcoat overlying the silver halide emulsion layer. The processing-solution-permeable overcoat is composed of a polyurethane-containing component having acid functionalities wherein the polyurethane-containing component is an interpenetrating network further comprising at least two polymers, including at least one vinyl polymer and at least one urethane polymer. Suitably, a water-soluble polymer is also present in the overcoat. The present invention is also directed to a method of making a photographic print involving developing the photographic element in an alkaline developer solution.
公开/授权文献
- US5539595A Structure and enclosure assembly for a disk drive 公开/授权日:1996-07-23
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