发明名称 |
Protective overcoat comprising interpenetrating network for photographic elements |
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.
|
申请公布号 |
US6153363(A) |
申请公布日期 |
2000.11.28 |
申请号 |
US19990447409 |
申请日期 |
1999.11.23 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
NAIR, MRIDULA;JONES, TAMARA K.;LOBO, LLOYD A.;SCHELL, BRIAN A. |
分类号 |
G03C1/76;G03C1/775;G03C1/79;G03C1/795;G03C11/08;(IPC1-7):G03C1/815;G03C1/89 |
主分类号 |
G03C1/76 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|