发明名称 |
Protective overcoat for photographic elements |
摘要 |
<p>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 overcoat overlying the silver-halide emulsion layer that becomes water-resistant in the final product, without requiring lamination or fusing. The presence, in the coating composition, of a compound comprising a blocked copolymer of ethylene oxide and propylene oxide has been found to improve wet durability, prevent the retention of iron, and improve the conversion of the overcoat to a water-resistant layer during processing. The present invention is also directed to a method of making a photographic print involving developing the photographic element.</p> |
申请公布号 |
EP1308777(A1) |
申请公布日期 |
2003.05.07 |
申请号 |
EP20020079441 |
申请日期 |
2002.10.24 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
YAU, HWEI-LING;O'CONNOR, KEVIN MICHAEL;FLOOD, ELMER CHARLES;DECKER, DAVID E. |
分类号 |
G03C1/74;G03C1/76;(IPC1-7):G03C1/76 |
主分类号 |
G03C1/74 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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