发明名称 |
Backside protective overcoat compositions for silver halide photographic elements |
摘要 |
The present invention is a photographic element which includes a support having a frontside and a backside, at least one silver halide emulsion layer superposed on the frontside of the support; and a protective overcoat layer superposed on the backside of the support. The protective overcoat layer is a mixture of a first vinyl polymer having an acid number of from 5 to 100 and a second vinyl polymer having an acid number of from 70 to 250 wherein the acid number of the second polymer is greater than the acid number of the first polymer.
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申请公布号 |
US5998118(A) |
申请公布日期 |
1999.12.07 |
申请号 |
US19980019065 |
申请日期 |
1998.02.05 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
SCHWARK, DWIGHT W.;WANG, YONGCAI;ANDERSON, CHARLES C. |
分类号 |
G03C1/76;(IPC1-7):G03C1/89;G03C1/93 |
主分类号 |
G03C1/76 |
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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