发明名称 |
Photographic element containing an azopyrazolone masking coupler exhibiting improved keeping |
摘要 |
This invention provides a photographic process and element where the element comprises a support bearing a light-sensitive photographic silver halide layer containing (1) a bicyclic azole coupler, (2) an azopyrazolone masking coupler, and (3) an aromatic electron-rich compound having ring substituents for which the sum of the individual Hammett sigma-para values is more negative than -0.80.
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申请公布号 |
US5591569(A) |
申请公布日期 |
1997.01.07 |
申请号 |
US19950539560 |
申请日期 |
1995.10.05 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
KAPP, DANIEL L.;YOUNATHAN, JANET |
分类号 |
G03C7/00;G03C7/30;G03C7/333;G03C7/38;G03C7/384;G03C7/392;(IPC1-7):G03C7/333 |
主分类号 |
G03C7/00 |
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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