发明名称 |
Photographic element containing an azopyrazolone masking coupler exhibiting improved keeping |
摘要 |
The invention provides a photographic element comprising a support bearing a light-sensitive photographic silver halide layer containing (1) a bicyclic azole coupler (2) an azopyrazolone masking coupler and (3) a low impact development inhibitor releasing (LIDIR) coupler having at least one hydrogen atom at the coupling site and which does not substantially reduce contrast in the layer in which it is coated.
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申请公布号 |
US5641613(A) |
申请公布日期 |
1997.06.24 |
申请号 |
US19960591122 |
申请日期 |
1996.01.25 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
BOFF, JANE SARAH;SINGER, STEPHEN PAUL |
分类号 |
G03C7/00;G03C7/305;G03C7/32;G03C7/333;G03C7/38;G03C7/384;(IPC1-7):G03C7/305 |
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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