发明名称 |
Combinations of purine-releasing pyrazolone DIR couplers and pyrazolone of pyrazolotriazole imaging couplers |
摘要 |
A photographic element comprises: (a) a support; and (b) at least one silver halide emulsion layer; wherein said emulsion layer contains (c) at least one magenta dye-forming pyrazolone DIR coupler of structure I; and (d) at least one magenta dye-forming imaging coupler of structure II, structure IIIa or structure IIIb, below:wherein the substituents are as defined in the specification.
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申请公布号 |
US6174662(B1) |
申请公布日期 |
2001.01.16 |
申请号 |
US19990400206 |
申请日期 |
1999.09.21 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
MERKEL PAUL B.;POSLUSNY JERROLD N.;STEELE DAVID A. |
分类号 |
G03C7/24;G03C7/305;G03C7/32;G03C7/38;G03C7/384;(IPC1-7):G03C1/08;G03C7/26 |
主分类号 |
G03C7/24 |
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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