发明名称 |
Combinations of purine-releasing pyrazolone DIR couplers and pyrazolone or 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.
|
申请公布号 |
US5989798(A) |
申请公布日期 |
1999.11.23 |
申请号 |
US19970994663 |
申请日期 |
1997.12.19 |
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 |
|
代理人 |
|
主权项 |
|
地址 |
|