发明公开
EP0093536A2 Stabilised photographic color developer compositions and processes
失效
稳定化的彩色照相显影剂，和方法及其使用的组合物。
- 专利标题： Stabilised photographic color developer compositions and processes
- 专利标题（中）： 稳定化的彩色照相显影剂，和方法及其使用的组合物。
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申请号： EP83302195.9申请日： 1983-04-19
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公开(公告)号： EP0093536A2公开(公告)日： 1983-11-09
- 发明人: Twist, Peter J. , Bailey, Joseph , Briggs, Stuart P. , Mijovic, Miroslav V. , Southby, David Thomas
- 申请人： EASTMAN KODAK COMPANY (a New Jersey corporation) , KODAK LIMITED
- 申请人地址： 343 State Street Rochester, New York 14650 US
- 专利权人： EASTMAN KODAK COMPANY (a New Jersey corporation),KODAK LIMITED
- 当前专利权人： EASTMAN KODAK COMPANY (a New Jersey corporation),KODAK LIMITED
- 当前专利权人地址： 343 State Street Rochester, New York 14650 US
- 代理机构： Baron, Paul Alexander Clifford
- 优先权： GB8212463 19820429
- 主分类号： G03C7/30
- IPC分类号： G03C7/30
摘要：
Photographic color developing compositions containing a primary aromatic amino color developing agent and a hydroxylamine compound are stabilised against decomposition of hydroxylamine and formation of sludge by incorporating stabilised chelating compounds of the formula:
wherein each R 1 is hydrogen, -CH 2 COOH or
each R 2 is hydrogen or -COOH
p is 0 or 1, and
X completes a substituted or unsubstituted aromatic nucleus.
The composition may also contain another different chelating agent, e.g. of the aminopolycarboxylic or aminopolyphosphonic acid type.
wherein each R 1 is hydrogen, -CH 2 COOH or
each R 2 is hydrogen or -COOH
p is 0 or 1, and
X completes a substituted or unsubstituted aromatic nucleus.
The composition may also contain another different chelating agent, e.g. of the aminopolycarboxylic or aminopolyphosphonic acid type.
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