发明公开
EP1321810A3 Stabilized black-and-white developing compositions and methods of use
审中-公开
Stabilisierte Schwarz-Weiss-Entwicklungszusammensetzungen und Verwendungsmethoden
- 专利标题： Stabilized black-and-white developing compositions and methods of use
- 专利标题（中）： Stabilisierte Schwarz-Weiss-Entwicklungszusammensetzungen und Verwendungsmethoden
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申请号： EP02079440.0申请日： 2002-10-24
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公开(公告)号： EP1321810A3公开(公告)日： 2003-07-16
- 发明人: Schwartz, Paul Andrew, c/o Eastman Kodak Company , Flavin, Susan Mary, c/o Eastman Kodak Company
- 申请人： EASTMAN KODAK COMPANY
- 申请人地址： 343 State Street Rochester, New York 14650 US
- 专利权人： EASTMAN KODAK COMPANY
- 当前专利权人： EASTMAN KODAK COMPANY
- 当前专利权人地址： 343 State Street Rochester, New York 14650 US
- 代理机构： Haile, Helen Cynthia
- 优先权： US893 20011102
- 主分类号： G03C5/305
- IPC分类号： G03C5/305
摘要：
A black-and-white photographic developing composition or developing kit includes an ascorbic acid developing agent and is essentially free of hydroquinone and similar developing agents. The developing composition further includes a water-miscible hydroxy-containing organic solvent having a molecular weight of from 50 to 200. The weight ratio of the organic solvent to water is from 0.1:1 to 8:1.
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