发明授权
US5460924A Photographic peracid bleaches with ferric 2-pyridinecarboxylate and
2,6-pyridinecarboxylate catalysts
失效
具有2-吡啶羧酸铁和2,6-吡啶羧酸酯催化剂的摄影过酸漂白剂
- 专利标题： Photographic peracid bleaches with ferric 2-pyridinecarboxylate and 2,6-pyridinecarboxylate catalysts
- 专利标题（中）： 具有2-吡啶羧酸铁和2,6-吡啶羧酸酯催化剂的摄影过酸漂白剂
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申请号： US230189申请日： 1994-04-20
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公开(公告)号： US5460924A公开(公告)日： 1995-10-24
- 发明人: John M. Buchanan , Stuart T. Gordon , Keith H. Stephen , Richard P. Szajewski , Sidney J. Bertucci
- 申请人： John M. Buchanan , Stuart T. Gordon , Keith H. Stephen , Richard P. Szajewski , Sidney J. Bertucci
- 申请人地址： NY Rochester
- 专利权人： Eastman Kodak Company
- 当前专利权人： Eastman Kodak Company
- 当前专利权人地址： NY Rochester
- 主分类号： G03C1/43
- IPC分类号： G03C1/43 ; G03C7/42 ; G03C7/02 ; G03C7/384
摘要：
This invention provides an accelerator for peracid bleaches used for bleaching silver halide photographic elements. The accelerator is a complex of ferric (Fe III) ion and a 2-pyridinecarboxylic acid or a 2,6-pyridinecarboxylic acid. The accelerator may be contained in the bleaching solution, a solution preceding the bleaching solution or in the photographic elements themselves.
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