发明授权
- 专利标题: COLOR-PROVIDING COMPOUNDS
- 专利标题(中): COLOR建立联系
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申请号: EP97907573.6申请日: 1997-01-31
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公开(公告)号: EP0823068B1公开(公告)日: 2000-08-09
- 发明人: VISKI, Peter , WALLER, David, P.
- 申请人: POLAROID CORPORATION
- 申请人地址: 549 Technology Square Cambridge, Massachusetts 02139-3589 US
- 专利权人: POLAROID CORPORATION
- 当前专利权人: POLAROID CORPORATION
- 当前专利权人地址: 549 Technology Square Cambridge, Massachusetts 02139-3589 US
- 代理机构: Reitzner, Bruno, Dr.
- 优先权: US607296 19960226; US754286 19961120
- 国际公布: WO9731295 19970828
- 主分类号: G03C8/10
- IPC分类号: G03C8/10 ; G03C8/40 ; C09B29/01 ; C09B29/28 ; C09B29/50 ; C09B69/00
摘要:
There are described color-providing compounds having at least two cyclic 1,3-sulfur-nitrogen moieties and one complete dye or dye intermediate. The color-providing compound is stable in the photographic processing composition but capable of undergoing cleavage in the presence of an imagewise distribution of silver ions and/or soluble silver complex made available as a function of development to liberate a complete dye or dye intermediate in an imagewise distribution corresponding to that of the silver ion and/or the soluble silver complex. The color-providing compounds are useful as image-forming materials in color photographic, photothermographic, thermographic, and other processes.
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