发明授权
- 专利标题： Incorporated carboxy substituted p-phenylenediamine color developer
- 专利标题（中）： 合成羧基取代的对苯二甲酸色素开发
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申请号： US531399申请日： 1974-12-10
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公开(公告)号： US4066456A公开(公告)日： 1978-01-03
- 发明人: Burton H. Waxman , Michael C. Mourning , Theodore Panasik
- 申请人： Burton H. Waxman , Michael C. Mourning , Theodore Panasik
- 申请人地址： NY New York
- 专利权人： GAF Corporation
- 当前专利权人： GAF Corporation
- 当前专利权人地址： NY New York
- 主分类号： C07C229/60
- IPC分类号： C07C229/60 ; C07C67/00 ; C07C227/00 ; C07C227/04 ; C07C227/16 ; C07C227/18 ; G03C7/30 ; G03C7/413 ; G03C5/54 ; G03C1/40 ; G03C5/30 ; G03C7/00
摘要：
A derivative of paraphenylenediamine, for use as a color developer, having a primary amino group available for oxidative coupling, and a carboxy group bound to the benzene ring to provide the compound with the required stability to enable the compound to be incorporated into a photographic film, the compound being non-diffusible during development of the photographic film in an alkaline processing solution.
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