发明授权
US4205990A Process for forming a cyan dye image by the use of a 2-equivalent cyan
coupler
失效
通过使用2-当量青色成色剂形成青色染料图像的方法
- 专利标题： Process for forming a cyan dye image by the use of a 2-equivalent cyan coupler
- 专利标题（中）： 通过使用2-当量青色成色剂形成青色染料图像的方法
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申请号： US948651申请日： 1978-10-03
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公开(公告)号： US4205990A公开(公告)日： 1980-06-03
- 发明人: Hidetaka Deguchi , Takaya Endo , Shoji Kikuchi , Toshiki Komaita
- 申请人： Hidetaka Deguchi , Takaya Endo , Shoji Kikuchi , Toshiki Komaita
- 申请人地址： JPX Nihonbashi-Muro
- 专利权人： Konishiroku Photo Industry Co., Ltd.
- 当前专利权人： Konishiroku Photo Industry Co., Ltd.
- 当前专利权人地址： JPX Nihonbashi-Muro
- 优先权： JPX50-94294 19750802
- 主分类号： C07D295/192
- IPC分类号： C07D295/192 ; G03C7/305 ; G03C7/333 ; G03C7/00 ; G03C1/40
摘要：
A process for forming a cyan dye image by using a novel photographic 2-equivalent cyan coupler which is characterized by having a splitt-off group of the below-indicated general formula at the active position of the cyan coupler so that the oxy portion is present on the side of the active position: ##STR1## wherein R.sub.1 and R.sub.2 stand for a hydrogen atom or an organic group, provided at least one of R.sub.1 and R.sub.2 should be an organic group, is disclosed.
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