发明授权
- 专利标题： PHOTOGRAPHIC COLOUR COUPLERS AND PHOTOGRAPHIC MATERIALS CONTAINING THEM
- 专利标题（中）： 照相成色和含感光材料。
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申请号： EP92900001.6申请日： 1991-12-03
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公开(公告)号： EP0560828B1公开(公告)日： 1995-03-22
- 发明人: LEYSHON, Llewelyn James , CLARKE, David
- 申请人： KODAK LIMITED , EASTMAN KODAK COMPANY
- 申请人地址： Headstone Drive Harrow, Middlesex HA1 4TY GB
- 专利权人： KODAK LIMITED,EASTMAN KODAK COMPANY
- 当前专利权人： KODAK LIMITED,EASTMAN KODAK COMPANY
- 当前专利权人地址： Headstone Drive Harrow, Middlesex HA1 4TY GB
- 代理机构： Baron, Paul Alexander Clifford
- 优先权： GB9026557 19901206
- 国际公布： WO9210788 19920625
- 主分类号： G03C7/38
- IPC分类号： G03C7/38
摘要：
A 1-H-pyrazolo-[1,5-b]-1,2,4-triazole having a combination of an arylthio coupling-off group and a tertiary alkyl group attached via its tertiary carbon atom in the 6-position preferably has general formula (I), wherein R1 is a tertiary alkyl group, R2 is an alkyl or substituted alkyl group, and X is a thioaryl or substituted thioaryl group.
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IPC分类:
