发明授权
- 专利标题: Bridged disazo compounds
- 专利标题(中): 桥接双偶氮化合物
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申请号: US09509575申请日: 2000-03-27
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公开(公告)号: US06365719B1公开(公告)日: 2002-04-02
- 发明人: Friedrich Lehr
- 申请人: Friedrich Lehr
- 优先权: GB9720507 19970922; GB9720508 19970922; GB9725758 19971205
- 主分类号: C09B3310
- IPC分类号: C09B3310
摘要:
Compounds of formula (I) with the meanings of D, R1, R2, X and Y as given in claim 1 can be used as paper dyes or direct dyes or for the preparation of ink-jet inks.