发明授权
US5990355A Substituted diaminophenols, process for their preparation, and hair dyes
containing such compounds
失效
取代的二氨基苯酚，其制备方法和含有这些化合物的染发剂
- 专利标题： Substituted diaminophenols, process for their preparation, and hair dyes containing such compounds
- 专利标题（中）： 取代的二氨基苯酚，其制备方法和含有这些化合物的染发剂
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申请号： US943161申请日： 1997-10-03
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公开(公告)号： US5990355A公开(公告)日： 1999-11-23
- 发明人: Mustafa Akram , Wolfgang Wolff , Andreas Bittner , Uwe Kobs
- 申请人： Mustafa Akram , Wolfgang Wolff , Andreas Bittner , Uwe Kobs
- 申请人地址： DEX Hamburg
- 专利权人： Hans Schwarzkopf GmbH & Co. KG.
- 当前专利权人： Hans Schwarzkopf GmbH & Co. KG.
- 当前专利权人地址： DEX Hamburg
- 优先权： DEX4438129 19941027
- 主分类号： A61K8/00
- IPC分类号： A61K8/00 ; A61K8/20 ; A61K8/23 ; A61K8/36 ; A61K8/41 ; A61K8/58 ; A61Q5/10 ; C07C209/38 ; C07C213/02 ; C07C215/80 ; C07F7/18 ; C09B51/00 ; D06P1/32 ; D06P3/08
摘要：
Compounds of the formula (I) and their salts with inorganic and organic acids, ##STR1## in which R.sub.1 is a hydrogen atom or a trimethylsilyl group, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are, independently of each other, a hydrogen atom, a (C.sub.1 -C.sub.4) alkyl group, a hydroxy-(C.sub.2 -C.sub.3) alkyl group, an alkoxy-(C.sub.2 -C.sub.3) group, an amino-(C.sub.2 -C.sub.3) group, or a 2,3-dihydroxypropyl group, and in which R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are not simultaneously hydrogen atoms, and processes for their preparation and use as hair-coloring agents.
公开/授权文献
- US5386426A Narrow bandwidth laser array system 公开/授权日：1995-01-31
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