发明申请
US20080196175A1 Particular Dissymmetrical Cationic Polyazo Compounds, Compositions Comprising Them as Direct Dye, Process For Dyeing Keratin Fibres and Device Therefor
审中-公开
特殊的不对称阳离子多偶氮化合物，包含它们作为直接染料的组合物，染色角蛋白纤维的方法及其装置
- 专利标题： Particular Dissymmetrical Cationic Polyazo Compounds, Compositions Comprising Them as Direct Dye, Process For Dyeing Keratin Fibres and Device Therefor
- 专利标题（中）： 特殊的不对称阳离子多偶氮化合物，包含它们作为直接染料的组合物，染色角蛋白纤维的方法及其装置
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申请号： US11791457申请日： 2005-11-24
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公开(公告)号： US20080196175A1公开(公告)日： 2008-08-21
- 发明人: Andrew Greaves , Herve David
- 申请人： Andrew Greaves , Herve David
- 优先权： FR0452785 20041126
- 国际申请： PCT/EP05/13981 WO 20051124
- 主分类号： A61K8/49
- IPC分类号： A61K8/49 ; C09B44/10 ; C09B44/16 ; A61Q5/10 ; C09B44/12 ; C09B44/14
摘要：
The present invention concerns a new dissymmetrical cationic polyazo compounds of formula (I) Dye1-L-Dye2. The present invention also relates to dye compositions comprising such compounds as direct dye in a medium that is suitable for dyeing keratin fibres, and also to a process for dyeing keratin fibres using this composition and a multi-compartment device. The present invention provides direct dyes with which strong and varied shades that are resistant to external attacking factors such as bad weather and shampooing, for which there is no observation of any problem of change in colour over time.
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