发明授权
US07438728B2 Dissymmetrical diazo compounds comprising 2-pyridinium group and a cationic or non-cationic linker, compositions comprising them, method for coloring, and device
失效
包含2-吡啶鎓基团和阳离子或非阳离子接头的非对称重氮化合物，包含它们的组合物，着色方法和装置
- 专利标题： Dissymmetrical diazo compounds comprising 2-pyridinium group and a cationic or non-cationic linker, compositions comprising them, method for coloring, and device
- 专利标题（中）： 包含2-吡啶鎓基团和阳离子或非阳离子接头的非对称重氮化合物，包含它们的组合物，着色方法和装置
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申请号： US11300432申请日： 2005-12-15
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公开(公告)号： US07438728B2公开(公告)日： 2008-10-21
- 发明人: Hervé David , Andrew Greaves , Nicolas Daubresse
- 申请人： Hervé David , Andrew Greaves , Nicolas Daubresse
- 申请人地址： FR Paris
- 专利权人： L'Oreal S.A.
- 当前专利权人： L'Oreal S.A.
- 当前专利权人地址： FR Paris
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner L.L.P.
- 优先权： FR0453006 20041215
- 主分类号： A61Q5/10
- IPC分类号： A61Q5/10 ; C07D211/02
摘要：
Disclosed herein are dissymmetrical cationic diazo compounds comprising a 2-pyridinium group and a cationic or non-cationic linker. Also disclosed herein are dyeing compositions comprising such compounds as a direct dye in a medium appropriate for the dyeing of keratin fibers, a method for coloring keratin fibers comprising contacting the keratin fibers with such dyeing compositions, and a device comprising a plurality of compartments.
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