Invention Grant
US07678157B2 Use of an anionic hydrotrope for the colouring of keratinous fibres, composition comprising it and colouring processes employing it
有权
阴离子水溶助长剂用于角质纤维着色，包含其的组合物和使用它的着色方法
- Patent Title: Use of an anionic hydrotrope for the colouring of keratinous fibres, composition comprising it and colouring processes employing it
- Patent Title (中): 阴离子水溶助长剂用于角质纤维着色，包含其的组合物和使用它的着色方法
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Application No.: US11798940Application Date: 2007-05-17
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Publication No.: US07678157B2Publication Date: 2010-03-16
- Inventor: Maxime De Boni , Alain LaGrange
- Applicant: Maxime De Boni , Alain LaGrange
- Applicant Address: FR Paris
- Assignee: L'Oreal S.A.
- Current Assignee: L'Oreal S.A.
- Current Assignee Address: FR Paris
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- Priority: FR0651870 20060522
- Main IPC: A61Q5/10
- IPC: A61Q5/10
Abstract:
A subject-matter of the present invention is the use, in the coloring of keratinous fibers, of a specific anionic hydrotropic agent of formula: in which X represents CH or N, n represents an integer ranging from 0 to 12, R1 represents COOM or SO3M, R2 represents a hydroxyl or a C1-C4 alkyl, R3 represents hydrogen or a C1-C4 alkyl, R2 and R3 can together form a ring and M represents hydrogen or one or more inorganic cations providing the electrical neutrality of the compound of formula (I). The invention likewise relates to a dyeing composition comprising at least one dye and such an anionic hydrotrope and to coloring processes employing this dyeing composition.
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