A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 8/81 (2006.01) A61K 8/34 (2006.01) A61K 8/41 (2006.01) A61Q 5/10 (2006.01)
Patent
CA 2214022
The invention concerns an oxidation dye composition for keratin fibres, specifically human keratin fibres such as hair. It includes, in a medium appropriate for dyeing, at least one precursor of oxidation dye and possibly one or more coupling agents. It is characterized by the fact that it also includes an anionic amphiphilic polymer having at least one hydrophilic group which is an unsaturated carboxylic acid (olefin) and at least one hydrophobic group which must be an alkyl ester (C10-C30) of unsaturated carboxylic acid. The invention also concerns the dyeing procedures and devices for using the composition.
L'invention concerne une composition de teinture d'oxydation pour fibres kératiniques, en particulier pour fibres kératiniques humaines telles que les cheveux, comprenant, dans un milieu approprié pour la teinture, au moins un précurseur de colorant d'oxydation et éventuellement un ou plusieurs coupleurs, et qui est caractérisée par le fait qu'elle comprend en outre un polymère amphiphile anionique comportant au moins un motif hydrophile de type acide carboxylique insaturé oléfinique, et au moins un motif hydrophobe exclusivement de type ester d'alkyl (C10-C30) d'acide carboxylique insaturé. L'invention concerne également les procédés et dispositifs de teinture mettant en oeuvre ladite composition d'oxydation.
Boudy Francoise
de La Mettrie Roland
L'oreal
Robic
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