Use of a hybrid polymeric material for coating keratinous...

A - Human Necessities – 61 – K

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A61K 8/73 (2006.01) A61Q 5/06 (2006.01) A61Q 19/00 (2006.01)

Patent

CA 2264664

The invention concerns the use for coating keratinous materials of a cross-linked hybrid polymeric material obtainable from an aqueous solution comprising: (a) at least a water soluble polymer comprising at least functional groups capable of forming hydrogen bonds; and (b) at least an organic or mineral ammonium or polyvalent or monovalent metal cation salt; and by physical cross-linkage of said polymer resulting from hydrogen interactions between said polymer functional groups and the water molecules in said hydrated cation hydration sphere, for preparing cosmetic or dermatological compositions. The invention more particularly concerns the use of said coating agent for make-up products in particular make-up foundations, lipsticks, mascara, eye-liners and nail care bases; for capillary formulations in particular for hair styling and/or hair care products or for skin care products.

L'invention porte sur l'utilisation pour le revêtement des matières kératiniques d'un matériau polymérique hybride réticulé susceptible d'être obtenu à partir d'une solution aqueuse comportant: (a) au moins un polymère hydrosoluble comportant au moins des groupes fonctionnels capables de former des liaisons hydrogènes et; (b) au moins un sel organique ou minéral d'ammonium ou de cation métallique monovalent ou polyvalent; et par réticulation physique dudit polymère résultant d'intéractions hydrogènes entre les groupes fonctionnels dudit polymère et les molécules d'eau dans la sphère d'hydratation dudit cation hydraté, pour la préparation de compositions cosmétiques ou dermatologiques. L'invention porte plus particulièrement sur l'utilisation dudit agent de revêtement pour des produits pour le maquillage en particulier des fonds de teints, des rouges à lèvres, des mascaras, des eye- liners et des bases de soins des ongles; pour des formulations capillaires notamment des produits de coiffage et/ou de maintien des cheveux ou bien encore pour des produits pour le soin de la peau.

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