Use of a water-in-water emulsion polymers in the form of a...

A - Human Necessities – 61 – K

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Details

A61K 8/81 (2006.01) A61Q 5/00 (2006.01) C08F 2/10 (2006.01) C08F 20/00 (2006.01)

Patent

CA 2595692

The invention relates to the use of polymers, optionally in the form of an aqueous dispersion, obtainable by polymerisation of ethylenically unsaturated anionic monomers for modifying the rheology of aqueous or alcoholic or aqueous/alcoholic cosmetic or dermatological compositions. Said polymers are producible by radical emulsion polymerisation of water-soluble inorganic monomers in the aqueous phase in the presence of at least one type of group a) and b) stabilising polymer. The emulsion polymers are particularly suitable for thickeners in water and alcohol-based cosmetic and dermatological preparations.

L'invention concerne l'utilisation de produits issus de la polymérisation de monomères anioniques éthyléniquement insaturés, qui se présentent éventuellement sous la forme d'une dispersion aqueuse, pour modifier la rhéologie de compositions cosmétiques ou dermatologiques aqueuses alcoolisées ou aqueuses/alcoolisées. Ces polymères sont productibles par copolymérisation radicalaire en émulsion de monomères inorganiques hydrosolubles en phase aqueuse, en présence d'au moins un polymère stabilisateur provenant des groupes a) et b). Les produits de polymérisation en émulsion conviennent parfaitement pour épaissir des préparations cosmétiques ou dermatologiques à base d'eau, mais également à base d'alcools.

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