Cationic polymers as thickeners for aqueous and alcoholic...

C - Chemistry – Metallurgy – 08 – F

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C08F 226/06 (2006.01) A61K 8/81 (2006.01) C08F 283/06 (2006.01) C08L 39/04 (2006.01) C08L 51/08 (2006.01)

Patent

CA 2602323

The invention relates to the use of cross-linked polymers that can be obtained by the polymerisation of a mixture containing between 99.99 and 10 wt. % of at least one a,-ethylenically unsaturated compound containing at least one cationogen and/or cationic group per molecule, between 0 and 90 wt. % of at least one of a) different monoethylenically unsaturated compounds containing amide groups, and between 0.01 and 5 wt. % of a cross-linking agent for modifying the rheology of aqueous, alcoholic or aqueous/alcoholic compositions. The invention also relates to cosmetic or pharmaceutical preparations based on water or alcohol, especially in the form of gels, containing said cross-linked polymers.

La présente invention concerne des polymères réticulés obtenus par polymérisation d'un mélange contenant 99,99 à 10 % en poids d'au moins un composé a,?-éthyléniquement insaturé ayant au moins un groupe cationogène et/ou cationique par molécule, 0 à 90 % en poids d'au moins a) un composé de différents composés contenant un groupe amide et monoéthyléniquement insaturés ainsi que 0,01 à 5 % en poids d'un agent de réticulation. L'invention concerne l'utilisation de ces polymères pour modifier la rhéologie de compositions aqueuses, alcooliques ou aqueuses/alcooliques. L'invention concerne enfin des préparations cosmétiques ou pharmaceutiques à base d'eau ou d'alcool et se présentant notamment sous la forme de gels contenant ces polymères réticulés.

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