C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/56 (2006.01)
Patent
CA 2710259
The present invention relates to polymer ic thickener compositions comprising at least one water-swellable crosslinked copolymer, a process for preparing such compositions and their use as a thickener, e.g., in cosmetic, dermatologic, pharmaceutical or veterinary formulations. The water-swellable crosslinked copolymer according to the present invention is prepared from a mixture comprising (a) acrylamide, (b) an acrylamidoalkylsulfonic acid and/or a salt thereof and (c) an amine-based polyfunctional crosslinking agent comprising at least three allylic functions.
La présente invention concerne des compositions d'épaississant polymère comprenant au moins un copolymère réticulé pouvant gonfler dans l'eau, un procédé de préparation de ces compositions et leur utilisation comme épaississant, par exemple, dans des formulations cosmétiques, dermatologiques, pharmaceutiques ou vétérinaires. Le copolymère réticulé pouvant gonfler dans l'eau selon la présente invention est préparé à partir d'un mélange comprenant (a) un acrylamide, (b) un acide acrylamidoalkylsulfonique et/ou un sel de ceux-ci et (c) un agent de réticulation polyfonctionnel à base d'amine comprenant au moins trois fonctions allyliques.
Ridout & Maybee Llp
S.p.c.m. S.a.
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