Hair conditioning compositions

A - Human Necessities – 61 – K

Patent

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Details

A61K 8/891 (2006.01) A61K 8/04 (2006.01) A61K 8/19 (2006.01) A61K 8/44 (2006.01) A61K 8/81 (2006.01) A61Q 5/12 (2006.01)

Patent

CA 2242410

The present invention relates to a leave-on hair care composition comprising: (i) from about 0.1 % to about 10 %, by weight, of a cationic cross-linked polymeric conditioning agent comprising the monomer units (A)m (B)n (C)p and a cross-linking agent wherein: (A) is a dialkylaminoalkyl acrylate monomer or a quaternary ammonium or acid addition salt thereof; (B) is a dialkylaminoalkyl methacrylate monomer or a quaternary ammonium or acid addition salt thereof; (C) is a nonionic monomer polymerizable with (A) or (B); m, n, and p are independently zero or greater, but at least one of m or n is one or greater; (ii) from about 0.1 % to about 10 %, by weight, of a salt; and (iii) from about 60 % to about 99.8 %, by weight, of a polar solvent; wherein the weight ratio of said cationic cross-linked polymeric conditioning agent to said salt is from about 1:25 to about 25:1; wherein the viscosity of the composition is from about 10 cP to about 500 cP as measured using a Brookfield Viscometer, Spindel #41, at 25 ~C, at 10 RPM for three minutes.

L'invention concerne une composition destinée à être appliquée sur les cheveux, qui comprend: (i) entre 0,1 et 10 % environ, en poids, d'un polymère cationique réticulé tenant lieu d'agent revitalisant et comprenant les unités de monomères (A)¿m? (B)¿n? (C)¿p? ainsi qu'un agent de réticulation. (A) est un monomère de dialkylaminoalkylacrylate ou un ammonium quaternaire ou un sel d'addition d'acide de l'élément considéré; (B) est un monomère de dialkylaminoalkyl méthacrylate ou un ammonium quaternaire ou un sel d'addition d'acide de l'élément considéré; (C) est un monomère non ionique polymérisable avec (A) ou (B); m, n et p valent, indépendamment, zéro ou plus mais au moins l'un des deux éléments m ou n est égal ou supérieur à un; (ii) entre 0,1 et 10 % environ, en poids, d'un sel; et (iii) entre 60 et 99,8 % environ, en poids, d'un solvant polaire. Il est entendu que le rapport de poids entre le polymère cationique réticulé tenant lieu d'agent revitalisant et le sel sus-mentionné est comprimé entre 1:25 et 25:1 environ, et aussi que la viscosité de la composition oscille environ entre 10 et 500 cPo, telle que mesurée à l'aide d'un viscosimètre Brookfield, Spindel #41, à 25 ·C et à 10 tr/min pendant trois minutes.

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