Use of polymers based on n-vinyl caprolactam in hair cosmetics

Details Use of polymers based on n-vinyl caprolactam in hair cosmetics Use of polymers based on n-vinyl caprolactam in hair cosmetics

A - Human Necessities

61

K

A61K 8/72 (2006.01) A61K 8/49 (2006.01) A61Q 5/00 (2006.01)

Patent

CA 2546288

The invention relates to the use of polymers in cosmetic preparations. These polymers are comprised of 30-65 % by weight of N-vinyl caprolactam, 35-65 % by weight of a monomer mixture consisting of N-vinyl imidazole and vinyl pyrrolidone, whereby the weight ratio of N-vinyl imidazole to vinyl pyrrolidone ranges from 0.085 to 0.30, and 0-15 % by weight of a nitrogen- containing quaternizable monomer (A), which is different from N-vinyl imidazole, whereby the sum of monomer (A) and N-vinyl imidazole is less than 18 % by weight.

L'invention concerne l'utilisation, dans des préparations cosmétiques, de polymérisats comprenant entre 30 et 65 % en poids de N-vinylcaprolactame ; entre 35 et 65 % en poids d'un mélange monomère à base de N-vinylimidazol et de vinylpyrrolidone, le rapport en poids du N-vinylimidazol à la vinylpyrrolidone se situant entre 0,085 et 0,30 ; entre 0 et 15 % en poids d'un monomère (A) quaternisable, à base d'azote, qui est différent du N-vinylimidazol, la somme du monomère (A) et du N-vinylimidazol étant inférieure à 18 %.

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