Cosmetic or dermatological composition containing at least one a

Details Cosmetic or dermatological composition containing at least one a Cosmetic or dermatological composition containing at least one a

1997-06-30

1999-04-06

Venkat, Jyothsna

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

424 59, 424 62, 424 64, 424 701, 424 707, 424 708, 514844, 514845, 514846, 514880, 514881, 514944, A61K 748

Patent

active

058914528

ABSTRACT:
The invention relates to a cosmetic or dermatological composition containing at least one active principle precursor capable of releasing an active principle by enzymatic reaction on contact with the Stratum corneum and at least one crosslinked poly(2-acrylamido-2-methylpropanesulphonic acid) polymer neutralized to at least 90% and to its uses. It generally contains, distributed randomly: (a) from 90 to 99.9% by weight of units of formula (1): ##STR1## in which X.sup.+ denotes a cation or a mixture of cations, it being possible for at most 10 mol % of the cations X.sup.+ to be protons H.sup.+ ; and (b) from 0.01 to 10% by weight of crosslinking units resulting from at least one monomer having at least two olefinic double bonds, the proportions by weight being defined with respect to the total weight of the polymer.

REFERENCES:
patent: 5114706 (1992-05-01), Duvel
patent: 5605694 (1997-02-01), Nadaud

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