Use of crosslinked cationic polymers in skin cosmetic and...

Details Use of crosslinked cationic polymers in skin cosmetic and... Use of crosslinked cationic polymers in skin cosmetic and...

2000-06-26

2008-09-09

Hartley, Michael G. (Department: 1618)

Drug, bio-affecting and body treating compositions

Live hair or scalp treating compositions

Polymer containing

C424S047000, C424S078030, C424S078220, C424S078240, C514S937000, C526S264000

Reexamination Certificate

active

07422735

ABSTRACT:
The invention relates to the use of at least one copolymer obtainable by(i) free-radically initiated copolymerization of a monomer mixture comprising(a) 1 to 99.99% by weight of at least one monomer chosen from N-vinylimidazoles and diallylamines optionally in partially or completely quaternized form;(b) 0 to 98.99% by weight of at least one neutral or basic water-soluble monomer which is different form (a);(c) 0 to 50% by weight of at least one unsaturated acid or unsaturated anhydride,(d) 0 to 50% by weight of at least one free-radically copolymerizable monomer which is different from (a), (b) or (c); and(e) 0.01 to 10% by weight of at least one monomer which acts as crosslinker and has at least two ethylenically unsaturated, nonconjugated double bonds; and(ii) subsequent partial or complete quaternization or protonation of the polymer in the case where the monomer (a) is unquaternized or only partially quaternized,as additive for skin cosmetic and dermatological preparations.

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