Amphoteric ethyl methacrylate copolymers and use thereof

Details Amphoteric ethyl methacrylate copolymers and use thereof Amphoteric ethyl methacrylate copolymers and use thereof

2005-10-19

2011-10-11

Lipman, Bernard (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S264000, C526S307000, C526S307600, C526S307700, C526S318400, C526S319000

Reexamination Certificate

active

08034888

ABSTRACT:
The present invention relates to amphoteric copolymers which comprise ethyl methacrylate, if appropriate a N-vinyllactam compound, at least one monoethylenically unsaturated carboxylic acid and at least one compound with α,β-ethylenically unsaturated double bond and at least one cationogenic and/or cationic group in copolymerized form, to cosmetic and pharmaceutical compositions which comprise such copolymers, to preparation methods, and to the use of these copolymers.

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