Cosmetic, pharmaceutical and dermatological compositions
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United States of America Patent
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Issued Date -
May 25, 2006
app pub date -
Oct 14, 2005
filing date -
Oct 15, 2004
priority date (Note) -
Abandoned
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Abstract
A description is given of cosmetic, dermatological and/or pharmaceutical compositions comprising at least one copolymer A containing a) 1% to 50% by weight of structural units originating from N-vinylcaprolactam, b) 49.99% to 98.99% by weight of repeating structural units of the formula (1) in which R.sup.3 is hydrogen, methyl or ethyl, Z is C.sub.1-C.sub.8 alkylene and X.sup.+ is Li.sup.+, Na.sup.+, K.sup.+, Mg.sup.2+/2, Ca.sup.2+/2, Al.sup.3+/3, NH.sub.4+, monoalkylammonium, dialkylammonium, trialkylammonium or tetraalkylammonium, the alkyl substituents of the ammonium ions being independently of one another (C.sub.1-C.sub.22) alkyl radicals or (C.sub.2-C.sub.10) hydroxyalkyl radicals, or singly to triply ethoxylated ammonium compounds having the same or different degree of ethoxylation, it being possible also for two or more different structural units of the formula (1) to be present in the copolymer, and c) 0.01% to 8% by weight, preferably 0.01% to 5% by weight, of crosslinking structures originating from monomers having at least two olefinic double bonds.
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