Cosmetic composition based upon chitosan and ampholytic copolymerizates, as well as new chitosan/polyampholyte salts

摘要

A cosmetic composition is disclosed for the treatment of hair or skin, based upon 0.05 to 10% by weight of chitosan, and characterized by a content of 0.05 to 20% by weight of an ampholytic copolymerizate of formula (I) ##STR1## wherein m=0.5 to 0.9, n=0.1 to 0.5, m+n=1 and p being such that the ampholytic copolymerizate has a molecular weight of from 1,000 to 3,000,000.PPwherein m=0.1 to 0.9 and n=0.5 to 0.9. The composition provides clear, smooth films, which are neither sticky in moist climate, nor brittle in dry climate. Also disclosed are new chitosan/polyampholyte salts, obtained by reaction of chitosan with an ampholytic copolymerizate of formula (I).