Product for keratin-containing fibers comprising at least one specific amphiphilic cationic polymer, and at least one specific amphiphilic anionic polymer

Abstract

Product for treating keratin-containing fibers, especially human hair, comprising, in a cosmetically acceptable carrier: (a) at least one amphiphilic, cationic polymer, respectively comprising at least one structural unit of formulae (I) to (IV), wherein Rand Rare independently a hydrogen atom or a methyl group, X1 and X2 are independently an oxygen atom or an NH group, Aand Aare independently an ethane-1,2-diyl, propane-1,3-diyl or butane-1,4-diyl group, R, R, Rand Rare independently a (C1-C4)-alkyl group, and Ris a (C-C)-alkyl group, and (b) at least one amphiphilic anionic polymer, comprising at least one structural unit of formula (V) and at least one structural unit of formula (VI) wherein Rand Rare independently a hydrogen atom or a methyl group, Ris (C-C)-alkyl group, M+ is a physiologically compatible cation, and Ais a *—(CHCHO)—* group wherein x is a whole number between 5 and 35, a *—(CHCHMeO)—* group wherein y is a whole number between 5 and 35 or a *—(CHCHO)—(CHCHMeO)—* group wherein the sum of x+y is a whole number between 5 and 35, and x and y are higher than zero. The invention also relates to the use of said product for temporary hair styling and for hair care, especially in the form of a hair cream or a hair gel.