The invention relates to the cosmetic use, especially for the cosmetic treatment of keratin materials, of amphoteric polysaccharide compounds containing cationic polymer chain(s), which may be obtained by grafting and polymerization of ethylenic monomers of formula (I), Q
−
onto an anionic polysaccharide of formula (II): in the presence of a catalytic system based on potassium permanganate (KMnO
4
) and sulfuric acid (H
2
SO
4
). The invention also relates to compositions comprising at least one cosmetic active agent and at least one of these amphoteric polysaccharide compounds, in a cosmetically acceptable medium.
该发明涉及一种化妆品的使用,特别是用于角蛋白材料的化妆处理,该化妆品包含含有阳离子聚合物链的两性
多糖化合物,该化合物可通过在带有配方(I)的
乙烯单体上进行嫁接和聚合得到,将其接枝到带有配方(II)的阴离子
多糖上:在基于
高锰酸钾(KMnO4)和
硫酸(H2SO4)的催化系统存在的情况下。该发明还涉及包含至少一种化妆品活性剂和至少一种这些两性
多糖化合物的组合物,位于化妆品可接受的介质中。