The invention relates to an ethylene cationic polymer comprising at least one primary, secondary or tertiary protonable amine function which is at least partially neutralized by a polymer organic acid neutralizing agent which contains at least one carboxylic, sulphonic and/or phosphonic acid function. Said invention also relates to a cosmetic or pharmaceutical composition comprising said neutralized polymer in a physiologically acceptable medium, in particular, cosmetically or pharmaceutically acceptable medium. A method for cosmetically treating keratinic materials, such as a body of face skin, nails, hairs, eyebrows and/or eyelashes, consisting in applying the inventive cosmetic composition to said keratinic materials is also disclosed.
本发明涉及一种
乙烯阳离子聚合物,它包含至少一个伯、仲或叔质子胺官能团,该官能团至少部分被聚合物有机酸中和剂中和,该聚合物有机酸中和剂包含至少一个
羧酸、
磺酸和/或
膦酸官能团。本发明还涉及一种化妆品或药物组合物,该组合物包含在生理上可接受的介质(尤其是化妆品或药物上可接受的介质)中的所述中和聚合物。本发明还公开了一种对角质材料(如面部皮肤、指甲、毛发、眉毛和/或睫毛)进行美容处理的方法,包括将本发明的化妆品组合物涂抹在所述角质材料上。