A stable, aqueous cationic hydrogel of, by weight, 1-50% of a crosslinked cationic copolymer of 5-95% vinylpyrrolidone (VP) and 5-95% 3-dimethylaminopropyl(meth)acrylamide (DMAPMA) monomers, a crosslinking agent in an amount of 0.05-1% of said monomers, and water is described. The hydrogel has a pH of about 10 and a Brookfield viscosity of about 650 (Model DV-II+, RV spindle #3, speed 10 rpm); it can increase its viscosity by up to 40.times. at a pH of 3-9 and absorb up to 200.times. its weight of water. The hydrogel also can effectively condition hair even in the presence of an anionic surfactant.

Описан стабилизированный, водяной cationic гидрогель, весом, 1-50% crosslinked cationic сополимера vinylpyrrolidone 5-95% (VP) и 5-95% (DMAPMA) мономеров 3-dimethylaminopropyl(meth)acrylamide, crosslinking веществом в количестве 0.05-1% из сказанных мономеров, и водой. Гидрогель имеет pH около 10 и выкостность Brookfield около 650 (модель DV-II+, шпиндель RV # 3, быстро проходит 10 rpm); он может увеличить свою выкостность до 40.times. на pH 3-9 и поглотите до 200.times. свой вес воды. Гидрогель также может эффективно подготовить волос даже in the presence of анионный сурфактант.

 
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