Patent ID: 8252300

Claim:
A process of thickening a water- and/or oil based hair conditioner composition by adding a copolymer consisting of the components (a) 40-90 wt-% of a cationic monomer of formula (I), wherein R 1 and R 2 are hydrogen, R 3 , R 4 and R 5 are methyl, n is 1, 2 or 3, and Y is a counterion, and (b) 10-40 wt-% of a monomer of formula (II) wherein R 6 signifies hydrogen, R 7 signifies hydrogen, and R 8 and R 9 are methyl, and (c) at least one cross-linking agent, which contains at least two ethylenically unsaturated moieties to the hair conditioner composition.