| abstract |
Compounds of the general formula <IMAGE> are disclosed in which Z is <IMAGE> R1, R2, R3 are alkyl groups with 1 to 22 carbon atoms or alkenyl groups with 2 to 22 carbon atoms, at least one of the R1, R2 or R3 groups having at least 10 carbon atoms, R4, R5, R7 are alkyl groups with 1 to 22 carbon atoms or alkenyl groups with 2 to 22 carbon atoms, R6 is -O- or the NR8 group, R8 being an alkyl or hydroxyalkyl group with 1 to 4 carbon atoms or a hydrogen group, x is 2 to 4, M is a bivalent hydrocarbon group with at least 4 carbon atoms, which has a hydroxyl group and may be interrupted by an oxygen atom, n is a number from 0 to 200, and X(-) is an inorganic or organic anion. The compounds can be prepared by reacting compounds of the general formula <IMAGE> in which Q is a hydrocarbon group with at least 4 carbon atoms, which has an epoxide group and may be interrupted by an oxygen atom, and n is as defined above, with tertiary amines of the general formula <IMAGE> in which R1, R2, R3, R4, R5, R6, R7 and x are defined as above, in such quantitative ratios that at least one tertiary amino group corresponds to each epoxide group. The reaction is carried out in the presence of one acid equivalent or HX, based on the nitrogen atom to be quaternized, and at temperatures of 40 DEG to 120 DEG C. The compounds are useful in cosmetic preparations, especially in preparations for the care of the hair. They improve the combability of the hair and, at the same time, improve the gloss and give permanence to the hairstyle. |