Polyacrylate ester with long-chain alkoxylated hydrocarbonoxy groups and their use in cosmetics and personal grooming

Polyacrylate ester with long-chain alkoxylated hydrocarbonoxy groups obtained by transesterification of an alkyl polyacrylate ester with a polyoxyalkylene monool, wherein the alkyl polyacrylate ester, up to 50% of which may be replaced by the corresponding methacrylate, is obtained by free radical polymerization and the alkyl groups of which contain 1 to 8 carbon atoms and wherein the polyoxyalkylene monool is of the average formula

• R.sup.1 O--(C.sub.n H.sub.2n O--).sub.x H
• wherein
• R.sup.1 can be the same or different in the monool and is an alkyl group with 9 to 30 carbon atoms, an alkenyl group with 8 to 22 carbon atoms or a monoalkyl- or dialkylphenyl group with 6 to 16 carbon atoms per alkyl group, and up to 40% of the R.sup.1 groups may be replaced by alkyl groups with 1 to 4 carbon atoms,
• n has a value of 2, 3 or 4 and an average value of 2.0 to 2.5 in an average molecule and
• x has an average value of 10 to 200,
• in such amounts, that 5 to 70% of the ester groups are transesterified, in the presence of a transesterification catalyst at a temperature of from 70.degree. to 170.degree. C. and, optionally, in the presence of a solvent.