| abstract |
Water-soluble or water-swellable polymers, preferably with a particle size not larger than 10 μm, which, in addition to 0.01 to 5% by weight of crosslinking structures which have resulted from monomers with at least two olefinic double bonds, have a statistical distribution of 1 to 50% by weight. the recurring structural unit (1) and 49.99 to 98.99% by weight of the recurring structural unit (2), wherein R 1 , R 2 and R 3 independently represent a hydrogen atom or a methyl group and Z represents a C 1 -C 4 alkylene group.n n n These polymers serve as thickeners, preferably in cosmetic ornpharmaceutical preparations. |