| 摘要 |
A process for preparing a copolymer composition A) by free-radical copolymerization of a monomer composition comprising: a) acrylic acid, b) optionally at least one compound, different from a), having a free-radically polymerizable, α,&bgr;-ethylenically unsaturated double bond and at least one anionogenic and/or anionic group per molecule, c) at least one free-radically polymerizable crosslinking compound which comprises at least two α,&bgr;-ethylenically unsaturated double bonds per molecule. The process is performed by precipitation polymerization in the presence of an auxiliary composition H) comprising H1) glycerol monostearate, and H2) at least one compound with an HLB value in the range from 4 to 10, selected from water-insoluble natural waxes, nonionic emulsifiers and mixtures thereof. |
