| abstract |
A mixture Ia comprises a mix IIa composed of n a) from 1 to 95% by weight of a solid III, preferably a basic solid III, with a primary particle size of from 5 nm to 20 μm and n b) from 5 to 99% by weight of a polymeric composition IV, obtainable by polymerizing n b1) from 5 to 100% by weight, based on the composition IV, of a condensation product V of n α) at least one compound VI which is capable of reacting with a carboxylic acid or with a sulfonic acid or with a derivative or a mixture of two or more of these, and n β) at least 1 mol per mole of the compound VI of a carboxylic acid or sulfonic acid VII which has at least one functional group capable of free-radical polymerization, or of a derivative thereof or of a mixture of two or more thereof and n b2) from 0 to 95% by weight, based on the composition IV, of another compound VIII with an average molecular weight (number average) of at least 5000 having polyether segments in its main or side chain and n at least one ester of the formula (E1) to (E5) n n n where each of R 1 , R 2 , R 3 and R 4 is identical with or different from the others and, independently of the others, is linear or branched-chain C 1 -C 4 -alkyl (—CH 2 —CH 2 —O) n —CH 3 , where n is from 1 to 3, C 3 -C 6 -cycloalkyl or an aromatic hydrocarbon group which may in turn be substituted, with the proviso that at least one of the groups R 1 , R 2 , R 3 or R 4 is (—CH 2 —CH 2—O) n —CH 3 , where n is from 1 to 3. |