| abstract |
Aqueous dispersions of fillers and/or pigments contain a dispersant combination of the following composition: A) 40 to 95 by weight of a water-soluble polymer, B) 0 to 60 by weight of a non-ionic alkylene oxide adduct having an average molecular weight of 200 to 100,000, C) 0 to 60% by weight of compounds of the formulae (I), (II) and/or (III) R1(SO3X)z (I) R1(OSO3X)z (II) R1(OPO3X2)z, (III) in which R1 represents an optionally substituted aliphatic, aromatic or araliphatic radical having 1 to 50 C atoms, z in each case independently of one another represents an integer from 1 to 10 and x represents hydrogen, a monovalent metal ion or an optionally substituted ammonium ion and D) 0 to 60% by weight of a compound of the formula (IV) <IMAGE> (IV) in which Q represents hydrogen, <IMAGE> in which Y in each case independently of one another represents hydrogen, a monovalent metal ion or an optionally substituted ammonium ion, R2 in each case independently of one another represents hydrogen, an optionally substituted alkyl radical having 1 to 12 C atoms or a radical of the type -CH2-COOR3 or -CH2CH2COOR3 and R3 in each case independently of one another represents hydrogen, Y or an optionally substituted alkyl radical having 1 to 25 C atoms, where the sum A) +B) +C) +D) gives 100% by weight and at least one of the components B), C) and D) is different from zero. |