| abstract |
Aqueous dispersions which are suitable for the production of improved coating compositions for flat substrates, in particular for coated printing supports, from a) polymers A, which serve as binders and may contain hydrophilic groups, and are composed of one or more of the monomers styrene, butadiene, isoprene, acrylonitrile , C1-C12-alkyl esters of acrylic and methacrylic acid, ethylene, vinyl acetate and vinyl chloride, and b) water-soluble polymers B serving as co-binders 1) at least 40 mol% of polymerized units of amides of unsaturated carboxylic acids, vinylpyrrolidone, ethylene oxide, vinyl alcohol and contain allyl alcohol, 2) are present in an amount of 0.5-50% by weight, based on polymer A, and 3) are partially or completely bound to polymer A, the amount of bound polymer B at least 0, 5% by weight of polymer A. |