FIELD: chemistry.
SUBSTANCE: disclosed aqueous dispersion of copolymerisation products containing A) one or more hydroxy-functional copolymerisation products, obtained from the following (wt %): non-hydroxyl containing ester of (meth)acrylic acid and/or vinylaromatic compounds (53.5-87), hydroxy-functional ester of (meth)acrylic acid (2.5-45.9), ionic and/or potentially ionic monomers (0.6-19) capable of radical copolymerisation, as well as, if necessary, other monomers capable of radical copolymerisation which are different from compounds of components a)-c) (0-43.4) and B) at least one hydroxy-functional polycarbonate-polyol as a reactive diluent. Disclosed also is an aqueous coating agent which contains one or more of the disclosed aqueous dispersions of copolymerisation products and at least one cross-linking agent which interacts with hydroxyl groups.
EFFECT: disclosed aqueous dispersions have low solvent content and enable to obtain coatings with high level of resistance of lacquer films, with high scratch resistance and acid resistance.
5 cl, 1 tbl, 12 ex
