Aqueous dispersions and aqueous coating materials, processes for their preparation and their use thereof.

primary dispersions and aqueous coating materials containing solid polymer particles and / or liquid dispersed and / or emulsion and / or composite particles core-shell dispersed solid, with a particle diameter of 500 nm, and may be prepared by radical polymerization microemulsion or miniemulsion of a) at least one olefinically unsaturated monomer and B) at least one different than the olefinically unsaturated monomer (a) olefinically unsaturated monomer of general formula I and R1 R2 C = C R3 R4 (I) wherein R1, R2, R3 and R4 represent independently hydrogen atoms or alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl arylalkyl or arylcycloalkyl radicals, substituted or unsubstituted, with the proviso that at least two of the variables R1, R2, R3 and R4 are arylcycloalkyl aryl, arylalkyl or substituted or non-replaceable two, in particular substituted or unsubstituted aryl groups; in the presence of C) at least one hydrophobic for the copolymer resulting from the starting products (A) and (B) crosslinker.