Aqueous primary dispersions and coating materials, processes for their preparation and their use

Aqueous primary dispersions and coating materials comprising dispersed and / or emulsified, solid and / or liquid polymer particles and / or dispersed solid core-shell particles having a particle diameter of 500 nm preparable by controlled free-radical microemulsion or miniemulsion polymerization of DOLLAR AA) at least one olefinically unsaturated monomer , DOLLAR AB) at least one (from the olefinically unsaturated monomer a) different olefinically unsaturated monomer of the general formula I DOLLAR AR · 1 · R · 2 · C = CR · 3 · R · 4 ·, DOLLAR a in which the radicals R · 1 · , R · 2 · R · 3 · and R * 4 * are each independently of one another are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl with the proviso that at least two of the variables R · 1 · R · 2 · R · 3 · and R * 4 * are substituted or unsubstituted aryl, arylalkyl or Ary lcycloalkylreste, especially substituted or unsubstituted aryl radicals, DOLLAR A and its use.