| abstract |
Powder slurries and powder coatings which can be produced in the presence of an emulsifier (A), wherein (1) a liquid component (B) containing a liquid or liquefied constituent of a powder slurry or a powder coating is emulsified in an aqueous medium (C) to give an aqueous emulsion of liquid particles (D), (2) the emulsion is allowed to cool so that a suspension of dimensionally stable particles (D), i.e. the powder slurry, is formed and (3) the dimensionally stable particles (D), i.e. the powder coating, are isolated, with the emulsifier (A) having a hydroxyl number of from 50 to 250 mg KOH/g and being able to be prepared by free-radical copolymerization in an aqueous medium of (a1) hydroxyl-containing, olefinically unsaturated monomers and (a2) olefinically unsaturated monomers selected from the group consisting of (a21) monomers of the general formula: R1R2C=CR3R4, where at least two of the variables are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals; (a22) olefinically unsaturated terpene hydrocarbons; and (a23) dimeric alpha-alkylvinylaromatics; a process for producing them and their use. |