| 摘要 |
<p>The present invention relates to an aqueous binder composition comprising: at least one polymer P with a glass transition temperature Tg in the range from -20 to +60°C in the form of an aqueous polymer dispersion PD obtainable by free-radical emulsion polymerization of at least one ethylenically unsaturated monomer M, and 0.1 to 10% by weight, based on the sum of polymer P and oligomer, of one or more oligomers formed from ethylenically unsaturated monomers and having a mean molecular weight Mw of 1000 to 30 000 g/mol and a glass transition temperature Tg in the range from +60 to +120°C and an acid number in the range from 50 to 350, to a process for preparation thereof, to coating materials comprising them, and to the use of water-soluble oligomers in a mixture with aqueous polymer dispersions in coating materials which lead to coatings with increased shine.</p> |
