Using aqueous polymer dispersions, process for their preparation and use in anti-corrosion coatings, particularly

摘要

The present invention relates to the use and method of manufacturing the polymer dispersion and anti-corrosive with good anti-rust performance. The emulsifiers having phosphonate groups and phosphate / or added as a stabilizing agent (carboxylic) acid, the addition of a base, (partially) the polymer dispersion is neutralized prior to polymerization . This polymer dispersion having a low concentration of aggregates when produced on an industrial scale and rust performance is improved as the condensed water test can be obtained DIN50017. Furthermore, the polymer dispersion results in improved stability of anticorrosion primers produced therewith. By using the polymer dispersion, it is possible to prepare a high gloss coating.