PROCESS FOR PRODUCING CATIONICALLY STABILIZED AND WATER-REDISPERSIBLE POLYMER POWDER COMPOSITIONS

摘要

A process for producing cationically stabilized and water-redispersible polymer powder compositions, wherein one or more ethylenically unsaturated monomers, optionally in the presence of an anionic protective colloid and/or of a nonionic emulsifier, is free-radically polymerized in aqueous medium and then dried, characterized in that the resulting aqueous polymer dispersions are dried in the presence of a cationic protective colloid as a drying assistant.