| 摘要 |
Water-redispersible polymer powder compositions with accelerated-setting action based on homo- or copolymers of one or more monomers of vinyl esters of optionally branched C<SUB>1-15 </SUB>alkylcarboxylic acids, (meth)acrylic esters of C<SUB>1-15 </SUB>alcohols, vinylaromatics, olefins, dienes, and vinyl halides, one or more protective colloids, and optionally antiblocking agent(s), contain one or more setting-accelerants NR<SUB>3</SUB>, R<SUB>2</SUB>N-(CH<SUB>2</SUB>)<SUB>n</SUB>-NR<SUB>2</SUB>, or one or more singly or doubly NH<SUB>2</SUB>-terminated polyalkylene glycols having a C<SUB>1</SUB>-C<SUB>6</SUB>-alkylene group is/are present, where n=from 1 to 4, and where the radicals R are identical or different, and are hydrogen, a C<SUB>1</SUB>-C<SUB>6</SUB>-alkyl radical, or a C<SUB>1</SUB>-C<SUB>6</SUB>-hydroxyalkyl radical, where at least one radical R is a C<SUB>1</SUB>-C<SUB>6</SUB>-hydroxyalkyl radical, and wherein the setting-accelerants may optionally be present in the form of their salts.
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