AQUEOUS SYNTHETIC RESIN DISPERSIONS

摘要

O.Z. 0050/40710 Aqueous synthetic resin dispersions are obtainable by single-stage emulsion copolymerization of a monomer mixture of a) from 35 to 99.5% by weight of one or more vinyl esters of aliphatic monocarboxylic acids of not more than 6 carbon atoms (monomers A), b) from 0.5 to 10% by weight of one or more monomers of the general formula I (monomers B) I where R1, R2 and R3 independently of one another are each hydrogen or methyl, c) from 0 to 64.5% by weight of one or more of the monomers acrylonitrile, styrene and esters of an .alpha.,.beta.-monoethylenically unsaturated monocarboxylic acid of 2 to 5 carbon atoms and an alkanol of 1 to 8 carbon atoms (monomers C) and d) from 0 to 5% by weight of one or more .alpha.,.beta.-mono- ethylenically unsaturated mono- and/or dicarboxylic acids of 3 to 5 carbon atoms and/or their unsubstituted amides (monomers D), the weights of the monomers A, C and D being chosen within the stated limits so that a polymer composed only of these monomers would have a glass transition temperatuew of -50 to +60.degree.C. These dispersions are suitable as binders for the production of nonwovens from mats.