Use of a polymer dispersion as dust control agent

摘要

The present invention relates to the use of polymer dispersions for dust control, wherein these polymer dispersions can be obtained by radically initiated emulsion polymerisation of the components a to e: a. 2 - 75 % by weight styrene and/or substituted styrene and b. 0 to 75 % by weight acrylic acid C1 - C2 ester and/or methacrylic acid C1 to C12 ester and c. 0 to 50 % by weight acrylonitrile and/or methacrylonitrile and d. 0 to 50 % by weight of at least one further copolymerisable ethylenically unsaturated monomers with one or more C-C double bonds in the presence of e. 10 to 75 % by weight starch and/or modified starch and/or degraded starch and/or degraded modified starch wherein the polymerisation is carried out in water.