| abstract |
Oleophobic and hydrophobic polymer compositions in the form of their aqueous dispersion or in the form of their water-redispersible powder for hydrophobing and oleophobization of building materials containing a) a vinyl chloride-vinylidene chloride-ethylene copolymer and b) from 5 to 30% by weight, based on the copolymer, of one or more protective colloids, such as c) in powder form, from 5 to 30% by weight, based on the total weight of the polymer powder composition, of one or more antiblocking agents, and optionally further additives, characterized in that the vinyl chloride-vinylidene chloride-ethylene copolymer 30 to 60 wt .-% vinyl chloride, 20 to 40 wt .-% vinylidene chloride, 10 to 20 wt .-% of ethylene and optionally 10 to 20 wt. -% of one or more vinyl esters from the group comprising vinyl acetate, 1-methylvinyl acetate, vinyl laurate, vinyl esters of α-branched monocarboxylic acids having 9 to 13 carbon atoms. |