| abstract |
The present invention is selected from the group consisting of water and ethylene, propylene, butylene, isoprene, butadiene, styrene, acrylonitrile, acrylic acid, methacrylic acid, acrylic acid alkyl esters, methacrylic acid alkyl esters, vinyl esters, and vinyl chlorides. In addition to dispersed copolymers consisting of at least two monomers, it also relates to aqueous polymer dispersions comprising comb polymers having side chains bonded to the main chain by ester or ether groups. The aqueous polymer dispersions are particularly suitable for use with hydraulic and potentially hydraulic binders. This aqueous polymer dispersion is extremely efficient and greatly increases physical value and moderately decreases porosity and water absorption properties. |