Aqueous polymer dispersions containing alkyldiketenes, methods for the production thereof, and their use
AssigneeBASF SE
InventorsRainer Dyllick-Brenzinger, Roland Ettl, Franca Tiarks, Ulrich Riebeling
Life of this patent
Estimating the term…
Abstract
Alkyldiketene-containing aqueous polymer dispersions which are obtainable by miniemulsion polymerization of hydrophobic monoethylenically unsaturated monomers in the presence of alkyldiketenes, processes for the preparation of such polymer dispersions and the use of the thus obtainable dispersions as sizes for paper or as water repellents for leather, natural and/or manmade fibers and textiles.
Claims37
An alkyldiketene-containing aqueous polymer dispersion, obtained by aqueous emulsion polymerization of at least one hydrophobic monoethylenically unsaturated monomer in the presence of at least one alkyldiketene, wherein the at least one hydrophobic monoethylenically unsaturated monomer and the at least one alkyldiketene have an average particle diameter of 10 to 500 nm.
A process for the preparation of an alkyldiketene-containing aqueous polymer dispersion, comprising aqueous emulsion polymerizing at least one hydrophobic monoethylenically unsaturated monomer in the presence of at least one alkyldiketene, wherein the at least one hydrophobic monoethylenically unsaturated monomer and the at least one alkyldiketene have a particle size of 10 to 500 nm.
Dependencies are inferred from the claim text.