Back to results
US 5,348,993 AGranted
Aqueous polymer dispersions
AssigneeBASF SE
InventorsBernd Daeumer, Andree Dragon, Wilhelm F. Beckerle, Gernot Franzmann, Josef Neutzner, Eckehardt Wistuba, Joachim Pakusch, Maximilian Angel
Life of this patent
Estimating the term…
Abstract
Aqueous polymer dispersions contain, as a dispersant, a mixture of an ethylene oxide/propylene oxide copolymer, an ethoxylated alkylphenol and/or an ethoxylated fatty alcohol, an ethoxylated polysaccharide and, if required, as a further component, sulfuric acid half-esterified with an ethoxylated alkylphenol and/or an ethoxylated fatty alcohol.
Claims11
An aqueous polymer dispersion which contains one or more polymers obtained by free radical polymerization and, based on the one or more polymers,
- a) from 0.5 to 3% by weight of at least one polyether (dispersant a) composed of ethylene oxide and propylene oxide,
- b) from 0.5 to 4% by weight of at least one ethoxylated alkylphenol or ethoxylated fatty alcohol (dispersant b),
- c) from 0.5 to 3% by weight of at least one ethoxylated polysaccharide (dispersant c) and
- d) from 0 to 4% by weight of one or more compounds selected from the group consisting of sulfuric half-esters of ethoxylated alkylphenols and ethoxylated fatty alcohols and water-soluble salts thereof (dispersant d).
1 more element
Dependencies are inferred from the claim text.