Patent ID: 11945902
Assignee: ROHM AND HAAS COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A two-component polyurethane composition comprising,
(A) an aqueous dispersion comprising an emulsion polymer and a surfactant selected from the group consisting of a sulphate surfactant, a sulfonate surfactant containing no carboxyl or carboxylate group, or mixtures thereof; wherein the emulsion polymer with a weight average molecular weight of 70,000 g/mol or less comprises, by weight based on the weight of the emulsion polymer,
greater than 0.25% of structural units of a phosphorous-containing acid monomer and/or a salt thereof, greater than 15% of structural units of a hydroxy-functional alkyl (meth)acrylate, structural units of a monoethylenically unsaturated nonionic monomer, and from zero to 10% of structural units of an additional acid monomer and/or a salt thereof; and
(B) a water-dispersible polyisocyanate.