Patent ID: 7645815
Filing Date: 2010-01-12
Classification: C08L,C09D

Abstract:
1. A fast-drying aqueous composition comprising one or more hollow core binder of a first polymer having a glass transition temperature (Tg) of 50° C. or more and containing one or more void, the said first polymer being substantially encapsulated by one or more second polymer having a Tg of −30° C. or more, the said hollow core binder having an average particle size of from 200 to 500 nanometers (nm), and the said fast-drying aqueous composition being in one component or two components, wherein, the said two component composition further comprises an absorber component, and, further wherein, the said one component composition further comprises a volatile base in an amount sufficient to raise the pH of the said fast-drying aqueous composition to 7.5 or more, and the said second polymer of the said one component composition is chosen from an anionically stabilized emulsion polymer, a polyamine functional emulsion polymer containing pendant amine functionality, a hydrophobic polyamine functional emulsion polymer, a blend of an emulsion polymer having pendant strong cationic groups and an emulsion polymer having pendant weak acid groups, and mixtures thereof, still further, wherein, when the second polymer of the hollow core binder is an anionically stabilized emulsion polymer, the composition further comprises polyfunctional amine.