Patent ID: 7910633
Filing Date: 2011-03-22
Classification: C08G,C08L

Abstract:
1. A method of forming a liquid composition comprising: a. obtaining an aqueous asphalt mixture; b. obtaining a polyurethane dispersion, said polyurethane dispersion including a polyurethane that is based on an aliphatic polyol backbone based on one or more compounds selected from the group consisting of polytetramethyl ethlene glycol and polycaprolactone; c. mixing together said aqueous asphalt mixture and said polyurethane dispersion, said aqueous asphalt mixture comprising a majority volume percent of said liquid composition, said polyurethane dispersion comprising at least about 0.1 percent by volume of said liquid composition, said aqueous asphalt mixture includes one or more compounds selected from the group consisting of biocide, thickener, surfactant, organic solvent, and defoamer.