Patent ID: 8716392
Filing Date: 2014-05-06
Classification: C08G

Abstract:
1. A nonfluorinated polyurethane composition produced by the process comprising (a) reacting a silicon polyol with a first polyisocyanate to produce a first mixture comprising (i) a prepolymer at least one isocyanate group and (ii) unreacted first polyisocyanate, wherein the molar ratio of first polyisocyanate to silicon polyol is 2.085:1 to 4.5:1; (b) reacting the first mixture with one or more organic polyols to produce a second mixture, wherein the molar ratio of first polyisocyanate in step (a) to organic polyol is 1.5:1 to 3:1, wherein at least one organic polyol has an ionizable group, and wherein the ionizable group is a neutral group or a salt thereof; and (c) terminating the reaction after step (b) with water to produce the nonfluorinated polyurethane composition.