Patent ID: 7705087
Filing Date: 2010-04-27
Classification: C08G,C08J,C09D

Abstract:
1. Polyurethane/ureas wherein the polyurethane/ureas contain 0.5 to 6% by weight, based on the weight of the polyurethane/ureas, of alkoxysilane groups (calculated as Si, MW 28), which have been incorporated by the reaction of isocyanate groups with a dihydroxy compound containing urea and alkoxysilane groups, said dihydroxy compound corresponding to the formula I wherein X represents the same or different C Y represents a linear or branched alkylene group having 1 to 8 carbon atoms, and Z independently represents organic groups that are inert to isocyanate groups below 100° C., provided that at least one group is an alkoxy group containing from 1 to 4 carbon atoms; and wherein the polyurethane/ureas optionally contain hydrophilic groups and are optionally dispersed in an aqueous medium.