Patent ID: 7781505
Filing Date: 2010-08-24
Classification: C08G,C08K

Abstract:
1. A process for stabilising the viscosity of an amino-functional siloxane polymer of the general formula wherein each R represents a hydrocarbon group or a substituted hydrocarbon group with the proviso that at least one R per molecule represents aminoalkyl, each X represents a group R, a hydroxyl group or an alkoxy group with the proviso that at least one X per molecule represents a hydroxyl group, b is 1, 2 or 3, and n and m are integers with a value such that the viscosity of the siloxane polymer at 25° C. is in the range from 1 to 100,000 mPa·s wherein a dialkoxydialkylsilane is added to the amino-functional siloxane polymer or to the reagents (A) and/or (B) from which the amino-functional siloxane polymer is produced before or during the reaction of (A) and (B).