Patent ID: 6528607
Filing Date: 2003-03-04
Classification: C08G,C08L,C09D

Abstract:
A process for preparing silicone resins which comprises reactingI) siloxanes of the general formula RaSi(ORâ€²)bO(4âˆ’aâˆ’b)/2 â€ƒin which ORâ€² is an alkoxy group with primary or secondary aliphatic alcohols, R is identical or different and is an alkyl group or an aromatic group, a is from 0.1 to 2.0, and b is from 0.1 to 1.0, with II) one or more low molecular mass polyhydric alcohols/polyols and III) one or more resins containing epoxide groups, containing at least two 1,2-epoxide groups per molecule, at a temperature in the range from about 100 to about 160Â° C. with removal of the alcohol HORâ€² to a degree of conversion of from about 20 to about 80% and terminating the reaction by cooling to a temperature