Patent ID: 6297331
Filing Date: 2001-10-02
Classification: C08G,C08L,C09D

Abstract:
A process for preparing an organopolysiloxane of the formula ##STR15##in whichR.sup.1 =identical or different aliphatic or aromatic hydrocarbon groups,R.sup.2 =CH.sub.2 CH.sub.2 O(CR.sup.4 R.sup.5).sub.x OH whereR.sup.4 and R.sup.5 are identical or different groups and are H or a branched or unbranched C.sub.1 -C.sub.12 -alkyl group, and x has a value from 2 to 11,R.sup.3 =R.sup.2 or R.sup.1,a=1 to 50, andb=0 to 500;which comprises subjecting hydrogen functional siloxane of the formula ##STR16##whereR.sup.1 =identical or different aliphatic or aromatic hydrocarbon groups,R.sup.2 =H,R.sup.3 =R.sup.2 or R.sup.1,a=1 to 50, andb=0 to 500;to an addition reaction with alkanediol monovinyl ether of the formula ##STR17##whereR.sup.4 and R.sup.5 are identical or different and are hydrogen or a branched or unbranched C.sub.1 -C.sub.12 -alkyl group, andx has a value of 2 to 11;in the presence of a hydrosilylation catalyst.