Patent ID: 7687654
Filing Date: 2010-03-30
Classification: C08G

Abstract:
1. A method for preparing a silanediol of the general formula (II) wherein R 1 is identical or different and is a straight-chain, branched, or cyclic, optionally substituted, C 1 -C 12 alkyl group or a group that can be polymerized photochemically and/or thermally via an organic group by radical polymerization or cationic polymerization, the method comprising the step of: performing a controlled hydrolysis by maintaining an acidic pH value with a lower limit of the acidic pH value at pH 3 of a compound of the general formula (III) wherein R 1 has the meaning as provided for formula (II) and wherein R 3 is a C 1 -C 6 alkyl group; wherein the hydrolysis of the OR