Patent ID: 7129370

Claim:
A production process for a silicon compound represented by formula (1), which comprises subjecting a silicon compound represented by formula (2) to hydrolysis or transesterification in the presence of an acid or basic catalyst, wherein in formula (1), each of seven R 1 is a functional group independently selected from the group consisting of (a) hydrogen, (b) alkyl wherein each hydrogen may be optionally substituted with fluorine and each —CH 2 — group may be optionally replaced with —O—, —CH═CH—, cycloalkylene or cycloalkenylene, (c) substituted or unsubstituted aryl, and (d) substituted or unsubstituted arylalkyl wherein each hydrogen of the alkylene group may be optionally substituted with fluorine and each —CH 2 — group of said alkylene may be optionally replaced with —O— or —CH═CH—; and A 2 is a hydroxyl-terminal orgainc functional group, and in formula (2), each R 1 is the same as R 1 in formula (1), and A 1 is an organic functional group containing an acyloxy group.