Patent ID: 8288498

Claim:
A precursor for a sugar-alcohol-modified organopolysiloxane represented by formula (1): wherein R 1 represents a hydrocarbon group having from 1 to 8 carbon atoms; X is a group represented by formula (2); Y represents â€”R 4 O(AO)nR 5 in which AO is an oxyalkylene group having from 2 to 4 carbon atoms, R 4 is a divalent hydrocarbon group having from 3 to 5 carbon atoms, R 5 is one of a hydrogen atom, a hydrocarbon group having from 1 to 24 carbon atoms and an acyl group having from 2 to 24 carbon atoms, and n is from 1 to 100; R 2 is one of R 1 , X and Y; and a is from 0 to 700, b is from 0 to 100, and c is from 0 to 50; provided that when b is 0, at least one of the R 2 s is X wherein R 3 is a divalent hydrocarbon group having from 3 to 5 carbon atoms; and d is from 1 to 2, the precursor being represented by formula (3): wherein R 6 represents a hydrocarbon group having from 1 to 8 carbon atoms; V is a group represented by formula (4); W represents â€”R 11 O(AO)mR 12 in which AO is an oxyalkylene group having from 2 to 4 carbon atoms, R 11 is a divalent hydrocarbon group having from 3 to 5 carbon atoms, R 12 is one of a hydrogen atom, a hydrocarbon group having from 1 to 24 carbon atoms and an acyl group having from 2 to 24 carbon atoms, and m is from 1 to 100; R 7 is one of R 6 , V and W; and e is from 0 to 700, f is from 0 to 100, and g is from 0 to 50; provided that when f is 0, at least one of the R 7 s is V wherein R 8 is a divalent hydrocarbon group having from 3 to 5 carbon atoms; R 9 and R 10 each represent a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms; and h is from 1 to 2; provided that at least one of the R 9 s and the R 10 is an alkyl group having from 1 to 4 carbon atoms.