Patent ID: 8026330

Claim:
An organopolysiloxane represented by the following formula: wherein R 1 is selected from the group consisting of C1-30 alkyl, C1-30 fluoroalkyl, C6-30 aryl, and C6-30 aralkyl groups, R 2 is a group represented by the following formula (2): wherein R 4 is a C2-20 divalent hydrocarbon group which has an oxygen atom or no oxygen atom, each R 5 is, independently, a hydrogen atom, a monovalent cation, or a C1-10 alkyl group, provided that at least one of R 5 's is a hydrogen atom or a monovalent cation, each R 6 is, independently, a hydrogen atom or a C1-6 alkyl group, and R 7 is a hydrogen atom or a C1-6 alkyl group, l is an integer of from 5 to 500, m is an integer of from 0 to 50, n is an integer of from 0 to 50, p is an integer of from 0 to 50, q is an integer of from 0 to 500, r is an integer of from 0 to 50, f and g are integers of from 0 to 3 provided that 1≦f+g, and h is an integer of from 0 to 3.