Patent ID: 7829649
Filing Date: 2010-11-09
Classification: C08G,C08L

Abstract:
1. A perfluoropolyether-polyorganosiloxane block copolymer represented by the following formula (1), the block copolymer having a number average molecular weight, reduced to polystyrene, of from 2,000 to 20,000, wherein Rf is a perfluoropolyether block, W1 is a polyorganosiloxane block represented by the following general formula (A) or (B) wherein R Q is a C W2 is an organosiloxane residue having a group represented by the following formula (2) wherein X, R 1 , y, and a are as defined above for the general formulas (A) and (B), and g is an integer of from 1 to 11.