Patent ID: 6979710
Filing Date: 2005-12-27
Classification: C08G,C08K,Y10T

Abstract:
1. A curable fluoropolyether rubber composition comprising (A) a straight-chain fluoropolyether compound having at least two alkenyl groups in a molecule and a perfluoropolyether structure in the backbone, (B) an organosilicon compound having at least two silicon atom-bonded hydrogen atoms in a molecule, (C) a perfluoroparaffin or perfluoroparaffin derivative having the general formula (7) or (8): wherein R is hydrogen, halogen exclusive of fluorine, or a hydrocarbon group of 1 to 30 carbon atoms, x is a number in the range of 10 to 30, y is a number in the range of 6 to 14, each of x and y may be a single number or have a distribution in the range, in powder form which contains at least 80% by weight of a volatile component that volatilizes off when held in a drier at 200° C. for 4 hours, and has a melting point of at least 50° C., and (D) a hydrosilylation catalyst.