Patent ID: 8492478

Claim:
A curable perfluoropolyether gel composition, comprising (A) a straight chain fluorine-containing polymer having at least two alkenyl groups per molecule, represented by formula (1): wherein R 1 is independently a vinyl group or an alkyl group containing 1 to 4 carbon atoms, R 2 is an alkylene group containing 1 to 6 carbon atoms, R 3 is independently a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms optionally substituted with fluorine, and Rf 1 is a perfluoroalkylene group or a divalent perfluoropolyether structure-containing group; (B) a polyfluoromonoalkenyl compound containing one alkenyl group per molecule and having a perfluoropolyether structure in its backbone; (C) an organosilicon compound containing at least two hydrogen atoms bonded to the silicon atom per molecule; and (D) a hydrosilylation catalyst.