Patent ID: 11866579
Assignee: SHIN-ETSU CHEMICAL CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 0:
1. A curable fluoropolyether-based rubber composition comprising:
(A) a linear polyfluoro compound containing at least two alkenyl groups per molecule and having a perfluoropolyether structure in its main chain,
(B) a fluorine-containing organohydrogensiloxane having a monovalent perfluoroalkyl or monovalent perfluorooxyalkyl group or a divalent perfluoroalkylene or divalent perfluorooxyalkylene group and containing at least two silicon-bonded hydrogen atoms (or SiH groups), per molecule, in an amount to give 0.2 to 3 moles of SiH groups in component (B) per mole of alkenyl groups in component (A),
(C) sodium fluoride in an amount of 0.10 to 100 parts by weight per 100 parts by weight of component (A), and
(D) a platinum group metal-based catalyst in an amount to give 0.1 to 2,000 ppm of platinum group metal atom based on the weight of component (A).