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US 2004/0176521 A1Published application
Heat-curable fluoropolyether rubber compositions and rubber articles
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsHidenori Koshikawa, Noriyuki Koike
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Abstract
A heat-curable fluoropolyether rubber composition comprising (A) 100 pbw of a straight-chain perfluoropolyether compound having at least two alkenyl groups in a molecule, (B) 1-100 pbw of a reinforcing filler, and (C) 0.1-5 pbw of an organic peroxide is freed from cure inhibition by catalyst poisons, and its cured rubber has improved properties including heat resistance, chemical resistance, solvent resistance, parting property, water repellency, oil repellency and low-temperature properties.
Claims7
A heat-curable fluoropolyether rubber composition comprising
- (A) 100 parts by weight of a straight-chain perfluoropolyether compound having at least two alkenyl groups in a molecule,
- (B) 1 to 100 parts by weight of a reinforcing filler, and
- (C) 0.1 to 5 parts by weight of an organic peroxide.
Dependencies are inferred from the claim text.