RUBBER COMPOSITION

PURPOSE:To obtain a composition suitable as a base for diaphragm, where crosslinked matter is of low compression set and high (rancid) gasoline resistance, by blending partially-hydrogenated unsaturated nitrile-conjugated diene copolymer rubber with epichlorohydrin rubber. CONSTITUTION:The objective...

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Bibliographic Details
Main Author HOTSUTA TOORU
Format Patent
LanguageEnglish
Published 26.07.1985
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:PURPOSE:To obtain a composition suitable as a base for diaphragm, where crosslinked matter is of low compression set and high (rancid) gasoline resistance, by blending partially-hydrogenated unsaturated nitrile-conjugated diene copolymer rubber with epichlorohydrin rubber. CONSTITUTION:The objective composition can be obtained by incorporating (A) 100pts.wt. of a partially-hydrogenated unsaturated nitrile-conjugated diene copolymer rubber with its conjugated diene unit hydrogenated as much as >=50%, preferably, 90-95% hydrogenated acrylonitrile-butadiene copolymer rubber with (B) 25-65pts.wt. of an epichlorohydrin rubber, pref. epichlorohydrin-ethylene oxide-allylalycidyl ether copolymer rubber and, if necessary, (C) filler such as carbon black, polyether-based plasticizer etc. For manufacturing diaphragm, said composition is crosslinked using a peroxide.
Bibliography:Application Number: JP19830249826