| abstract |
PURPOSE: A composition, consisting of a specific acrylonitrile-conjugated diene based copolymeric rubber and a vulcanizing agent of a peroxide, capable of curing with a strongly oxidizing substance produced in ignition distributing boards, etc., and capable of being diaphragms, etc. having improved oxidation resistance without inhibiting the operation. n CONSTITUTION: A composition consisting of a rubber component consisting essentially of acrylonitrile-conjugated diene based copolymeric rubber in which at least 40% conjugated diene unit parts are hydrogenated and a vulcanizing agent consisting of a peroxide. Acrylonitrile-butadiene rubber is used as the above- mentioned rubber. 2W8pts.wt., based on 100pts.wt. rubber component, peroxide is used. The above-mentioned rubber composition is molded in parts, e.g. diaphragms, seal bellows and hoses used in fuel apparatus systems, etc., and used for pressure type ignition time adjusting apparatuses. n COPYRIGHT: (C)1986,JPO&Japio |