VULCANIZABLE RUBBER COMPOSITION

摘要

A vulcanizable rubber composition comprising an ethylenic nitrile-conjugated diene copolymer rubber, a zinc compound, an alpha , beta -ethylenic carboxylic acid, a group 2A metal compound and an organic peroxide. The composition can provide a vulcanized rubber which is excellent in heat and oil resistances and has a high tensile stress or a high tensile strength stably without being affected by the milling condition, thus being useful as, for example, the rubber material of toothed belts.