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AssigneeSumitomo Riko Company Limited
InventorsYuto Watanabe, Seiji Kasai, Toyohisa Tohyama
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Provided are a vibration isolation rubber composition and a vibration isolation rubber member, which can suppress a decrease in durability while improving resistance to vulcanization reversion. The vibration isolation rubber composition contains components (A) to (E), and is characterized in that relative to 100 parts by mass of component (A), the content of component (B) is 0.6-5.5 parts by mass, the content of component (C) is 0.45-3.5 parts by mass, the content of component (D) is 0.25-5.5 parts by mass, and the mass ratio [(C)/(D)] of component (C) relative to component (D) is 0.15-5.0. (A) A diene-based rubber. (B) A bismaleimide compound. (C) A sulfenamide-based vulcanization accelerator. (D) A sulfur-based vulcanizing agent. (E) An inorganic filler.
A vibration isolation rubber composition, comprising the following components (A) to (E) and being characterized in that, relative to 100 parts by mass of the component (A), a content of the component (B) is 0.6 to 5.5 parts by mass, a content of the component (C) is 1.5 to 3.5 parts by mass, a content of the component (D) is 0.25 to 5.5 parts by mass, a mass ratio [(C)/(D)] of the component (C) to the component (D) is 0.15 to 5.0, and a mass ratio [(B)/(C)] of the component
Dependencies are inferred from the claim text.