VIBRATION-DAMPING RUBBER COMPOSITION AND VIBRATION-DAMPING RUBBER MEMBER
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United States of America Patent
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Issued Date -
Aug 8, 2024
app pub date -
Apr 8, 2024
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Dec 27, 2021
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Provided are a vibration-damping rubber composition and a vibration-damping rubber member which have excellent durability, can attain a reduction in dynamic-to-static modulus ratio, and can exhibit excellent scorch resistance even in wet-heat environments, etc. This vibration-damping rubber composition comprises a diene-based rubber composition comprising the following (A) to (C). (A) A diene-based rubber. (B) Silica having a silanol group density of four groups per nm2 or greater, a BET specific surface area of 13-60 m2/g, and an average particle diameter of 3-10 μm. (C) A silane coupling agent having a sulfide group and a mercapto group in the molecule.
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