VIBRATION-ISOLATING RUBBER COMPOSITION AND RUBBER VIBRATION ISOLATOR USING SAME

摘要

An object of the present invention is to provide a vibration-proof rubber composition excellent in both characteristics of durability and compression set characteristic. A vibration-proof rubber composition includes components (A) to (C) below, wherein an amount of reacted silane coupling agent in the component (B) is 6.5% by weight or more, and an amount of unreacted silane coupling agent is in a range of 0.5 to 2.5% by weight:
(A) diene rubber;
(B) pre-treated silica prepared by surface-treating, with a silane coupling agent, silica having a BET specific surface area in a range of 180 to 230 m 2 /g; and
(C) sulfur.