| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vibration insulation rubber composition improving creep resistance while keeping tensile physical properties and low dynamic-to-static modulus ratio after heat aging; and to provide vibration insulation rubber provided by vulcanizing the rubber composition. <P>SOLUTION: There is provided a vibration insulation rubber composition comprising natural rubber (NR) and ethylene-propylene-diene rubber (EPDM) as rubber ingredients at a mass ratio of NR/EPDM=70/30 to 45/55, also, containing as a vulcanizer, only a peroxide, and containing (A) zinc acrylate or zinc methacrylate and (B) triallyl isocyanurate or trimethallyl isocyanurate as co-crosslinking agents. <P>COPYRIGHT: (C)2012,JPO&INPIT |
