| 摘要 |
PURPOSE:To withstand a high temperature during the long-time travel by constituting a flexible film with a rubber film made of polychloroprene series, ethylene propylene polymer series, or isobutylene-isoprene rubber to improve its heat resistance and weather resistance. CONSTITUTION:Polychloroprene series or ethylene propylene polymer series is preferable and isobutylene-isoprene rubber or the like is also used for a flexible film (f) to have a rubber film excellent in heat resistance and ozone resistance. On the other hand, a natural rubber-series elastic body exerting low-loss performance is preferable and SBR, CR or the like is also used for the rubber of a vibration absorbing main body to reduce the dynamic spring constant. Accordingly, the vibration isolating rubber of an engine mount can be thoroughly used under a condition of 60 deg.C-80 deg.C, temporarily 100 deg.C-120 deg.C, with the rubber film never broken. |
