| 摘要 |
An endless power transmission belt having(1) a tension section;(2) a cushion section; and(3) a load-carrying section disposed between said tension section and cushion section; and the belt containing an elastomeric composition comprising(a) 100 parts of a rubber derived from(i) 50 to 100 parts by weight of an ethylene alpha olefin elastomer; and(ii) 0 to 50 parts by weight of a rubber selected from the group consisting of silicone rubber, polychloroprene, epichlorohydrin, acrylonitrile rubber, hydrogenated acrylonitrile rubber, zinc salts of unsaturated carboxylic acid ester grafted hydrogenated nitrile butadiene-elastomer, natural rubber, styrene-butadiene rubber, 1,4-trans-polybutadiene, ethylene-vinyl-acetate copolymer, ethylene methacrylate copolymers and terpolymers, chlorinated polyethylene, chlorosulfonated polyethylene, alkylated chloro sulfonated polyethylene, trans-polyoctenamer, polyacrylic rubber, and mixtures thereof;(b) from 1 to 30 parts by weight per 100 parts by weight of total rubber (phr) of a polybutadiene adduct of maleic acid anhydride.
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