| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmission belt capable of improving heat resistance while suppressing reduction of wear resistance. SOLUTION: In this transmission belt, a transmission face is formed by a rubber composition formed by blending carbon black of 50 to 100 weight parts into rubber of 100 weight parts. Ethylene-α-olefin copolymer rubber is used as base rubber of the rubber composition, and the carbon black contains high structure carbon having nitrogen absorption specific surface area of 45 to 80 m<SP>2</SP>/g and DBP oil absorption amount of 120 cm<SP>3</SP>/100 g or more of 20 weight parts or more for rubber of 100 weight parts. COPYRIGHT: (C)2007,JPO&INPIT
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