Patent ID: 9709129
Date: 2017-07-18
CPC Classifications: B29D,F16G

Claim:
1. A transmission belt comprising: a cord embedded in a belt body made of a rubber composition, wherein at least part of the belt body contacting the cord is made of a rubber composition containing ethylene-α-olefin elastomer as a rubber component and formed in such a manner that the rubber component is mixed with silica, carbon black and an α,β-unsaturated fatty acid metallic salt and then is crosslinked using sulfur, wherein a content of the sulfur is 2 to 4 parts by mass with respect to 100 parts by mass of the rubber component, a content of the silica is 30 to 90 parts by mass with respect to 100 parts by mass of the rubber component, a content of the carbon black is 10 to 55 parts by mass with respect to 100 parts by mass of the rubber component and a content of the α,β-unsaturated fatty acid metallic salt is 0.5 to 5 parts by mass with respect to 100 parts by mass of the rubber component, and wherein a sum of the content of the carbon black and the silica is 70 to 100 parts by mass with respect to 100 parts by mass of the rubber component.