Drive belt

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United States of America Patent

PATENT NO 9664252
APP PUB NO 20150219185A1
SERIAL NO

14688931

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A power transmission belt is used by being wound around a flat pulley so that an outer peripheral surface thereof contacts with the flat pulley. A portion forming the outer peripheral surface is made of a rubber composition including an ethylene-α-olefin elastomer as a rubber component thereof. The dynamic viscoelasticity properties of the rubber composition in a belt length direction satisfy ((a loss tangent tan δ at a temperature of 25° C. and a dynamic strain of 3.0%)/(a storage elastic modulus E′ at a temperature of 25° C. and a dynamic strain 3.0%))×1000≦3.0 MPa−1, and (a storage elastic modulus E′ at a temperature of 25° C. and a dynamic strain of 1.0%)/(a storage elastic modulus E′ at a temperature of 25° C. and a dynamic strain of 3.0%)≦1.30.

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Patent Owner(s)

  • BANDO CHEMICAL INDUSTRIES, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsuda, Hisashi Kobe, JP 55 461

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