| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyurethane belt with such a small friction coefficient that less noise is generated between the belt and a pulley, in which deterioration of polyurethane is less generated by metal ions even in environments where it gets in contact with metal as in case of carrying coins. SOLUTION: This polyurethane belt comprises a toothed belt 1 of polyurethane in which core wires 3 are embedded in a length direction in a belt main body. The belt main body is composed of polyurethane resin composition blended with carbon nanotubes, so that the friction coefficient is so small because of existence of the carbon nanotubes that less noise is generated between the belt and the pulley. COPYRIGHT: (C)2004,JPO
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