Toothed Belt and Manufacturing Method Therefor
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United States of America Patent
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Issued Date -
May 2, 2019
app pub date -
Jun 5, 2017
filing date -
Jun 5, 2017
priority date (Note) -
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Abstract
A toothed belt includes: a belt main body having a tooth portion and a groove portion alternately disposed at a fixed pitch in a longitudinal direction, and an outer portion disposed on the outer surface thereof; and a cord buried on a predetermined pitch line on the outer portion, in which the belt main body includes: a support layer, disposed under the cord and containing a thermoplastic polyurethane material; and a cured polyurethane elastomer in addition to the support layer, and in which the support layer is formed of a mixture of the thermoplastic polyurethane material and the polyurethane elastomer, which are integrally cured.
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