POWER TRANSMISSION BELT
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United States of America Patent
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Issued Date -
Aug 29, 2024
app pub date -
May 23, 2022
filing date -
May 24, 2021
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Abstract
Power transmission belts described herein have a nitrile group-containing copolymer rubber that has an acrylonitrile unit, a monomer unit of α,β-ethylenically unsaturated nitrile monomer other than acrylonitrile, and a conjugated diene monomer unit. The nitrile group-containing copolymer rubber has an iodine value of 120 or less a total of the acrylonitrile unit and the monomer unit of α,β-ethylenically unsaturated nitrile monomer other than acrylonitrile is 1 to 50% by weight in the total monomer unit, and a weight ratio of the acrylonitrile unit and the monomer unit of α,β-ethylenically unsaturated nitrile monomer other than acrylonitrile is 10:90 to 90:10.
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