TOOTHED BELT MADE OF RUBBER, AND RUBBER COMPOSITION
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United States of America
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Issued Date -
Dec 23, 2021
app pub date -
Nov 21, 2019
filing date -
Nov 21, 2019
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Abstract
A rubber toothed belt includes a belt main body including a plurality of tooth portions provided at predetermined intervals along a longitudinal direction of the belt and including a first rubber composition, in which the first rubber composition includes a composite polymer including a hydrogenated nitrile rubber and an unsaturated carboxylic acid metal salt in a mass ratio of the former/the later=100/80 to 100/180, and includes, with respect to 100 parts by mass of the composite polymer, 3 parts by mass to 50 parts by mass of a zinc oxide, 3 parts by mass to 50 parts by mass of a non-reinforcing filler, 10 parts by mass or less of a reinforcing filler, 5 parts by mass or less of short fibers, and 1 part by mass to 5 parts by mass of an organic peroxide.
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