Nitrile rubber composition, vulcanizable nitrile rubber composition, and vulcanizate
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United States of America Patent
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Aug 23, 2005
Grant Date -
Sep 4, 2003
app pub date -
Apr 27, 2001
filing date -
Apr 28, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vulcanizable nitrile rubber composition comprising 100 parts by weight of a nitrile rubber, 0.1 to 20 parts by weight of a metal silicate and 0.1 to 10 parts by weight of a vulcanizing agent. Vulcanization of this vulcanizable rubber composition gives a vulcanizate exhibiting enhanced heating aging resistance when it is kept in a hot air atmosphere, especially at a high temperature.
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