Seal member
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United States of America Patent
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Dec 24, 2013
Grant Date -
Jun 30, 2011
app pub date -
Dec 28, 2009
filing date -
Dec 28, 2009
priority date (Note) -
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Abstract
A seal member includes a hydrogenated acrylonitrile-butadiene rubber (HNBR) and carbon nanofibers. The seal member has a number of cycles to fracture of 7000 or more when subjected to a tensile fatigue test at a temperature of 70° C., a maximum tensile stress of 4 N/mm, and a frequency of 1 Hz. The seal member exhibits excellent abrasion resistance.
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