Cross-linked rubber product

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United States of America Patent

PATENT NO 10005895
SERIAL NO

15546616

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A cross-linked rubber product for a fuel seal is obtained by cross-linking a nitrile rubber composition including a nitrile rubber (A) containing 25 to 80% by weight of α,β-ethylenically unsaturated nitrile monomer units (a1), 20 to 75% by weight of conjugated diene monomer units (a2), and 0 to 30% by weight of cationic monomer units and/or monomer units capable of forming a cation (a3), and having a compression set ratio of 20% or less after being compressed in an atmosphere of 100° C. for 70 hours, and an inorganic filler (B) having an aspect ratio of 30 to 2,000. The content of the inorganic filler (B) is from 1 to 200 parts by weight with respect to 100 parts by weight of the nitrile rubber (A). The cross-linked rubber product is obtained by subjecting the nitrile rubber composition to secondary vulcanization at 100 to 150° C. for 1 to 24 hours.

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Patent Owner(s)

  • ZEON CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tsukada, Akira Tokyo, JP 60 651

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