Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2006-06-28
2010-06-22
Choi, Ling-Siu (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S268000
Reexamination Certificate
active
07741394
ABSTRACT:
It is an object of the present invention to provide a rubber composition which has been improved in mechanical properties with maintaining excellent various properties and is favorably used for a fuel cell sealing member, a hard disc drive top cover gasket member and an electric wire connector sealing member. It is another object of the present invention to provide main bodies mounted with the above respective members obtained by the use of the rubber composition. The rubber composition of the invention comprises a specific ethylene/α-olefin
on-conjugated polyene copolymer in which the non-conjugated polyene is a norbornene-based compound, a specific SiH group-containing compound, and if necessary, an organopolysiloxane. Such a rubber composition of the invention is excellent in mechanical properties and can be particularly favorably used for a fuel cell sealing member, a hard disc drive top cover gasket, an electric wire connector sealing member, etc.
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STIC search results.
Supplementary European Search Report mailed May 8, 2009, received in corresponding European Application No. 06767477.0 (5 pgs.).
Hakuta Takashi
Kawasaki Kuniyoshi
Chin Hui
Choi Ling-Siu
Foley & Lardner LLP
Mitsui Chemicals Inc.
NOK Corporation
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