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
2006-03-14
2006-03-14
Szekely, Peter (Department: 1714)
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...
C473S520000, C473S524000, C523S136000, C523S137000, C524S439000
Reexamination Certificate
active
07012111
ABSTRACT:
A high specific-gravity EPDM composition consisting of a mixture of EPDM containing diene at less than 4.5 wt % and ethylene at not less than 58 wt % nor more than 80 wt % and having a Mooney viscosity ML1+4not less than 50 nor more than 170 at 125° C. and a powdery material, containing powder whose specific gravity is not less than 12 as a main component thereof, added to the EPDM at not less than 80 wt % nor more than 97.5 wt % of a whole amount of the high specific-gravity EPDM composition.
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Kanemitsu Yumi
Kikuhara Shinji
Mizoguchi Tetsuo
Sakaki Toshiaki
Sakamaki Toshinori
Birch & Stewart Kolasch & Birch, LLP
Sumitomo Electric Industries Ltd.
Sumitomo Rubber Industries Ltd.
Szekely Peter
LandOfFree
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