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
2008-05-20
2008-05-20
Sanders, Kriellion A (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...
C524S493000, C524S368000
Reexamination Certificate
active
10726560
ABSTRACT:
The present invention provides a rubber composition for a tire tread comprising 100 parts by weight of a rubber component containing at least 5% by weight of natural rubber graft-copolymerized with an organic compound having an unsaturated bond andlor epoxidized natural rubber, and 5 to 150 parts by weight of carbon black and!or silica with a nitrogen-absorbing specific surface are of 100 to 300m2/g.
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Muraoka Kiyoshige
Yagi Noriko
Birch & Stewart Kolasch & Birch, LLP
Sanders Kriellion A
Sumitomo Rubber Industries Ltd.
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