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
2006-08-01
2008-03-11
Harlan, Robert D. (Department: 1713)
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...
C152S516000, C152S517000, C152S547000
Reexamination Certificate
active
07342064
ABSTRACT:
A rubber composition favorably used for a reinforcing layer of a run flat tire, which have both low exothermic property and high strength.A rubber composition for a tire, comprising 10 to 100 parts by weight of carbon black having a nitrogen adsorbing-specific area of 30 to 100 m2/g and a dibutyl phthalate oil absorption amount of at least 50 ml/100 g and at least 2 parts by weight of sulfur or a sulfur compound based on 100 parts by weight of a rubber component containing 10 to 70% by weight of a butadiene rubber obtained by copolymerizing a compound represented by the formula (1):(wherein R1represents an amino group, an alkoxy group, a silyloxy group, an acetal group, a carboxyl group, a mercapto group or derivatives thereof).
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Birch & Stewart Kolasch & Birch, LLP
Harlan Robert D.
Sumitomo Rubber Industries Ltd.
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