Abstract: The invention is directed to a pneumatic tire having a rubber tread of a cap/base construction comprising an outer rubber tread cap layer containing an outer running surface and an underlying rubber tread base layer; wherein said tread cap layer comprises at least two circumferential, longitudinal rubber tread cap zones; wherein said tread cap zones individually extend from said tread cap running surface radially inward to said tread base layer; wherein said at least two tread cap zones comprises a first tread cap zone and a second tread cap zone adjacent to the first tread cap zone; the first tread cap zone and the second tread cap zone each independently comprising a vulcanizable rubber composition.

Abstract: A carcass ply for a pneumatic tire in accordance with the present invention includes a plurality of load bearing cords calendered within a polymer matrix and a plurality of gas bleeder cords for moving gas away from an interface of the load bearing cords and the polymer matrix. The plurality of gas bleeder cords also function to conduct electrical charge from a belt structure of the pneumatic tire to a bead portion of the pneumatic tire.

Abstract: The invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, (A) 10 to 40 phr of a polybutadiene rubber having a microstructure comprised of about 96 to about 98 percent cis 1,4-isomeric units, about 1 to about 3 percent trans 1,4-isomeric units and about 0.3 to about 1 percent vinyl 1,2-content; Mn ranging from about 230,000 to about 250,000 with a heterogeneity index ranging from about 1.5/1 to about 2/1, and a Tg ranging from about ?104 to about ?109° C.; (B) 60 to 90 phr of a solution polymerized styrene-butadiene rubber functionalized with an alkoxysilane group and a primary amine group; (C) 60 to 100 phr of silica having a CTAB of between 40 and 525 m2/g, a BET of between 45 and 550 m2/g; and (D) less than 5 phr of carbon black.

Abstract: The invention is directed to a pneumatic tire having a rubber tread of a cap/base construction comprising an outer rubber tread cap layer containing an outer running surface and an underlying rubber tread base layer; wherein said tread cap layer comprises at least two circumferential, longitudinal rubber tread cap zones; wherein said tread cap zones individually extend from said tread cap running surface radially inward to said tread base layer; wherein said at least two tread cap zones comprises a first tread cap zone and a second tread cap zone adjacent to the first tread cap zone; the first tread cap zone and the second tread cap zone each independently comprising a vulcanizable rubber composition.

Abstract: The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising: from 70 to 90 phr of a styrene-butadiene rubber functionalized with an alkoxysilane group and at least one of a primary amine group and thiol group; from 10 to 30 phr of at least one additional diene based elastomer; from 60 to 100 phr of precipitated silica; from 1 to 10 phr of a polyoctenamer; from 5 to 25 phr of a starch/plasticizer composite; and from 10 to 20 phr of a tackifying resin.

Abstract: The invention is directed to a pneumatic tire having a tread including a vulcanizable rubber composition including, expressed as parts by weight per 100 parts by weight of elastomer (phr), (A) 60 to 95 phr of solution-polymerized styrene-butadiene rubber with a bound styrene content of from 20 to 30 percent by weight, a vinyl 1,2 content of from 50 to 70 percent by weight based on the butadiene content, and a Tg of from about ?40° C. to about ?20° C.; (B) 5 to 15 phr of cis-1,4 polybutadiene having a Tg of from ?95° C. to ?105° C.; (C) 10 to 20 phr of 3,4-polyisoprene; (D) 30 to 70 phr of processing oil; (E) 10 to 30 phr of carbon black having an Iodine absorption ranging from 192 to 212 g/kg according to ASTM D-1510 and an oil absorption ranging from 126 to 142 cc/100 g according to ASTM D-2414; (F) 90 to 110 phr of silica; (G) 0.5 to 20 phr of a sulfur containing organosilicon compound; and (H) 10 to 20 phr of resin.