Abstract: The invention relates to treatment of a pre-hydrophobated precipitated silica in situ within a rubber composition. The invention relates to preparation of treated precipitated silica by treatment of pre-hydrophobated precipitated silica in situ within a rubber composition with a bis(3-trialkoxysilylalkyl) polysulfide. The invention further comprises the resultant rubber composition and a tire having a component thereof.

Abstract: This invention relates to preparation of precipitated silica-containing EPDM based rubber compositions and their use as components of articles of manufacture such as, for example, tires and industrial products. Such preparation relies upon phase mixing of EPDM based rubber compositions which contain particulate reinforcement, such as for example precipitated silica, which may optionally include exfoliated clay reinforcement, to create an enhanced EPDM rubber composition. In one aspect, the invention relates to a pneumatic rubber tire with a visible outer sidewall rubber layer comprised of such rubber composition.

Abstract: The present invention relates to a tire having a rubber tread or rubber layered rubber tread where the rubber tread or rubber tread layers contain a dispersion of polyester phthalate within and on the surface thereof to promote a hydrophilic property for the surface. In one embodiment such promoted hydrophilic property is to promote expelling of water borne mud or snow from within the tread grooves.

Abstract: The invention relates to a pneumatic tire having a cap/base configuration comprised of an outer tread cap rubber layer, with a tread running surface, and an underlying tread base rubber layer, where the base rubber layer contains syndiotactic polybutadiene with a diverse blend of carbon blacks.

Abstract: The invention relates to a tire having a rubber component which contains short fiber reinforcement with a compatabilizer for the fiber reinforcement. Desirably said short fiber reinforcement is an aramid pulp. Desirably said compatabilizer is an epoxy functionalized natural rubber.

Abstract: The invention relates to a pneumatic tire with a component containing syndiotactic polybutadiene. The invention particularly relates to a tire with a tread configured with an outer cap rubber layer and an internal underlying rubber layer where the underlying rubber layer is comprised of such syndiotactic polybutadiene-containing rubber composition or a tire with a sidewall apex of such syndiotactic polybutadiene-containing rubber composition.

Abstract: The invention relates to a pneumatic tire having a cap/base configuration comprised of an outer tread cap rubber layer, with a tread running surface, and an underlying tread base rubber layer, where the base rubber layer contains syndiotactic polybutadiene with a diverse blend of carbon blacks.

Abstract: Pneumatic rubber tire intended for heavy duty service having a cap/base configured tread with a silica-containing specialized cis 1,4-polybutadiene rubber-rich tread cap rubber layer.

Abstract: The invention relates to a tire having a rubber tread comprised of a circumferential outer cap rubber layer which contains a tread running surface and an underlying undertread layer of softer rubber than said outer tread cap rubber layer wherein said undertread layer rubber composition contains short fiber reinforcement.

Abstract: This invention relates to a silica reinforcement-containing rubber composition which contains a functionalized polybutadiene rubber to promote a relatively low hysteretic loss to thereby enhance its desirability for tire sidewall and subtread applications in a sense of advantageously promoting reduced tire rolling resistance without significantly compromising various other desirable tire performance parameters.

Abstract: The invention relates to a tire having a rubber component which contains short fiber reinforcement with a compatabilizer for the fiber reinforcement. Desirably said short fiber reinforcement is an aramid pulp. Desirably said compatabilizer is an epoxy functionalized natural rubber.

Abstract: Pneumatic rubber tire intended for heavy duty service having a cap/base configured tread with a silica-containing specialized cis 1,4-polybutadiene rubber-rich tread cap rubber layer.

Abstract: Pneumatic rubber tire intended for heavy duty service having a cap/base configured tread with a silica-containing specialized cis 1,4-polybutadiene rubber-rich tread cap rubber layer.

Abstract: The present invention relates to a pneumatic rubber tire having an integral innerliner of a sulfur cured rubber composition. The innerliner rubber composition is comprised of at least one elastomer selected from bromobutyl rubber and chlorobutyl rubber which also contains a dispersion therein of ethylene vinyl alcohol polymer.

Abstract: The invention relates to a tire having a rubber component which contains short fiber reinforcement with a compatabilizer for the fiber reinforcement. Desirably said short fiber reinforcement is an aramid pulp. Desirably said compatabilizer is an epoxy functionalized natural rubber.

Abstract: A tire having a tread includes an outer tread layer and an inner tread layer. The inner tread layer includes one of a first elastomeric compound and a second elastomeric compound. The outer tread layer includes the other of the first and second elastomeric compounds. The second elastomeric compound has a lower rolling resistance and greater resistance to treadwear than the first elastomeric compound. The inner tread layer increases in thickness across at least a widthwise portion of the outer tread layer with a maximum thickness of one of the inner tread layer and the outer tread layer occurring near at least one of a first shoulder and a second shoulder of the tread. As the tread wears, the inner tread layer defines a greater proportion of a running surface of the tread.

Abstract: The invention relates to preparation and use of a silica reinforced rubber composition. Such rubber composition may be used, for example, for a truck tire tread expected to be exposed to heavy load duty.

Abstract: The invention relates to functionalized polysulfide silica coupling agents and silica reinforced rubber compositions. Such rubber composition may be used, for example, for tire components such as, for example, tire treads.

Abstract: A method of producing a tire including mixing in a non-productive phase at least one elastomer with a polyamide having a melting temperature of less than 180° C. The polyamide is allowed to heat to at least its melting temperature. During the productive phase, at least one curing agent is added to the elastomeric composition. The curing agent may be a sulfur containing curing agent and/or a non-sulfur containing curing agent. The elastomeric composition may optionally include a crystalline EPDM elastomer. The resulting compositions may then be formed into a tire component which may be built into a tire and cured.

Abstract: Pneumatic rubber tire with a component comprised of a silica reinforced rubber composition comprised of specialized polybutadiene rubber, functionalized styrene/butadiene elastomer and cis 1,4-polyisoprene rubber.