Abstract: The present invention relates to a rubber stock for bead wire compounds comprising

Abstract: This invention relates to a tire having at least one component of a silica reinforced rubber composition comprised of an emulsion polymerization derived terpolymer rubber which contain pendant hydroxyl groups, particularly derived from diene hydrocarbon and vinyl aromatic compound monomers, particularly a hydroxyalkyl methacrylate. Preferably the hydroxyalkyl methacrylate is a hydroxypropyl methacrylate (HPMA). Preferably at least one additional elastomer is blended with the terpolymer rubber. The rubber composition is prepared by blending a coupling agent therewith subsequent to the addition said silica reinforcement. Said tire component may be, for example, a tire tread.

Abstract: A pneumatic tire having a rubber component where the rubber in said component is comprised of

Abstract: Runflat tires are generally made by including a stiff insert in the sidewall thereof. This insert should be as stiff as possible to help support the weight of the vehicle to which the tire is mounted in situations where there is a loss of air pressure. During periods of operation after loss of air pressure the stiff insert carries most of the load on the tire which leads to the generation of heat. Heat build-up can then lead to thermal degradation in the insert. A reduction in crosslink density and a change in the distribution of crosslink types is the result of this thermal degradation. This invention is based upon the discovery that thermal degradation in the inserts of runflat tires can be reduced by including a 1,6-bis(N,N′-dibenzylthiocarbamoyldithio)-hexane therein as an antireversion agent.

Abstract: Preparation of an elastomer which contains a dispersion of filler reinforcement by forming a filler reinforcement in-situ within the elastomer host, the resulting elastomer/filler composite and tire having component which contains such reinforced elastomer. The invention includes a rubber composition of at least two elastomers wherein one of said elastomers is a pre-formed composite of elastomer and in-situ formed filler reinforcement. A tire having a component of such rubber composition, particularly a tire tread, is specifically contemplated.

Abstract: Preparation of an elastomer which contains a dispersion of filler reinforcement by forming a filler reinforcement in situ within the elastomer host, the resulting elastomer/filler composite and tire having component which contains such reinforced elastomer. The invention includes a rubber composition of at least two elastomers wherein one of said elastomers is a pre-formed composite of elastomer and in situ formed filler reinforcement. A tire having a component of is such rubber composition, particularly a tire tread, is specifically contemplated.

Abstract: Preparation of an elastomer which contains a dispersion of filler reinforcement by forming a filler reinforcement in-situ within the elastomer host, the resulting elastomer/filler composite and tire having component which contains such reinforced elastomer. The invention includes a rubber composition of at least two elastomers wherein one of said elastomers is a pre-formed composite of elastomer and in-situ formed filler reinforcement. A tire having a component of such rubber composition, particularly a tire tread, is specifically contemplated.