Abstract: A pneumatic tire with a sulfur cured elastomeric tread composition comprised of medium vinyl polybutadiene cis 1,4-polyisoprene rubber and styrene/butadiene copolymer rubber.

Abstract: A pneumatic tire with sulfur cured rubber tread composition containing a medium vinyl polybutadiene rubber and at least one rubber selected from cis 1,4-polyisoprene rubber, styrene/butadiene copolymer rubber and cis 1,3-polybutadiene rubber. The composition also contains both carbon black and clay reinforcement in conjunction with a 3,3'-bis(trimethoxysilylpropyl) polysulfide.

Abstract: Metal to rubber adhesion is improved by metal substrates having a coating thereon such as brass, copper, and the like. The coating is applied by an ion beam sputter deposition or, in the alternative, such a coating is partially removed through ion beam etching. The present invention is particularly useful in tire cord construction, metal reinforced belts and hoses, and the like, since articles made therefrom have superior and unexpected moisture aged rubber-to-metal adhesion properties.

Abstract: Method for preparing a lubricant composition comprised of clay, polydimethylsiloxane of required viscosity range, poly(ethylene glycol and/or propylene glycol) of required molecular weight range and surfactant.

Abstract: A pneumatic rubber tire having an integral innerliner comprising a compounded rubber composition comprised of a sulfur cured blend of a halobutyl rubber and an unsaturated copolymer of propylene oxide and copolymerizable monomer.

Abstract: A method of sizing a filament in the form of a mat of strand filament wound into a roll by immersing the roll in a ketone solvent containing an unsaturated epoxy resin and polyamine curative therefor followed by removing said ketone under vacuum conditions to unblock said polyamine and allowing it to partially cross-link said epoxy.

Abstract: Pneumatic tire having circumferential fabric-reinforced rubber belt positioned between its tread and carcass where the rubber of the belt is comprised of medium vinyl polybutadiene, cis 1,4-polyisoprene and optionally, cis 1,4-polybutadiene. The invention is particularly directed to such tire where the medium vinyl polybutadiene rubber of said belt is a copolymer of 1,3-butadiene and a small amount of divinyl benzene.

Abstract: A composite tread has at least a low hysteresis component and a high hysteresis component therein. The components are geometrically arranged such that upon wear, generally more of the high hysteresis compound is exposed as wear progresses which imparts good traction to the life of the tread.

Abstract: An annular tire tread belt is assembled of uncured resilient material having reinforcing cords. An annular container of resilient material has reinforcing cords extending between annular bead rings at the edges. The container is shaped in a toroidal configuration and the tread belt stuck to the container by a layer of suitable tacky barrier material with sufficient tack to maintain the tread belt in a centered position on the container for engagement with a centered portion of the mold. The barrier material also is sufficiently incompatible with the materials of the container and tread belt to prevent appreciable chemical bonding across the interface during curing of the tread belt. After at least partial curing of the tread belt, the tread belt is detached from the container and is ready for use in a tire.

Abstract: Tire cord fabric is processed by supporting a section of fabric and adjusting the warp cords to hang so that they are evenly distributed in a longitudinal direction. The fabric is then clamped in place and a dilute reactive polyurethane solution is sprayed to wet the cords on both sides of the fabric so that the coating on the cords is extremely thin and acts as a sizing material for the fabric to give it dimensional stability and preserve the interstices of the cords. The fabric is then heated to evaporate the solvent and cause the polyurethane mixture to be at least partially cured and to at least partially cover the cords of the fabric. The treated fabric may be used to reinforce a cast polyurethane tire.

Abstract: Novel rubber compounding ingredients are disclosed. The ingredients, which may be used in a wide variety of rubber compounds having siliceous fillers comprise certain N-substituted melamines which act as silica coupling agents. The melamines bind both to the siliceous filler and to the rubber network to increase the reinforcement effect of the silica. Use of the melamines of the invention reduces the cost of producing the rubber when compared to rubbers containing prior art silica coupling agents.

Abstract: A pneumatic rubber tire, and method of preparation, characterized by having a covulcanized, removable, rubber inner liner adhering to the inner surface of the tire, said inner liner comprised of a sulphur cured rubber admixture of (A) butyl rubber and (B) an ethylene/propylene/nonconjugated diene terpolymer. The information further relates to such pneumatic rubber tire in which its exposed inner surface is provided by removal of said inner liner. The information has a particular utility in providing a pneumatic rubber tire with a clean, exposed, inner surface.

Abstract: A metal to rubber adhesion promoter comprising the reaction product of a phenol and a substituted melamine, said phenol being ##STR1## wherein R.sub.1 through R.sub.4 are selected from the group consisting of hydrogen, cyclic and acyclic alkyl groups having from 1 to 10 carbon atoms, and a substituted melamine having the formula ##STR2## where R.sub.5 through R.sub.10 may be the same or different and are selected from the group consisting of alkyl groups having from 1 to 5 carbon atoms. The reaction product is a resin and is added to the rubber compound prior to cure. The adhesion promoter is useful in the making of tires having steel belts and in other reinforced rubber articles.

Abstract: A lubricant composition for coating a tire curing bladder comprising, in aqueous medium, polydimethylsiloxanes, bentonite clay, polyalkylene glycols surfactants an optionally stabilizers, defoamers and corrosion inhibitors.

Abstract: A safety support system in which an annular safety support of resilient foam material having an outer diameter less than the inner diameter of the tire is positioned around a rim and within the tire. The foam material has closed cells containing gas under pressure for supporting the tire in the deflated condition and expanding in an axial direction to press the bead portions against the bead seats of the rim. The safety support has beads and a fabric reinforced construction at a radially outer wall for controlling expansion beyond the radially outer diameter. A second reinforcing fabric ply may be provided at the radially inner wall for controlling expansion and facilitating field mounting of the safety support.

Abstract: A blend of (I) a thermoplastic material or (II) a rubber polymer with (III) an elastomeric interpolymer, where said interpolymer is prepared by aqueous emulsion polymerizing a monomer mixture comprised of (A) diene, (B) comonomer of selected esters and amides and (C) termonomer selected from (1) vinylic monomers and (2) alkyl esters.

Abstract: Composite of rubber and metal reinforcement where the rubber contains a cyanuric acid derivative and optionally a borate. Cured composite is useful as component for rubber tires, industrial belts and hose.

Abstract: Method of constructing pneumatic tire where at least one of its elements is comprised of a heat-curable rubber composition, an improvement in which such composition is identified with a releasably attached identification tag containing an information-providing ink composition thereon, wherein the ink composition contains a heat activatable blowing agent. The invention further relates to the heat-curable rubber composition so-identified and also to the identification tag itself.

Abstract: A tire which has an outer and an inner layer of compound in the non-skid portion of the tread thereof. The outer layer is composed of a lower rolling resistance compound than the inner layer is composed. The inner layer is composed of a compound which provides better traction than the compound of the outer layer provides.

Abstract: A package comprised of (A) reclaim rubber packaged in (B) a protective film of thermoplastic ethylene/acetate copolymer, the use of such a package for the purpose of compounding additional rubber and such compounded rubber. A method is also provided for compounding rubber using the packaged reclaim rubber of this invention and rubber and compound ingredients for the rubber which are also packaged in the prescribed film.