Abstract: A motorcycle tire particularly for racing motorcycles which has a tread, a pair of beads, and a carcass comprising a single bias ply extending to and around the beads, and a single breaker ply whose width is at least about 85 percent of the tread width and the ends of the single bias ply overlying 50 to 90 percent of the breaker ply. In its uninflated state, the cross-section of the tire suggests a triangle.

Abstract: Ureas such as 1,3-bis(morpholinothio)-imidazolidinone are used to affect the vulcanization characteristics of sulfur vulcanizable polymers by increasing the state of vulcanization and improving scorch resistance and/or increasing the rate of vulcanization.

Abstract: Method and apparatus for wrapping a cord or wire in a toroidal helix about a liner to form a closed torus carcass. An extruder, die, and diehead provide means for extruding a liner having a horseshoe-shaped profile. Circumferential edges of the liner are joined with a preformed assembly of bead rings and a spacer ring. Cord or wire is wound snugly about an array of control fingers and then slipped off the fingers as successive tensionless turns about the liner and rings as the latter rotate through a winding plane in which a spool supplying cord or wire orbits. No rigid core is required. An endless inflatable tube can be used in lieu of the extruded liner.

Abstract: A mold release agent comprising metallic soaps of the fatty acids in combination with 0.03 to one percent of a polyurethane catalyst selected from secondary and tertiary amines and organic tin compounds.

Abstract: A belt drive and belt and pulleys therefor in which a toothed power transmission belt operates in conjunction with toothed pulleys. The dimensional relationship between the belt teeth and pulley teeth is such that in the longitudinal extent of the belt between the pulleys the height of the belt teeth is greater than the height of the pulley teeth or depth of the pulley grooves while as the belt travels around the pulleys the extreme outwardly facing portions or outer extremities of the belt teeth contact the bottom of the pulley grooves and at the same time the belt teeth are compressed to reduce their height so that the extreme radially outwardly facing portions or outer extremities of the pulley teeth come in contact with the bottoms of the belt grooves. The invention is particularly useful in a synchronous or positive drive system for increasing belt life by relieving stresses on the tensile member in the area between teeth of a positive drive power transmission belt.

Abstract: A tackifier composition comprised of a tackifying resin and a selected oily polymer distillation cut as well as an admixture thereof with selected rubbery polymers to achieve an adhesive composition. Said tackifier composition is comprised of both a tackifying resin derived from the polymerization of a mixture of at least one olefin and at least one diolefin as well as an oily polymer distillation cut at a temperature in the range of about 190.degree. C to about 250.degree. C of the product of polymerizing a monomer mixture comprised primarily of piperylene and selected monoolefins with the optional addition of dicyclopentadiene and .alpha.-methyl styrene.

Abstract: Laminates with staining rubber stocks can be made by adhering to the staining rubber stocks a nondiscoloring and nonstaining polyurethane comprising the reaction product of a mol of polyester of 1800 to 3500 molecular weight, 1.3 to 3.2 mols of a cycloaliphatic or an aliphatic diisocyanate and curing with 0.2 to 2.0 mols of an organic diamine or polyol of the nonstaining type, the polyester being polyhexanediol-ortho-phthalate or a blend of 50 to 80 percent of polyhexanediol-ortho-phthalate and 50 to 20 percent of polyhexanediol isophthalate.

Abstract: There is disclosed a method which comprises polymerizing a cycloolefin selected from the group consisting of cyclooctene and 1,5-cyclooctadiene by subjecting said cycloolefin to a catalyst comprising (A) a tungsten halide salt of the general formula R.sub.m.sub.-n WX.sub.n wherein X represents chlorine or bromine and R is selected from the group consisting of alkoxy, haloalkoxy, aryloxy, alkaryloxy, and acetyl acetonyl radicals containing up to 20 carbon atoms; m being 6 when X= Cl or 5 when X = Br; and wherein n may be 3 to 6 inclusive when X = Cl or 3 to 5 inclusive when X = Br and (B) an organoaluminum compound of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.

Abstract: Cured polyurethane composition characterized by resistance to hydrolysis degradation prepared by reacting a polyurethane reaction mixture containing sufficient diamine curative in the presence of an excess of an epoxy resin.

Abstract: An adhesive composite which comprises an admixture of at least one of natural rubber and synthetic rubbers with a tackifying resin containing carbon-to-carbon unsaturation therein prepared by reacting in the presence of an aliphatic solvent and a catalyst selected from aluminum chloride and ethyl aluminum dichloride a monomer mixture comprised of about 60 to about 75 weight percent of a selected diolefin/olefin mixture and correspondingly about 40 to about 25 weight percent .alpha.-methyl styrene. Said adhesive composite has particular utility for use as a pressure sensitive adhesive.

Abstract: A lubricant for use with a pneumatic tire wheel assembly containing a run-flat device to permit the tire to run at least 50 miles at 50 miles per hour in the deflated condition, the lubricant comprising a mixture of 2 to 60 parts of fatty acid having from 12 to 24 carbon atoms, 0 to 45 parts metal soap of a fatty acid having from 12 to 24 carbon atoms and 40 to 92 parts of a carrier such as water or a polyol having a carbon to oxygen ratio less than 4 to 1.

Abstract: A pneumatic tire comprising a carrying case and a removable tread ring having an armor member resistant to tension in the longitudinal direction of said tread ring, said tread ring containing a layer of see-through elastomer covering the inside of the armor, a nondiscoloring polyurethane being the preferred see-through elastomer.

Abstract: There is disclosed an improved dehydrogenation catalysts prepared from mixtures of WO.sub.3 and V.sub.2 O.sub.5 ; mixtures of MoO.sub.3 and V.sub.2 O.sub.5 and mixtures of Cr.sub.2 O.sub.3 or CrO.sub.3 and V.sub.2 O.sub.5 which are heated to temperatures to melt the oxides to form W(VO.sub.4).sub.2, Mo(VO.sub.4).sub.2 and CrVO.sub.4 which are then treated with a reductant to form the active dehydrogenation catalytic species, the methods for the preparation of these catalysts and to the improved dehydrogenation processes which can be effected when dehydrogenatable hydrocarbons are in contact with these catalysts.

Abstract: A tire mold having two "half" molds each including a side wall and a tread molding portion and a center ring having a tread molding portion for molding one third or less of the total width of the tire tread. The center ring is divided into eight sections each hinged to one of the half molds to swing open and outward of interfering portions of the tread pattern, being opened solely by the movement of the tire as it is lifted from the mold. No auxiliary mechanism for driving the sections is used or needed, and the mold is opened and closed in the same manner as the usual two piece tire mold. The foregoing abstract is not to be taken as limiting the invention of this application, and in order to understand the full nature and extent of the technical disclosure of this application, reference must be made to the accompanying drawing and the following detailed description.

Abstract: This invention relates to a method of making polymeric materials having isocyanate reactive groups by polymerizing conjugated diolefins and other olefins with a lithium catalyst in the presence of an ether consisting of diethyl ether, dimethoxy ethane and tetrahydrofuran, then reacting the lithium polymeric adduct with a functionality imparting compound such as carbon dioxide, ethylene oxide, propylene oxide, aldehydes, ketones and carbon disulfide.

Abstract: A tire for off-the-road vehicles. The tire is designed for a removable tread, or a lugged, metal traction band. A pair of detachable resilient shields are maintained adjacent the upper sidewalls of the tire to protect this critical area of the tire from punctures.

Abstract: The bonding of tire cord to rubber is improved by first treating the surface of the tire cord with a solvent solution of a polyisocyanate in essentially small amounts and then treating the cord with an adhesive comprising a phenol/aldehyde resin, a phenol aldehyde resin blocked polyisocyanate and a rubber latex.

Abstract: An apparatus for splicing two rolls of tire cord fabric in axially aligned relation. A plurality of splicing rods are forced through overlapped ends of the rolls from opposing longitudinal sides of the fabric. The splicing rods are guided through the overlapped ends at successive points spaced along parallel lines angularly disposed to the parallel warp cords of the fabric and alternately pierce and pass through the pieces of fabric from the farthest spaced faces of the overlapped ends. The splicing rods are firmly snubbed together and held in position by the coaction of the warp cords and weft threads of the fabric, as the fabric is tensioned.

Abstract: A constant composition copolymer is automatically made by means of a self-regulating batch process by maintaining the polymerization system at a constant volume throughout the reaction by adding polymerizable monomer in such a manner as to maintain both the unpolymerized monomer in the polymerization mixture at the original composition and the polymerization mixture at the original volume. The process is applicable to any polymerization reaction where a polymer is formed from two or more monomers and where a reduction in the volume of reaction mixture occurs during polymerization.

Abstract: Alcohols such as 1-(3,5-di-t-butyl-4-hydroxyphenyl)-3-butane are prepared via alkylation and reduction reactions. The alcohols can be esterified to form esters such as 4-(3,5-di-t-butyl-4-hydroxyphenyl)-2-butyl acetate which can be used as antioxidants.