Abstract: This invention supplies an insulating conveying belt composed of a belt carcass having at least one embedded reinforcing ply, a pulley cover and a top cover, said top cover having a heat resistant member adhered to said top cover, said heat resistant member being selected from the class consisting of fibers of aramid, glass, ceramic or mixtures thereof. This member may be woven or non-woven such as a punched felt mat. Preferably the fibers of the heat resistant member are woven rather than being of the non-woven type. The elastomer preferably is EPDM or blends of EPDM and silicone rubber with carbon black or silica filler.

Abstract: A pivotal joint assembly including a socket housing having a cavity essentially of the shape of the bearing end of the stud member to receive the bearing member in operative relationship, said bearing member of said stud member being essentially cylindrical in shape and at least covered with sufficient elastomer to form a head and shoulder appearing elastomer ring thereon and to cause the elastomer in the head portion to be compressed 25 to 35% and preferably 27 to 32% in the assembled state.

Abstract: A shapable and photogellable liquid or fluid polyvinyl chloride composition comprising a blend of polyvinyl chloride with sufficient plasticizer and about 13 to 50 parts per hundred of a photopolymerizable polymer to give a liquid or fluid composition. Preferably said composition may contain a photoinitiator and a polyvinyl chloride stabilizer.

Abstract: A method of reducing the monomer content of a polymer or polymerization media comprising subjecting the polymer containing the monomer to sufficient irradiation with a high energy radiation to polymerize said monomer, said radiation preferably occurring in presence of chemical agent that accelerate the rate of consumption of the undesirable monomer, i.e. the monomer considered hazardous and/or protects the polymer from radiation degradation.

Abstract: This invention provides a rubberized stud (10), preferably the molded configuration has a ball shape with a rubber height (28) to thickness (29) ratio of 2.0 to 3.0 and preferably 2.2 to 2.7 which can be compressed sufficiently to be inserted into a smaller diameter shaped socket to maintain the rubber under compression of 20 to 30% of its thickness and thereby produce a spring effect when the ball rod is rotated or twisted.

Abstract: A one component polyurethane precursor suitable as an in-mold coating composition composed of a prepolymer of an organic polyisocyanate with a polyol of a polyether polyol of 2 and 3 hydroxyl groups or a polyester polyol of 2 and 3 hydroxyl groups to give a free NCO content of about 3 to about 15% with a salt complex of a diamine, such as NaCl complex of MDA. The amount of filler and plasticizer, viz, those preferably of the crown or pseudocrown ethers preferably are adjusted to give the precursors a viscosity of about 5 to about 50 pascal seconds at the temperature the precursors are applied, but usually less than about 80.degree. C. These precursors are spread, applied or preferably injected onto the surface of the fiberglass molding viz a polyester or epoxy resin one and pressed at a pressure of about 5 to 200 psi (34,475 to 1,379,000 pascals) and higher at a temperature of at least 80.degree. C. to cure the precursor to give a polyurethane coating on the fiberglass molding.

Abstract: Interpolymers of alpha-olefins and nonconjugated alpha,omega-dienes are prepared by organoaluminum compound-transition metal compound catalysts modified with hexaalkylphosphoric triamides or organophosphate esters.

Abstract: A polyvinyl chloride composition fabric reinforced belt said composition comprising a blend of 100 parts of polyvinyl chloride with about 10 to 30 parts of a copolymer of butadiene acrylonitrile.

Abstract: Storable polypropylene ether polyurethane compositions composed of (a) a prepolymer of a polypropylene ether glycol and sufficient organic polyisocyanate to give preferably an excess of about 3 to 15 percent NCO in said prepolymer with the proviso that the free NCO is obtained from methylenedi-p-phenyl diisocyanate and (b) a complex of an alkali metal salt with 4,4'-methylenedianiline (MDA), said composition being relatively inactive at temperatures below 100.degree. C., but being heat activatible at much higher temperatures to effect a cure. The improved composition wherein a catalyst is present in said composition which effectively lowers the cure temperature, said catalyst being a pseudocrown ether containing radicals having the formula --y--CH.sub.2 --CH.sub.2).sub.n with y being nitrogen, sulfur or oxygen and n has values sufficient to form the crown structure, viz., at least 3 or more.

Abstract: A track segment for track vehicles composed of a metal plate or binocular part having at least one layer of an olefin or diolefin elastomer adhered thereto or covering said metal part and at least one or more layers of a polyurethane adhered to said elastomer, with at least an outer layer of polyurethane serving as part or all the ground contact or sole.

Abstract: An inflatable packer assembly having an inflatable bladder having reinforcing means where the steel wires are arranged as a series of parallel inline cables positioning within the bladder and their ends are anchored in an upper and a lower shoe means and is embedded in elastomeric compounds having preferably special physicals and a cover of a tough elastomer.

Abstract: A blend of about an equivalent of a carboxyl terminated polyester having a carboxyl end group equivalent weight of 900 to 1200 with 0.8 to 1.2 equivalents of an epoxy curing agent having an equivalent weight of about 70 to 1000, 0 to 50% by weight of a copolyester melt adhesive and sufficient powdered metal to make 20 to 70% but preferably about 30 to 50% metal by weight based on recipe without the copolyester melt adhesive.

Abstract: This invention provides a method of controlling the pollution in a microwave devulcanization process consisting of passing particles of sulfur-vulcanized elastomer containing polar groups through a microwave energy devulcanization device to generate heat in the devulcanization of said particles whereby said particles exits said device at a temperature in excess of 260.degree. C., feeding said particles from the devulcanization device to feed input of an extruder, extruding said particles to exit the extruder at a temperature of about 90.degree. to 125.degree. C. as an extrudate. The extrudate can be used per se as a compounding stock or sent to a mill to be sheeted and stored until needed.

Abstract: A method of making an elastomeric coated fabric container utilizing cured elastomeric coated fabric and adhering the edges of each layer of fabric to the other with an adhesive film and curing the adhesive film under heat and pressure to form said container.

Abstract: A liquefiable peroxide reactive molding composition comprising a reaction product of a polyol, an organic polyisocyanate and a hydroxyl ethylenic containing compound, said liquifiable composition having a free NCO content of less than about 0.3% by weight and an organic peroxide and being useful as an injection molding composition and as an adhesive that is essentially insensitive to atmospheric moisture.

Abstract: A shaped sound barrier component comprising a thermoplastic member highly loaded with barium sulfate (more than 200 to about 400 parts) and zinc oxide (1 to 500 parts). Preferably the thermoplastic contains 20 to 50 parts of chopped fibers per 100 parts of said thermoplastic although larger amounts can be used, for instance a 100 parts where the usage is severe.

Abstract: A body solder composed of a blend of 20 to 70 percent by weight of powdered aluminum in a thermoplastic polyester having a melting point of 200.degree. to 220.degree. C. The preferred solders have powdered aluminum with a particle size of from 0.2 to 150 microns and the polyester contains dimerates.

Abstract: An improved two component adhesive whereby said adhesive exhibits sag resistance on a vertical surface substantially immediately after the two components are mixed with adequate gel time for use thereof said two component adhesive being composed of a polyurethane prepolymer component and a curative component mixed at a ratio of 4:1.

Abstract: A method of making an air spring comprising spreading a fabric around a core having the shape of said air spring, anchoring edges of said fabric in overlap area to the core to form a reinforcing member thereon, placing the core having the reinforcing member thereon in a mold, closing said mold, injecting an elastomeric precursor into the mold and curing to form said air spring.

Abstract: An inflatable-deflatable flexible structural component comprising a flexible foam core portion having a fabric covering, the fabric being sealed against loss of air by a flexible elastomeric coating.