Abstract: An outside green tire paint is provided which is a water based paint. The paint is substantially free of silicone and hydrocarbon solvents. The paint compositions comprise (a) rubber latex, (b) wax dispersion, (c) carbon black, (d) water and (e) a surfactant.

Abstract: An inside green tire paint is provided which is a water based paint. The paint is substantially free of silicone and hydrocarbon solvents. The paint composition comprises (a) rubber latex, (b) wax dispersion, (c) water, (d) wetting agent, and (e) air bleeding pigment.

Abstract: A system is disclosed for detecting potential defects as evidenced by surface irregularities in the sidewalls of a tire to be tested. A test is performed on a "uniformity machine" programmed to run standard tire tests. The system preferably utilizes a pair of oppositely disposed non-contact probes, means for distinguishing between `noise` and a desired signal, means for analyzing and identifying the signal, means for determining whether the identified signal falls within a preselected range, and means for identifying a tire having acceptable or unacceptable bumps and/or depressions. A tire is deemed acceptable when it qualifies within preselected limits for bumps and/or depressions, and unacceptable if it does not so qualify.

Abstract: A puncture-sealing pneumatic tubeless tire comprising a sealant as its innermost layer and a tack layer disposed between said sealant and the air impervious liner. The tack layer is integral with the tire and allows the application and adherence of the sealant to the tire without first cleaning the inside of the tire. The tack layer is a soft, vulcanized layer consisting of cis-polyisoprene rubber and/or natural rubber.

Abstract: A puncture-sealing tubeless pneumatic tire having an inner layer of soft, tacky, extensible sealant consisting of (1) at least one vinylidene-terminated liquid polymer and (2) at least one amine.

Abstract: A pneumatic radial tire having reduced rolling resistance is provided. The tire has a novel tread composition comprising 100 parts by weight of rubber of which at least 90 parts by weight is cis-polyisoprene. The tread composition also has less than 10 parts by weight of processing oil and from 30 to 60 parts by weight of carbon black wherein said carbon black has a particle size greater than about 35 millimicrons and a dibutyl phthalate absorption value greater than 100.

Abstract: A puncture-sealing tubeless pneumatic tire having an inner layer of soft, tacky, extensible sealant consisting of (1) at least one vinylidene-terminated liquid polymer and (2) at least one amine.

Abstract: An improved tire building method is provided whereby the nonwicking finishing strip is placed on the building drum first before the remaining components are applied to the drum. Once the carcass plies and the bead core are positioned on the drum, the finishing strip is turned up around the bead core to effectively seal off the inflation chamber of the tire. The method of this invention is especially useful for tires built on flat cylindrical drums.

Abstract: A puncture-sealing tubeless pneumatic tire having an inner layer of soft, tacky, extensible sealant consisting of (1) at least one vinylidene-terminated liquid polymer and (2) at least one amine.

Abstract: Particulate rubber is intimately and uniformly coated with an anti-cake(s) and pressed at mild temperatures to form friable rubber bales. The bales have a bulk density from about 1.3 to about two times that of the original particulate rubber and are capable of being handled as a slab and of supporting a direct load, yet break down under shear to form particles substantially similar in size and distribution to that of the original particulate rubber.

Abstract: A vehicular pneumatic tire which, except for bead cores, is composed solely of an elastomeric blend strengthened by molecular orientation. The blend is a monoolefin copolymer rubber with a polyolefin and sufficient curing agents to effect vulcanization when the blend is subjected to heat and pressure. The process for making the tire comprises preforming an annulus of the elastomeric blend with bead cores adjacent the edges, the diameter of the preform being essentially that of the bead diameter of the completed tire and the axial distance between the beads less than the transverse arcuate dimension of the completed tire. The preform is cured and while still hot following curing, is stretched and shaped to final size and the generally toroidal form characteristic of conventional pneumatic tires with resulting biaxial molecular orientation, which orientation is retained in the tire by cooling it below the melting point of the polyolefin before removing the tire from the mold.

Abstract: A reliable signaling device is provided which will allow an operator of a reactor vessel to ascertain when a leak has occurred in the reactor vessel rupture disc or diaphragm. The signaling device is actuated by pressure which escapes through a leak in the rupture disc. The signaling device makes the operator aware of when a rupture disc is leaking and thereby avoids a potential hazard of the reactor vessel exceeding its designed pressure rating. The signal device when modified may also be used in vacuum operations.

Abstract: Bonding of rubber or other plastics to mineral reinforcements such as silica pigment is brought about by a mercapto alkyl silane without production of foul odors from the mercapto compound by preliminary reversible coupling of the mercapto compound with a material capable of addition reaction such as toluene diisocyanate.

Abstract: Improved weather resistant products such as building siding, shutters, roof vents and the like, are made by coextruding or laminating a plasticized vinyl chloride capstock with a substrate of rigid vinyl chloride polymers, chlorinated vinyl chloride polymers, or acrylonitrile-butadiene-styrene polymers. The resulting composites are much improved over rigid PVC, chlorinated PVC, or ABS articles alone for retention of appearance and retention of impact on aging.

Abstract: A puncture-sealing pneumatic tire has a soft, vulcanized inner layer consisting of cis-polyisoprene rubber and/or natural rubber. The inner layer is preferably coated with a polyolefin polymer that flows into punctures at operating temperatures and said polyolefin polymer adheres to the inner layer by means of surface tension alone.

Abstract: A puncture sealing tire has an inner layer consisting of closed cell cellular rubber, in direct contact with the inflation gas. The inner layer is preferably coated with a solid fluent material capable of flowing into punctures at operating temperatures.

Abstract: Vinyl chloride and vinylidene chloride polymer compositions containing alumina trihydrate and bismuth-subcarbonate, produce decreased amounts of smoke on burning.