摘要:
A pneumatic tire having a component comprising: at least one rubber selected from polybutadiene rubber, styrene-butadiene rubber, synthetic polyisoprene rubber, and natural rubber; and from 1 to 30 parts by weight, per 100 parts by weight of rubber, of a terpolymer of: ethylene, an α-olefin, and a non-conjugated diene; the terpolymer having an ethylene content of greater than 80 percent by weight and a Mooney viscosity (ML 1+4 at 125° C.) of from 5 to 25 as measured by ASTM D-1646.
摘要:
This invention relates to tires wherein at least a portion of its tire tread containing a running surface is of a rubber composition comprised of a functionalized elastomer, silica reinforcement, particularly precipitated silica aggregates which contain hydroxyl groups (e.g. silanol groups) and a blocked alkoxyorganomercaptosilane coupling agent. The rubber composition may constitute the entire, or major portion of, the running surface of the tread or may be limited to only a longitudinal circumferential strip, or portion, of the running surface of the tread. Such functionalized elastomer is an elastomer which contains functional groups distributed along the polymer chain and/or at its terminal end. Such functional groups may be divided into two categories, namely, a first category which promotes adsorptive interactions with the precipitated silica and a second category which chemically bonds to the precipitated silica. Such functionalized elastomer may contain functional group(s) from either of both of said first and second categories. In addition, said functionalized elastomer may be tin coupled.
摘要:
This invention relates to a pneumatic rubber tire which contains at least one electrically conductive cord extending between its bead portion and its tread portion to provide a path of least electrical resistance. The electrically conductive cord is comprised of at least one electrically conductive metal filament spirally wound around a centrally disposed core of at least one organic fiber. The electrically conductive cord extends from a rubber component in a bead portion of the tire which is relatively electrically conductive to a rubber component in the tread portion of the tire which is relatively electrically conductive in a manner that said electrically conductive cord does not extend to, and therefore is exclusive of, an outer surface of the tire. An electrically conductive path is thereby provided between a mounting surface of the tire in its bead region to a running surface of the tire tread. The electrically conductive cord may also be comprised of an electrically conductive metal filament, electrically conductive carbon fiber, or their combination, spirally wound around a core of at least one organic fiber.
摘要:
This invention relates to a pneumatic rubber tire having a puncture resistant rubber sidewall. The said tire sidewall is comprised of an outer, visible annular configured sidewall rubber layer and an inner (non-visible) annular configured sidewall rubber layer integral with and underlying said outer sidewall rubber layer, wherein said inner sidewall rubber layer contains a dispersion of short fibers, wherein said short fibers are substantially aligned in parallel relationship to each other and substantially parallel to the said annular configuration of said inner sidewall rubber layer. In a further aspect of the invention, said tire is comprised of a carcass which contains a rubber carcass ply comprised of a rubber encapsulated cord reinforcement of a plurality of cords wherein said cords are positioned in a radially disposed spaced apart substantially parallel relationship to each other, wherein said rubber carcass ply is integral with and underlies said inner rubber sidewall layer and wherein said short fibers of said inner rubber sidewall layer are substantially aligned in a perpendicular direction to said cords of said underlying carcass ply.
摘要:
A pneumatic rubber tire with a sidewall having an outer visible layer of a rubber composition of a relatively high electrical conductivity, wherein the tire sidewall contains an internal rubber strip of relatively high electrical conductivity. Said internal rubber strip extends radially outward from a rubber chafer component of the tire to a tread base layer component of a rubber tire tread of a cap/base configuration, wherein said chafer and tread base rubber compositions are of a relatively high electrical conductivity. The rubber strip thereby provides a path of increased electrical conductivity relative to said outer visible layer of the tire sidewall extending from the tire chafer to the tread base layer tire components. In practice, the rubber strip is exclusive of the outer surface of the tire tread cap layer intended to be ground-contacting, preferably exclusive of the tire tread cap layer itself, and preferably exclusive of the outer surface of the tire chafer component intended to contact a rigid metal rim of a tire/rim wheel assembly.