Abstract: Improving the endurance of the beads (1) of a radial tire for a civil-engineering heavy vehicle by proposing a solution which blocks the propagation of the cracks initiated in the coating elastomer of the bead reinforcing layer (5), by inserting a cushion rubber (6) interposed between the coating elastomer of the carcass layer turn-up (312) and the coating elastomer of the bead reinforcing layer (5). The elastic modulus in extension of the cushion rubber (6) measured at 100% deformation must be less than the elastic modulus of the coating compound of the carcass layer. Still according to a disclosed embodiment, the thickness of the cushion rubber (6) is at least equal to the thickness of the bead reinforcing layer (5).

Abstract: Provided is a pneumatic tire. A partial tie rubber layer is selectively disposed between a carcass layer and an inner liner layer in an area on a tread portion on either side in a tire lateral direction excluding a center region of the tread portion such that a length of intrusion from a perpendicular line extending from an outermost edge of a belt layer in a tire lateral direction through the inner liner layer toward a tire equator of each of the partial tie rubber layers is within the range from 0 to 15 mm and a length of protrusion from the perpendicular line toward a bead portion of the partial tie rubber layer is within the range from 15 to 120 mm.

Abstract: Materials make it possible to generate mechanical coupling in elastomeric compositions, of use especially for the manufacture of tyre treads. In particular, a tread comprises a composite material based on an elastomeric matrix, a crosslinking system, a reinforcing filler and oriented short fibres.

Abstract: A pneumatic tire mountable on a 15° tapered specified rim includes a bead core, a carcass, a steel cord reinforcing layer, a bead rubber layer, and a first reinforcing rubber layer. A distance from a second line segment to a third line segment is from 4 mm to 8 mm; a side of an outer portion and a side of an inner portion of a bead base portion bend at an inflection point located in a range from 8 mm to 18 mm from the first intersection point; and an angle ? formed by an extension line drawn from the side of the outer portion inward in the tire radial direction and the side of the inner portion is from 4.5° to 14.5°.

Abstract: The present invention regards a solid master elastomeric composition (masterbatch, MB) comprising silicate fibres with needle-shaped morphology of nanometric size, characterised by high fibre content and uniformity, a process advantageous for the preparation thereof and its use in manufacturing tyres for vehicles. Advantageously the present elastomeric composition allows minimising the drawbacks associated with the handling of the powdery fibres in the manufacturing of compounds for tyres, without altering the final performances thereof.

Abstract: Systems and methods of providing a composite material that is bendable but substantially resists stretching under tension. One embodiment may take the form of a composite material formed by over-molding a woven glass fiber with silicone. The woven glass fiber may be rolled out with a silicon polymer melted into the woven fabric as the rolling process continues. The composite of the two materials may provide a material that bends easily but does not substantially stretch.

Abstract: A tire includes a pair of beads, a carcass, chafers, an insulation, and cushion layers. Each bead includes a core positioned inward of the bead in a radial direction. At an inside of the core in the radial direction, the insulation is laminated on the chafers so as to be located outward of the chafers in the radial direction. Each cushion layer is laminated on the insulation so as to be located outward of the insulation in the radial direction. The insulation and the cushion layer are formed from respective crosslinked rubbers different from each other. A compressive elastic modulus E?* of the crosslinked rubber of the cushion layer is smaller than a compressive elastic modulus E?* of the crosslinked rubber of the insulation.

Abstract: A method for forming a semiconductor device includes the following steps. An IMD layer is provided on a substrate. A plurality of block patterns is formed on the IMD layer. A plurality of dummy patterns is formed on the IMD layer and the block patterns. Portions of the IMD layer uncovered by the dummy patterns and the block patterns are etched to form a plurality of trenches of the IMD layer. After the trenches of the IMD layer are formed, the dummy patterns and the block patterns are removed, and a metal material is filled into the trenches to form metal lines.

Abstract: To provide a pneumatic tire 34 in which weight reduction is achieved without deteriorating internal pressure maintaining performance. The tire 34 includes a liner 46 located inward of a carcass 42. The liner 46 includes a first inner liner 66 extending on and between one of beads and the other of the beads and along and inward of the carcass 42; and a pair of second inner liners 68 extending from ends 62a of a belt 44, respectively, along the first inner liner 66 substantially inward in a radial direction. The second inner liners 68 are located between the first inner liner 66 and the carcass 42. The first inner liner 66 is formed by a first rubber composition being crosslinked. A base rubber of the first rubber composition includes a butyl rubber. Each second inner liner 68 is formed by a second rubber composition being crosslinked. A base rubber of the second rubber composition includes a diene rubber.

Abstract: A composition having at least one rubber component; from 49 to 51 parts of carbon black per hundred parts of the at least one rubber component; from 1 to 6 parts of modified para-aramid short fiber per hundred parts of the at least one rubber component; and from 1 to 6 parts of hexamethylene-1,6-bis(thiosulfate) disodium salt dehydrate per hundred parts of the at least one rubber component.

Abstract: A pneumatic tire comprises a belt layer 7, a band layer 9, and a noise damper 10 made of a sponge material and attached to a radially inner surface TS of a tread 2. The width WA of the noise damper 10 is of from 40%-70% of a ground contacting width TW of the tread. The band layer 9 has an overlapping portion 12 in which two band plies 9A, 9B are radially overlapped; and the overlapping portion 12 covers an axially outer region of the belt layer 7 with a cover width WB of from 10%-25% the ground contacting width TW. An axially inner end 12i of the overlapping portion 12 is spaced a distance LC of from 5%-20% the ground contacting width TW from an axially outer end E of the noise damper 10.

Abstract: A tyre for motor vehicle wheels, includes a carcass structure including at least one carcass layer, a belt structure applied in a radially outer position with respect to the carcass structure, a tread band applied in a radially outer position with respect to the belt structure, and at least one elastomeric material layer arranged between the carcass structure and the belt structure in which the at least one elastomeric material layer includes inorganic fibres of magnesium and/or aluminium silicates having nanometric dimensions.

Abstract: In order to improve ride quality and steering stability, the present invention provides a pneumatic tire having a sidewall made of a rubber composition for a sidewall comprising at least a natural rubber and a diene rubber comprising a syndiotactic 1,2-polybutadiene, wherein rubber sheets obtained by extruding at a thickness of at most 1.5 mm the rubber composition for a sidewall with a complex modulus E*a in a tire circumferential direction measured at a temperature of 70° C. and a dynamic distortion of 2% of 3 to 15 MPa are laminated.

Abstract: A pneumatic tire in which a cavity resonance sound is reduced while punctures are easily repaired with a puncture sealant. The pneumatic tire has a fibrous region where short fibers are bonded onto an inner surface of the tire. A circumferential fiberless region where short fibers are not bonded onto the inner surface of the tire extends circumferentially between both ends of a tread ground contact area.

Abstract: The invention relates to a tire having a circumferential rubber tread of a cap/base construction composed of a cap rubber layer as the tire running surface and an internal base rubber layer underlying said tread cap layer. The said tread cap layer is composed of a primary tread cap portion and one or two lateral tread cap portions of rubber compositions containing precipitated silica and/or rubber reinforcing carbon black reinforcement and wherein the rubber composition of at least one of said lateral tread cap portions contains a dispersion of short carbon fibers. Said primary tread cap portion contains a major portion of the running surface of the tread and is comprised of a silica-rich or carbon black-rich, preferably silica-rich, reinforcement-containing rubber composition, and said lateral tread portion(s) contains a minor portion of the running surface of the tread and is comprised of a silica-rich or carbon black-rich, preferably carbon black-rich, reinforcement-containing rubber composition.

Abstract: A tyre for vehicle wheels, includes a carcass structure including at least one carcass layer, a belt structure applied in a radially outer position with respect to the carcass structure, a tread band applied in a radially outer position with respect to the belt structure, and at least one layer of elastomeric material applied in a radially inner position with respect to the tread band; in which the at least one elastomeric material layer includes inorganic fibres of magnesium and/or aluminium silicates of nanometric dimensions.

Abstract: A pneumatic tire comprising a body, a tread, a pair of bead assemblies disposed in the lower section of the body, where said bead assemblies include a bead core and a bead filler, and a pair of sidewalls, where the bead assemblies and pair of sidewalls include vulcanizated rubber, and where at least one of said bead assemblies, or at least one of said sidewalls, or both said bead assemblies and sidewalls include short fibers.

Abstract: A tyre for motor vehicle wheels, includes a carcass structure including at least one carcass layer, a belt structure applied in a radially outer position with respect to the carcass structure, a tread band applied in a radially outer position with respect to the belt structure, and at least one elastomeric material layer arranged between the carcass structure and the belt structure in which the at least one elastomeric material layer includes inorganic fibres of magnesium and/or aluminium silicates having nanometric dimensions.

Abstract: A pneumatic tire includes a carcass comprising a reinforcing ply structure extending between a pair of bead portions, a pair of sidewalls, a tread, a belt reinforcing structure located radially outward of the carcass and radially inward of the tread, and an insert located in each sidewall. Each sidewall is located radially outward of one of the pair of bead portions. Each insert has a first segment constructed of a first material and a second segment constructed of a second material. The first material has a different stiffness than the second material.

Abstract: In accordance with embodiments of the present disclosure an inner tube comprises an encasing configured to hold air. The encasing comprises a reinforcing structure configured such that, as the encasing is inflated, an overall major diameter of the inner tube is reduced. The inner tube also comprises an inflation valve coupled to the encasing and configured to allow inflation of the encasing. Further, the inner tube comprises a pressure valve coupled to the encasing. The pressure valve is configured to be biased closed and allow air to leave the encasing when a differential pressure between inside of the encasing and outside of the encasing reaches a threshold pressure level. In the same or alternative embodiments, the encasing also comprises a reinforcing structure configured such that, as the encasing is inflated, an overall major diameter of inner tube is reduced.

Abstract: There is provided a polyester fiber which has few defects such as voids due to catalyst particles, and low variation in physical properties and minimal fluff generation. The polyester fiber of the invention comprises laminar nanoparticles composed of a divalent metal and a phosphorus compound and having side lengths of 5-100 nm and an interlayer spacing of 1-5 nm. There are also provided a tire cord, tire, belt-reinforcing fiber material and belt, comprising the polyester fiber.

Abstract: The present invention is directed to a pneumatic tire comprising at least one component selected from the group consisting of apexes, flippers and chippers, the at least one component comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 1 to 30 parts by weight, per 100 parts by weight of elastomer (phr), of a polybenzobisoxazole (PBO) short fiber having a length ranging from 0.5 to 20 mm having a thickness ranging from 10 to 30 microns, and from 1 to 50 phr of an epoxidized polyisoprene having a number-average molecular weight of 5000 to 100000.

Abstract: The invention relates to a tire having a rubber tread comprised of a circumferential outer cap rubber layer which contains a tread running surface and an underlying undertread layer of softer rubber than said outer tread cap rubber layer wherein said undertread layer rubber composition contains short fiber reinforcement.

Abstract: The present invention is directed to a pneumatic tire comprising at least one component selected from the group consisting of apexes, flippers and chippers, the at least one component comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 1 to 30 parts by weight, per 100 parts by weight of elastomer (phr), of a polybenzobisoxazole (PBO) short fiber having a length ranging from 0.5 to 20 mm having a thickness ranging from 10 to 30 microns, and from 1 to 50 phr of an epoxidized polyisoprene having a number-average molecular weight of 5000 to 100000.

Abstract: The present invention provides a run-flat tire that can improve both of ride quality and run-flat performance. The run-flat tire of the present invention comprises a sidewall-reinforcing layer prepared by using a rubber composition comprising non-metallic short fibers having an average fiber diameter of 1 to 100 ?m and an average fiber length of 0.1 to 20 mm in an amount of 5 to 120 parts by weight on the basis of 100 parts by weight of a diene rubber, the non-metallic short fibers being oriented in the circumferential direction of the tire.

Abstract: The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising: at least one diene based elastomer; and a reinforcing amount of at least two fillers comprising carboxymethylcellulose and at least one of silica and carbon black.

Abstract: Elastomer compositions and products formed therefrom, the compositions including one or more elastomers and glass microfibers having an average fiber diameter of no more than about 5 ?m and an average length of between about 5 and 200 ?m, wherein the glass microfibers are directionally oriented within the elastomer composition. Alternatively, the average length of the glass microfibers may be between 5 and 100 ?m or in other embodiments, between about 10 and 70 ?m. The elastomer compositions may be used to form products that include a tire tread or a support member within the sidewall of a tire. The glass microfibers may be oriented in, inter alia, a substantially circumferential orientation, a tread thickness orientation or at a 45° orientation in a plane formed between the tread thickness and circumferential orientations or in a sidewall thickness direction.

Abstract: The present invention is directed to a pneumatic tire comprising at least one component selected from the group consisting of apexes, flippers and chippers, the at least one component comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 1 to 30 parts by weight, per 100 parts by weight of elastomer (phr), of a polybenzobisoxazole (PBO) short fiber having a length ranging from 0.5 to 20 mm having a thickness ranging from 10 to 30 microns, and from 1 to 50 phr of an epoxidized polyisoprene having a number-average molecular weight of 5000 to 100000.

Abstract: The invention relates to a tire having a rubber component which contains short fiber reinforcement with a compatabilizer for the fiber reinforcement. Desirably said short fiber reinforcement is an aramid pulp. Desirably said compatabilizer is an epoxy functionalized natural rubber.

Abstract: The present invention is directed to a pneumatic tire comprising at least one component selected from the group consisting of apexes, flippers and chippers, the at least one component comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 1 to 30 parts by weight, per 100 parts by weight of elastomer (phr), of a polybenzobisoxazole (PBO) short fiber having a length ranging from 0.5 to 20 mm having a thickness ranging from 10 to 30 microns, and from 1 to 50 phr of an epoxidized polyisoprene having a number-average molecular weight of 5000 to 100000.

Abstract: A rubber composition used for a tire, in which friction on ice is improved, which includes 0.5 to 30 parts by weight of a filler having at least two protuberances and a non-metal fiber based on 100 parts by weight of a diene rubber.

Abstract: The present invention is directed to a pneumatic tire with a built-in sealant layer composite where the composite is composed of polyurethane with a thin layer of at least one of particulate filler, short fibers and non-woven microfiber. In one embodiment, said polyurethane sealant composite is comprised of a plurality of circumferentially extending layers comprised of a first polyurethane sealant layer, a second polyurethane sealant layer and a thin layer of polyurethane sealant-containing non-woven microfiber positioned between said first and second polyurethane layers. In another embodiment, said polyurethane sealant is a composite comprised of a polyurethane sealant layer containing a thin layer of at least one of particulate filler and short fibers.

Abstract: A tubeless tire includes a carcass covered with a first impermeable layer and a second impermeable layer. The first and second impermeable layers have portions overlapped to obtain a good airtight property. The first impermeable layer includes a composite compound with strength reinforced powder, an intersection carrier and rubber that the tire is strengthened and light in weight. The tubeless tire of the present invention further has a thread on the first impermeable layer to contact ground.

Abstract: 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.

Abstract: The present invention is directed to a pneumatic tire including at least one component. The component includes a rubber composition. The rubber composition includes a diene based elastomer and from 1 to 100 parts by weight of a metallized organic short fiber, per 100 parts by weight of elastomer. The organic short fibers having a length from 1 mm to 5 mm. Both the length and the ends of the short fibers are completely coated with a layer of metal or metal alloy.

Abstract: This invention relates to a pneumatic tire with an improved driveability and a reduced weight as well as a maintained traveling durability, and particularly a pneumatic tire having a high post cure inflation pressure, and being best suited as a pneumatic tire for a light truck with a high air pressure. In the pneumatic tire, twisted cords formed of a polyketone fiber represented by the following formula (a), and having a thermal shrinkage stress value, at a dry heat temperature of 150° C., of not less than 0.19 cN/dtex are used as cords for forming a carcass layer: —(CH2—CH2—CO)n-(R—CO—)m-??formula (a); where the relationship between n and m is represented by the following formula (b), and R represents an alkylene group having 3 or more carbon atoms: 1.05?(n+m)/n?1.00??formula (b).

Abstract: Provided is a pneumatic tire in which the performance change of driving stability due to continuous driving can be suppressed even with a carcass layer, which has a single-ply structure and a wound-up section extended up to a region below a belt layer so as to overlap with an end section of the belt layer.

Abstract: A laminate of a thermoplastic resin and rubber comprising a thermoplastic resin layer (A) made of a matrix of a polyamide resin matrix containing an elastomer dispersed therein and an unvulcanized diene-based rubber layer (B) containing a diene-based rubber and a low molecular weight diene-based rubber having an acid anhydride group and having a weight average molecular weight of 500 to 50,000 laminated partially or totally in at least one layer each to form a laminate integrated at the time of vulcanization and a pneumatic tire using the same.

Abstract: A pneumatic radial tire that can improve maneuver stability while maintaining riding comfort is provided. The pneumatic radial tire has a tire tread including at least two layers of a base tread and a cap tread arranged externally in a radial direction of the base tread. The base tread is formed by a base tread rubber composition including at least 2-20 parts by weight of a kraft paper ground product relative to 100 parts by weight of a rubber component. The base tread has its ratio E*a/E*b of a complex elastic modulus in a circumferential direction E*a to a complex elastic modulus in a tire radial direction E*b set to be at least 1.5, each of the complex elastic moduli E*a and E*b being measured at a temperature of 70° C., a frequency of 10 Hz, and a dynamic strain of ±1% at a tire maximum width position in a state where the tire is attached to a rim and filled to a prescribed internal pressure.

Abstract: The present invention is directed to a pneumatic tire comprising at least one component selected from the group consisting of apexes, flippers and chippers, the at least one component comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 1 to 30 parts by weight, per 100 parts by weight of elastomer (phr), of a polybenzobisoxazole (PBO) short fiber having a length ranging from 0.5 to 20 mm having a thickness ranging from 10 to 30 microns, and from 1 to 50 phr of an epoxidized polyisoprene having a number-average molecular weight of 5000 to 100000.

Abstract: The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 1 to 30 parts by weight, per 100 parts by weight of elastomer, of a polybenzobisoxazole (PBO) short fiber having a length ranging from 0.5 to 20 mm and a thickness ranging from 10 to 30 microns, and from 1 to 30 parts by weight, per 100 parts by weight of elastomer, of an epoxidized palm oil.

Abstract: This invention relates to a cut resistant tire side-wall component and processes for making such components, and a tire containing such component, the side-wall component comprising a textile fabric wherein a single layer of said fabric provides multi-directional cut resistance in the plane of the fabric, the fabric comprising at least one ply-twisted yarn having i) at least one single yarn having a sheath/core construction, the sheath comprising cut-resistant polymeric staple fibers and the core comprising an inorganic fiber, and ii) at least one single yarn comprising cut resistant staple fiber and at least one continuous elastomeric filament and being free or substantially free of inorganic fibers; and the fabric further having a coating for improved adhesion of the fabric to rubber such that the cut resistant tire side-wall component has a free area of from 18 to 65 percent.

Abstract: A run flat support body for a pneumatic tire, including an annular shell and elastic rings, where the elastic rings are composed of a composite elastic material made by compounding reinforcement fillers with an elastic material so as to provide anisotropy to an effect of reinforcement thereof. Additionally, the compressive rigidity of the elastic rings in a radial direction of the tire is made larger than that of unreinforced elastic rings in the radial direction, and the bending rigidity of the elastic rings in an axial direction of the tire is made substantially equal to that of the unreinforced elastic rings in the axial direction. Preferably, the elastic rings include a layered body formed by alternately laminating layers of a composite elastic material in which short fibers are aligned in a circumferential direction and layers of a composite elastic material in which short fibers are aligned in the axial direction.

Abstract: A tire including a carcass, at least two bead regions having a pair of axially spaced beads around which are wrapped turn-up ends, reinforced carcass plies wrapped around the pair of beads, at least one belt structure and tread disposed over the carcass plies, sidewalls disposed between the beads and the tread, at least two apexes, wherein the apexes are a main body of the carcass and the turn-up ends, an EMT insert, and at least one belt overlay; wherein at least one of the group consisting of the apexes, the EMT insert, and the at least one belt overlay contain chopped carbon fibers.

Abstract: The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 1 to 30 parts by weight, per 100 parts by weight of elastomer (phr), of a polyketone short fiber having a length ranging from 0.5 to 20 mm having a weight ranging from 0.5 to 5 decitex, and from 1 to 15 phr of a polyethyleneimine having an average molecular weight of 800 to 2000000.

Abstract: The invention relates to a tire having a split ply carcass member with the ends of the split carcass ply spaced apart in the central crown portion of the tire and a central rubber layer spanning the gap between the split carcass ply ends, wherein said central rubber layer is reinforced with at least one of micro and macro reinforcing fillers. Said central rubber layer may additionally contain continuous cord reinforcement.

Abstract: A pneumatic tire having a rubber sidewall including (A) 30 to 80 phr of natural rubber; (B) 20 to 70 phr of cis 1,4-polybutadiene rubber; (C) from 10 to 100 phr of silica; and (D) from 1 to 30 phr of a particulate rubber gel filler selected from the group consisting of polybutadiene gel, styrene butadiene gel, acrylonitrile-butadiene gel, chloroprene gel, natural rubber gel, and mixtures thereof.

Abstract: The present invention is directed to a pneumatic tire comprising at least one of an apex, flipper, and chipper, the at least one of an apex, flipper, and chipper comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 5 to 40 parts by weight, per 100 parts by weight of elastomer, of a short aramid fiber having a length ranging from 0.5 to 20 mm and having a thickness ranging from 2 to 30 microns, said fiber having disposed on at least part of its surface a composition comprising an aliphatic fatty acid or synthetic microcrystalline wax; a Bunte salt; a polysulfide comprising the moiety —[S]n or —[S]o—Zn—[S]p, wherein each of o and p is 1-5, o+p=n, and n=2-6; and sulfur or a sulfur donor.

Abstract: A pneumatic tire having high uniformity is provided by using a high-strength and high-modulus polyketone fiber cord to form a high-performance and high-quality cord fabric as a reinforcing cord in a carcass layer, a belt layer, or a belt protection layer and applying the cord fabric to the carcass layer, the belt layer, or the belt protection layer. A cord of the carcass layer contains at least 50% by mass polyketone fiber and has a maximum thermal shrinkage stress in the range of 0.1 to 1.8 cN/dtex. Weft cords within the tire substantially orthogonal to the carcass ply cord have a fineness in the range of 60 to 600 dtex, a tensile force in the range of 100 to 2000 g, and an elongation at break in the range of 3% to 30%. The distance between the weft cords substantially parallel to each other ranges from 5 to 50 mm.

Abstract: Elastomer compositions and products formed therefrom, the compositions including one or more elastomers and glass microfibers having an average fiber diameter of no more than about 5 ?m and an average length of between about 5 and 200 ?m, wherein the glass microfibers are directionally oriented within the elastomer composition. Alternatively, the average length of the glass microfibers may be between 5 and 100 ?m or in other embodiments, between about 10 and 70 ?m. The elastomer compositions may be used to form products that include a tire tread or a support member within the sidewall of a tire. The glass microfibers may be oriented in, inter alia, a substantially circumferential orientation, a tread thickness orientation or at a 45° orientation in a plane formed between the tread thickness and circumferential orientations or in a sidewall thickness direction.