132results about "Without separate inflatable inserts" patented technology

To provide a rubber composition and a tire excellent in overall performance of hardness and crack growth resistance.SOLUTION: The rubber composition comprises a rubber ingredient containing a butyl-based rubber, a cyclic amine having double bonds in the ring, and carbon black having a 24M4DBP oil absorption of 170ml / 100g or more.SELECTED DRAWING: None

A pneumatic tire (10) is disclosed comprising a carcass (16), an air barrier layer (24) and a puncture resistant layer (20, 20b). In one aspect, the puncture resistant layer (20, 20b) is located adjacent to the carcass (16) and the puncture resistant layer (20, 20b) has a post cure tack value with the carcass (16) of less than 50 N as measured at normal inflation pressure in accordance with ASTM D624-00 - Type C configuration. In another aspect, the puncture resistant layer (20, 20b) is located adjacent to the air barrier layer (24) and the puncture resistant layer (20, 20b) has a post cure tack value with the air barrier layer (24) of less than 50 N as measured at normal inflation pressure in accordance with ASTM D624-00 - Type C configuration.

A tire comprising an inner liner and insulation that contacts the inner liner on an outer surface of the inner liner in a tire radial direction, the insulation is made up of a rubber compound that includes recovered carbon black, where an air permeability coefficient of a rubber composition forming the inner liner is less than 18 × 10 -11 cm 3 · cm / (cm 2 · s · cmHg) is, where the thickness of the inner liner on a tire equator plane is 1.5 mm or less, and where the loss tangent at 70 °C, 70 °C tanδ, of a complex of the insulation and the inner liner is 0.22 or less.

The present invention provides a tire rubber composition that has excellent resistance to ozone, and high retention rates for elongation at break (EB) and tensile strength (TB) after aging. This tire rubber composition is characterized by including a rubber component, an amine-based antioxidant represented by prescribed general formula (1), and a quinoline-based antioxidant, wherein the amine-based antioxidant content is 0.1 to 11 parts by mass relative to 100 parts by mass of the rubber component, and the quinoline-based antioxidant content is 0.1 to 0.95 parts by mass relative to 100 parts by mass of the rubber component.

A tire has at least an electrically-conductive rubber. The electrically-conductive rubber has a contacting portion provided at a position contacting a rim.

An assembly (1) for a tire comprises: a first structure (10) formed by first cord elements (15), a second structure (12) formed by second cord elements (16), a bearing structure (14) comprising bearing cord elements (17) linking the first cord elements (15) to the first structure (10) and the second cord elements (16) of the second structure (12), and at least one cord securing element (18) fixed to the first cord elements (15) and to the second cord elements (16), said securing element (18) exhibiting an elongation at rupture at least equal to a minimum elongation greater than or equal to the ratio (A1) between a conformation height (h) of the assembly (1) and the sum of a thickness (e1) of the first structure (10), of a thickness (e2) of the second structure (12) and of a lock length (E).

A pneumatic tire of the present invention includes a tread portion, sidewall portions, bead portions, a carcass, and an inner liner layer. The carcass includes a plurality of carcass cords and a topping rubber layer. The inner liner layer includes a butyl rubber layer and an adhesive rubber layer. An electronic module is disposed between the carcass and the adhesive rubber layer. The electronic module includes an electronic component and a cover rubber. The cover rubber includes an inner layer and an outer layer. The electronic component is covered between the inner layer and the outer layer of the cover rubber.

This invention provides a tire that suppresses deterioration of rolling resistance, reduces electrical resistance, suppresses shrinkage of the unvulcanized rubber in the tread area that contacts the road surface, and improves high-speed durability. [Solution] The tire of the embodiment comprises Earth Red rubber 14, Cap Tread rubber 12 and Tie rubber 10. Earth Red rubber 14 has a specific surface area [m²] of carbon black CTAB adsorption. 2 The specific surface area × mass fraction (ET), which is the product of the [ / g] and mass fraction, is 20 to 40. The cap tread rubber 12 contains 80 parts by mass or more of silica per 100 parts by mass of rubber components, and the ratio of the mass of silica to the mass of filler is 90% or more. The tie rubber 10 is positioned on the inside of the tire relative to the carcass 4 and extends along the carcass 4 between a pair of bead cores 5. The specific surface area of ​​carbon black (A) and (B) of the tie rubber 10 with adsorption [m² 2 The product of [ / g] and mass fraction is between 20 and 40.

An inflation system for tubeless bicycle tires may include a valve, a sealant canister, a pump head, and / or a valve core adapter. The valve, sealant canister, and pump head may collectively facilitate sealant injection into a tire by a user. The valve has an external valve seat, and includes a valve body, a valve stem extending through the length of the valve body, and a retaining mechanism for the valve stem disposed interior to the valve body. The valve stem is configured to move relative to the valve body, such that a resilient seating surface disposed at a proximal end of the valve stem is displaced relative to a valve seat formed by an exterior surface of a proximal end of the valve body.

A pneumatic tire and method of production thereof are disclosed, wherein the tire comprises an innerliner, which constitutes an inner covering and has the purpose of holding air within the pneumatic tire. A joint of the innerliner confers a cylindrical shape to the innerliner. A radio frequency identification (RFID) label is applied to a radially inner surface of the innerliner which constitutes the innermost free surface of the pneumatic tire, and is completely arranged within a zone which is centered on the joint and which extends circumferentially starting with the joint for no more than 90° per side.

A tire (1) has improved handling and comprises a stiffening structure (7) comprising two stiffening elements (8), each extending continuously in the toroidal interior cavity (6) from a crown interface (81) connected to a radially inner face of the crown (23) to a bead interface (82) connected to an axially inner face of the bead (41). The stiffening structure (7) is distributed circumferentially around the entire circumference of the tire. The crown interface (81) is positioned, with respect to the equatorial plane (XZ), at an axial distance A at most equal to 0.45 times the axial width S and the bead interface (82) is positioned, with respect to a radially innermost point (I) of the axially inner face of the bead (41), at a radial distance B at least equal to 0.10 times the radial height H and at most equal to 0.5 times the radial height H.

A pneumatic tire (1) having: a carcass ply (3); two annular bead plies (4); annular tread (7); a liner (12); a pair of sidewalls (13); a pair of cover elements (14), each cover element surrounding a corresponding bead ply (4); a pair of scrapers (18), each scraper inserted between a corresponding edge (17) of the carcass ply (3) and the remainder of the carcass ply (3); and an electronic device applied to the inner surface of the liner (12) and arranged between the corresponding cover element (14) and the corresponding scraper (18). The electronic device is arranged at a first radial distance (R1) greater than 8 mm from the inner edge (15) of the corresponding cover element (14) and a second radial distance (R2) greater than 5 mm from the corresponding scraper (18). Alternatively, the electronic device is arranged at a first radial distance (R1) from the inner edge (15) of the corresponding cover element (14) and is radially aligned or radially partially stacked on the corresponding scraper (18). Alternatively, the electronic device is radially aligned or radially partially stacked on the corresponding cover element (14) and is arranged at a second radial distance (R2) from the corresponding scraper (18).

The present invention provides a pneumatic tire and a method for manufacturing the same, in which a sound-absorbing material is adhered in a state in which a release agent is adhered to the inner surface of the tire, whereby both air retention and adhesiveness of the sound-absorbing material can be achieved without deteriorating tire productivity. A pneumatic tire vulcanized using a bladder provided with a coating layer formed from a release agent, in which a sound-absorbing material (6) is affixed to the inner surface of a tread portion (1) in the tire circumferential direction via an adhesive layer (7), and the silicon content of the release agent detected by X-ray fluorescence analysis at least in the affixed region of the sound-absorbing material (6) is 0.1-10.0 wt%.

The utility model discloses a two-piece type tubeless self-sealing wheel, characterized in that: including tubeless pneumatic tire body, with the hub of tire body adaptation connection, set up at tire body and the hub one side junction place's bead seat and the pneumatic rod of penetrating the hub, tire body's bead part integral moulding has a plurality of with the ring -like distribution of bead seat and the sealed connection of hub O -ring, the utility model discloses the setting of annular O -ring, O -ring and the hook portion of bead seat, the fixed part sealed surface of hub close adhesion, utilize the elastic deformation of O -ring to fill the gap, form sealed structure, simultaneously hook portion both sides edge resist O -ring circumference, force O -ring to produce radial elastic deformation, further enhance sealed density, effectively prevent tire body air leakage, satisfy the self -sealing demand of tubeless wheel, guarantee the pressure stability of wheel internal air cavity, improved the driving safety and stability, reduced the manufacturing and maintenance cost of inner tube, with good economic benefits.

A pneumatic tire is provided that can ensure sealing performance in low-temperature environments. In a pneumatic tire having a tread (1) that extends in a ring shape along the tire circumference, a pair of sidewall portions (2) disposed on both sides of the tread (1), and a pair of bead portions (4) disposed on the radially inner side of these sidewall portions (2), a sealant layer (20) is formed on the inner surface of the tire at the tread (1), such that the glass transition temperature of the sealant constituting the sealant layer (20) is below the glass transition temperature of the crown rubber material constituting the tread (1).

This disclosure provides compositions comprising carbon particles such as carbon black. The compositions may comprise rubber, for example, rubber usable in tires, and carbon black as a filler compound. The carbon black filler compound may comprise carbon black particles produced by thermal plasma methane pyrolysis and one or more binders configured to pelletize the carbon black particles.

A disclosed vehicle tire includes at least one resonator embedded within tire material. The resonator may be formed from three-dimensional monolithic carbonaceous growth and may detect electromagnetic pings from an interrogator device. The resonator may generate electromagnetic return signals indicating material state and environmental conditions at positions proximate to the resonator. The resonator may resonate at a first frequency when the material is in a first state or under first environmental conditions, and at a second frequency when in a second state or under second environmental conditions. The resonant frequency of the carbonaceous growth is based on physical characteristics of the material. This frequency-shifting capability enables real-time monitoring of tire conditions including deformation, wear, pressure changes, and environmental factors through passive electromagnetic sensing without requiring moving parts or complex electronics.

A pneumatic tire of the present invention includes a tread portion, sidewall portions, bead portions, a carcass, and an inner liner layer. The carcass includes a plurality of carcass cords and a topping rubber layer. The inner liner layer includes a butyl rubber layer and an adhesive rubber layer. An electronic module is disposed between the carcass and the adhesive rubber layer. The electronic module includes an electronic component and a cover rubber. The cover rubber includes an inner layer and an outer layer. The electronic component is covered between the inner layer and the outer layer of the cover rubber.

Provided are a pneumatic tire and a method for manufacturing the same, wherein thermal shrinkage of a carcass layer due to heating when a sealant layer is formed is suppressed, thereby reducing deformation occurring in the tire and improving durability. In a pneumatic tire provided with a tread portion (1), a pair of sidewall portions (2), and a pair of bead portions (3), a carcass layer (4) including a plurality of carcass cords extending in the radial direction of the tire is bridged between the pair of bead portions (3, 3), the carcass cords of the carcass layer (4) have a thermal shrinkage at 180 DEG C in the range of 0.2-4.0%, and a sealant layer (20) is formed on the tire inner surface (10) of the tread portion (1). The sealant of the sealant layer (20) is configured from a silicone-based composition.

In a tire in which a noise damper is fixed to the tire cavity side of an inner liner, the separation resistance of the noise damper is improved and the environmental load is reduced. The tire includes a carcass extending across a pair of bead portions, an inner liner disposed radially inward of the carcass to form the tire cavity surface, and a noise damper formed using a biomass-derived material and fixed to the tire cavity side of the inner liner, and the maximum density DSmax (kg / m 3 ), minimum value DSmin (kg / m 3 ), average value DSave (kg / m 3 ), and the density DI of the inner liner (kg / m 3 ) satisfies the following (Formula 1) and (Formula 2). {(DSmax-DSmin) / DI}×100<0.25...(1 set) (DSave / DI)×100>2.5 (2 sets)

To provide a pneumatic tire that can achieve both noise performance and low fuel consumption performance.SOLUTION: A pneumatic tire 1 comprises a tread portion 2, a pair of sidewall portions 3, a pair of bead portions 4, a carcass 6 extending between the pair of bead portions 4, and an inner rubber 10 extending between the pair of bead portions 4 on an inner side of the carcass 6. The inner rubber 10 comprises a first portion 11 extending in the tread portion 2 with a first thickness t1, and a second portion 12 extending in the pair of sidewall portions 3 with a second thickness t2. The first thickness t1 is greater than the second thickness t2. The tread portion 2 comprises a tread rubber 2G forming a ground contact surface 2s. The loss tangent tanδ1 of the first portion 11 at 70°C is greater than or equal to the loss tangent tanδ2 of the second portion 12 at 70°C, and less than or equal to the loss tangent tanδA of the tread rubber 2G at 30°C.SELECTED DRAWING: Figure 1

To provide a tire that can reduce electrical resistance while suppressing increases in mass and fitting pressure. [Solution] The length Lt from the tire equatorial plane CL to the end 22a of the tire rubber 22 and the length Li from the end 21a of the inner liner 21 are equal to Lt

Pneumatic tire having a toroidal carcass, which includes a body ply that is partially folded onto itself and therefore having two lateral flaps; two annular beads, each of which is surrounded by the body ply and has a bead core and a bead filler; an annular tread; a pair of sidewalls; a pair of abrasion gum strips; an innerliner which is impermeable to air and arranged within the body ply; and a transponder which is arranged between the body ply and the innerliner at a flap of the body ply. Between a radially outer end of the transponder and an edge of the body ply a first radial distance is provided that is greater than 7 mm; and between a radially inner end of the transponder and an edge of the bead filler a second radial distance is provided that is greater than 7 mm.

A pneumatic tire (1) includes a tread portion (2) having a land portion (24) divided by a plurality of main grooves (22) formed by a tread (21), an inner liner (7) constituting an inner surface (7A) of the tire on an inner side in the tread portion (2), and a mounting member (10) capable of mounting an electrical device provided to the inner surface (7A) of the tire. In the pneumatic tire (1), an acetone extract amount (AE2) of a rubber composition constituting the inner liner (7) is larger than an acetone extract amount (AE1) of a rubber composition constituting the mounting member (10).

Provided is a tire capable of having a reduced electric resistance while suppressing an increase in mass and an increase in fitting pressure. The length Lt between a tire central plane CL and an end 22a of a tie rubber 22 and the length Li between the tire central plane CL and an end 21a of an inner liner 21 satisfy the relationship Lt<Li. The end 21a of the inner liner 21 is located inward of an outermost part 11c of a bead core 11 in the tire width direction. The end 22a of the tie rubber 22 is located inward of a radially outermost part 11a of the bead core 11 in the tire radial direction. The distance Rtg of the end 22a of the tie rubber 22 and the distance Rrc of a rim cushion inside outermost part Rwi both from the tire rotation axis satisfy the relationship Rtg<Rrc. The relationship between a lap amount LAP [mm] between the tie rubber 22 and a rim cushion 30 and the thickness Gi [mm] of the inner liner 21 is in the range of 0.0075≤Gi / LAP≤1.5. The tie rubber 22 and the rim cushion 30 have a volume resistivity of less than 1×10^8 [Ω·cm].

The present invention is provided with: a pair of bead sections (10) in which a bead core (11) and bead section rubber (30) having a volume resistivity of less than 1 * 108 [Omega cm] are disposed; a belt layer (14) disposed on the outside of the carcass layer (13) in the radial direction of the tire; a tread rubber (15) disposed on the outside of the belt layer (14) in the radial direction of the tire; and a bead section (10) formed in a sheet shape and continuously extending from a position on the inner surface (25) of the tire that overlaps at least an end section (144) of the belt layer (14) in the width direction of the tire, and a conductive member (50) having a volume resistivity of less than 1 * 108 [Omega cm], and an end portion (51) on the inner side in the tire radial direction of the conductive member (50) being covered by a bead rubber (30) disposed in the bead portion (10), whereby the resistance of the tire can be continuously reduced.

The present application provides a laminated body of vulcanized rubbers having excellent adhesion stability, a manufacturing method of the laminated body, and a tire including the laminated body. The laminated body of the present application is a laminated body including, in order, a first layer made of a vulcanized rubber, an adhesion layer made of a cured product of a cyanoacrylate-based adhesive, a second layer made of a vulcanized rubber, and a sensor layer including a sensor, the cured product having a softening point of 71°C or higher.

We provide tires with excellent durability. [Solution] A tire comprising a band and a tire member made of a rubber composition containing recycled carbon black, wherein the band includes at least one band ply in which a plurality of band cords made of polyethylene terephthalate fibers are arranged, and when the thickness of the tire member is A (mm), the total amount of carbon black in the rubber composition, including recycled carbon black, in the rubber composition is B (parts by mass) per 100 parts by mass of rubber component in the rubber composition, the number of band cords driven in per 50 mm band ply width in a cross section perpendicular to the longitudinal direction of the band cords (cords / 50 mm), and the diameter of the band cords is D, then a tire in which A to D satisfy the following formula (1). (1) 0.07