A tire which is formed of a resin material, is highly elastic, has a low loss factor, and has excellent heat resistance and fracture characteristics. A tire 10 has a circular tire case 17 that is formed of a resin material including a polystyrene-based resin and a resin having compatibility with polystyrene and having a glass transition temperature (Tg) higher than that of polystyrene.

The invention relates to a tire sidewall, at least one portion of which has a rubber composition based on at least a diene elastomer, a crosslinking system and a reinforcing filler, wherein the content of reinforcing filler in the composition varies from 20 to 40 parts by weight per hundred parts of elastomer, phr, with a volume fraction of reinforcing filler in the composition ranging from 8.0% to 13.0%, and in that this reinforcing filler comprises predominantly a carbon black or a mixture of carbon blacks with a BET specific surface area ranging from 50 m.sup.2/g to 69 m.sup.2/g.

A tire includes a first side and a second side, and a tread portion extending between the first side and the second side. The first side includes external geometry having at least one rib surrounding a recess, without extending into the recess. The recess is configured to receive a tire electronic device.

A device for transport of air in the tire P or close to it consisting of a chamber K in the shape of a hollow compressible channel, placed along at least a part of the tire perimeter, characterized by the fact that a ring OK is placed at the inner side of the chamber K with the distance of its outer side from the tire axis of rotation equal to 1 to 1.1 multiple of the distance of the bottom side of the chamber K from the axis of rotation of the tire P.

A pneumatic tire in which an inner liner including a film mainly made of thermoplastic resin is attached to an inside of the tire via a tie rubber sheet, on an inner side of a carcass layer, and which has a lap-splice portion where end portions of the film in a tire circumferential direction overlap each other in a tire widthwise direction with tie rubber therebetween. A section of the film on a tire cavity side in the lap-splice portion has a portion where the film is thin over part or entirety of the width in the tire widthwise direction before the lap-splice portion, or a film thickness in the lap-splice portion is smaller than a film thickness in a portion other than the lap-splice portion. Thus, the pneumatic tire has no crack developing around the lap-splice portion of an inner liner layer after running, and has excellent durability.

A tire is described that includes a casing defining a cavity and equipped to receive an object, such as an electronic circuit, for example, through use of a two-part attachment, such as a touch-close attachment, of which a first part is fixed to a wall of the casing and a second part can be joined to the first part when placed in contact with the first part to keep the object on the casing in a service position. The first part of the attachment includes connection elements that are an integral part of the wall of the casing of the tire. The connection elements allow these two parts to have freedom to move relative to each other, thereby limiting the transmission of stresses, which affect the wall of the tire, to the object. The connection elements may be loops of flexible thread formed by the extremities of turns of a coiled thread integrated into the wall of the tire during the tire's manufacture.

A product such as a tire includes a radio frequency identification device (RFID) assembly located along an outer sidewall. The RFID assembly has a thin, flexible, substantially planar, elongated non-conductive rubber, elastomer, or polymer substrate. First and second thin, flexible, elongated, substantially planar first antenna portions formed at least in part of the same conductive rubber, elastomer, or polymer are provided on the substrate. Opposite first and second ends of the first antenna portion have different first and second widths. A chip has opposite first and second ends in operative electrical connection with the first and second antenna portions, respectively, and is located between the outer sidewall and the substrate.

A multilayer laminate, which is usable as a reinforcing element for a finished article or for a semifinished product made of rubber, such as a tire, includes at least one polymer film having, in any tensile direction in the film's plane, a Young's modulus that is greater than 500 MPa. The film is positioned between and in contact with two layers formed of a rubber composition, such as natural rubber. Each layer formed of the rubber composition exhibits, in a crosslinked state, a secant modulus that, in extension at 10% elongation, is greater than 30 MPa, with between 30 and 150 MPa being preferable for the secant modulus.

A product such as a tire includes a radio frequency identification device (RFID) assembly located along an outer sidewalk The RFID assembly has a thin, flexible, substantially planar, elongated non-conductive rubber, elastomer, or polymer substrate. First and second thin, flexible, elongated, substantially planar first antenna portions formed at least in part of the same conductive rubber, elastomer, or polymer are provided on the substrate. Opposite first and second ends of the first antenna portion have different first and second widths. A chip has opposite first and second ends in operative electrical connection with the first and second antenna portions, respectively, and is located between the outer sidewall and the substrate.

A self-inflating tire assembly includes an air tube connected to a tire and defining an air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to a regulator device. The regulator device regulates the inlet air flow to the air tube and the outlet air flow to the tire cavity.