A cord (1) for use in an elastomer product, preferably in a pneumatic tire, comprising a reinforcement system (2) which is made of an electrically nonconductive material and which is sheathed by an electrically conductive layer (5).

Located on the electrically conductive layer (5), covering same, there is a further, electrically insulating layer (6).

A vehicle tire includes tread blocks with a substantially-horizontal upper/top surface, a first pair of downward-sloping surfaces, a pair of horizontal shoulder surfaces, and a second pair of downward-sloping surfaces. The first pair of downward-sloping surfaces begins and slopes downward and outward from the upper/top surface. Each of the horizontal shoulder surfaces begins and extends outward from one of said first pair of downward-sloping surfaces. The second pair of downward-sloping surfaces begins and slopes downward and outward from the horizontal shoulder surfaces.

The present invention provides a pneumatic tire having excellent durability. Provided is a pneumatic tire including at least one steel belt layer, at least one cap ply layer, and at least one carcass layer, the steel belt layer including a steel belt topping rubber composition which has a zinc oxide content of 8.0 parts by mass or more per 100 parts by mass of the rubber component, the cap ply layer including a cap ply topping rubber composition, the carcass layer including a carcass topping rubber composition, the cap ply topping rubber composition and the carcass topping rubber composition both having stearic acid and zinc oxide contents, each per 100 parts by mass of the rubber component, which satisfy the following relationships (1) and (2):

stearic acid content3.0 parts by mass,(1):

stearic acid content/zinc oxide content0.5.(2):

Provided are a pneumatic tire with improved air dispersibility in a reinforcing layer including steel cords during vulcanization and with effectively suppressed blistering, and a method of manufacturing the same. In the pneumatic tire according to the present technology including a reinforcing layer (10) including a plurality of aligned steel cords (11) coated with coating rubber (12), at least one thread (13) for extending in a longitudinal direction of the steel cords (11) is disposed between the steel cords (11) in the coating rubber (12).

A hybrid cord for a tire, a method of manufacturing the same, and a high-performance environment-friendly radial tire including the same are disclosed herein. The hybrid cord includes a high-modulus fiber ply and a low-modulus fiber ply. The hybrid cord has a stress-strain curve including an initial modulus section, an intermediate modulus section and a final modulus section. The initial modulus of the initial modulus section is higher than the intermediate modulus of the intermediate modulus section, and the final modulus of the final modulus section is higher than the intermediate modulus.

In a tire 2, a band 14 has a helically wound structure in which a strip 26 having a cord 28 is wound in a circumferential direction. The band 14 includes a center portion C disposed at a center in an axial direction, and a shoulder portion S disposed outward of the center portion C in the axial direction. A pitch Pc of the strip 26 in the center portion C is not less than 2.0 times a width W of the strip 26 and not greater than 2.5 times the width W. A pitch Ps of the strip 26 in the shoulder portion S is not less than 0.8 times the width W of the strip 26 and not greater than 1.2 times the width W.

The present invention is directed to a method of making a cord-reinforced rubber article, comprising the steps of A) mixing a carrier gas, sulfur and an alkyne, to form a gas mixture; B) generating an atmospheric pressure plasma from the gas mixture; C) exposing a steel reinforcement cord to the atmospheric pressure plasma to produce a treated reinforcement cord; and D) contacting the treated steel reinforcement cord with a rubber composition comprising a diene based elastomer.

The invention relates to a tire having at least one carcass reinforcement comprising reinforcers, surmounted radially on the outside by a crown reinforcement, itself radially on the inside of a tread, said crown reinforcement being made up of at least one layer of reinforcement elements, said tread being connected to two beads by way of two sidewalls, said beads being intended to come into contact with a rim flange having a rim flange top C, each bead having at least one circumferential reinforcement element, said carcass reinforcement comprising an end at each bead, the end of the carcass reinforcement being turned up once in an outward radial direction of the tire and about said bead wire, so as to form a turnup, then being folded in said radially inward direction so as to form a fold forming a radially external end and three adjacent parts along an axial axis made up of a central part, of an axially internal lateral part, and of an axially external lateral part. The tire is characterized in that the radially external end of the turnup is disposed between the rim flange top C and a point D, said points C and D being situated at the surface of the sidewall and disposed on either side of a point E situated on the sidewall corresponding to the nominal section width, said point D being disposed at a maximum radial length equal to 85% of the length present between the axial end S of the crown reinforcement and the rim flange top C.

The present invention is directed to a method of making a cord-reinforced rubber article, comprising the steps of A) mixing a carrier gas, a sulfur-containing compound and an alkyne, to form a gas mixture; B) generating an atmospheric pressure plasma from the gas mixture; C) exposing a reinforcement cord to the atmospheric pressure plasma to produce a treated reinforcement cord; and D) contacting the treated reinforcement cord with a rubber composition comprising a diene based elastomer.

A pneumatic tire includes a tread portion; sidewall portions; bead portions; a carcass layer disposed extending between the pair of bead portions; a belt layer of a plurality of layers disposed on an outer circumferential side of the carcass layer in the tread portion; and a band-like noise absorbing member adhered to a region corresponding to a tire inner surface of the tread portion along the tire circumferential direction interposed by an adhesive layer. The pneumatic tire further includes a belt cover layer being disposed on an outer circumferential side of the belt layer across an entire width of the belt layer, the belt cover layer including organic fiber cords arranged in the tire circumferential direction; and a rate of change of a dynamic loaded radius when traveling at 270 km/h with respect to a dynamic loaded radius when traveling at 30 km/h being restricted to 2.0% or less.