A pneumatic tire having a bead filler molded over a bead bundle to form an over-molded bead. The bead bundle may include at least one bead wire. The bead bundle may be over-molded with the bead filler, forming an over-molded bead. The over-molded bead may be formed into a variety of shapes and may be constructed from a variety of materials.

Various systems and apparatuses for heating molds, including for example tire molds, are disclosed. Heating of molds may be effected via induction heating technology. In one embodiment, a system for heating a tire mold is provided, the system comprising: a tire mold formed from a mold material having a base material relative permeability, wherein the tire mold includes a mold surface for contacting a tire, the mold surface for contacting a tire having a mold surface for contacting a tire relative permeability, wherein the tire mold includes a mold back oriented substantially opposite the mold surface for contacting a tire, and wherein the mold surface for contacting a tire relative permeability is greater than the base material relative permeability.

Various systems and apparatuses for heating molds, including for example tire molds, are disclosed. Heating of molds may be effected via induction heating technology. In one embodiment, a system for heating a tire mold is provided, the system comprising: a tire mold formed from a mold material having a base material relative permeability, wherein the tire mold includes a mold surface for contacting a tire, the mold surface for contacting a tire having a mold surface for contacting a tire relative permeability, wherein the tire mold includes a mold back oriented substantially opposite the mold surface for contacting a tire, and wherein the mold surface for contacting a tire relative permeability is greater than the base material relative permeability.

A fully automated bead filler production line system and a fully automated bead filler molding and attaching method, implementing highly efficient production of bead filler in order to solve the problem in traditional production lines of large occupied area and low efficiency. To achieve said goal, the solution is to provide a fully automated bead filler production line system, comprising: a bead filler molding processing section, a functional auxiliary section, a filler and bead molding processing section, and automated material flow sections. The bead filler molding processing section, the functional auxiliary section, and the filler and bead molding processing section are sequentially linked, and two material flow sections are provided, on either side of the filler and bead molding processing system respectively.

A fully automated bead filler production line system and a fully automated bead filler molding and attaching method, implementing highly efficient production of bead filler in order to solve the problem in traditional production lines of large occupied area and low efficiency. To achieve said goal, the solution is to provide a fully automated bead filler production line system, comprising: a bead filler molding processing section, a functional auxiliary section, a filler and bead molding processing section, and automated material flow sections. The bead filler molding processing section, the functional auxiliary section, and the filler and bead molding processing section are sequentially linked, and two material flow sections are provided, on either side of the filler and bead molding processing system respectively.

A polyurea comprises at least urea base units of formula —NH—CO—NH— and additional units. The additional units comprise at least, on the one hand, a secondary alcohol functional group and, on the other hand, an ether, thioether or secondary amine functional group in the alpha position with respect to the secondary alcohol functional group. Such a polymer can be used as an adhesion primer for the adhesive bonding of a substrate, for example, glass or metal, to an unsaturated rubber or as corrosion-resistant protective coating for a metal substrate. Metal reinforcers, such as thread, cord, film or plate, coated can also be coated with such a polymer.

A polyurea comprises at least urea base units of formula —NH—CO—NH— and additional units. The additional units comprise at least, on the one hand, a secondary alcohol functional group and, on the other hand, an ether, thioether or secondary amine functional group in the alpha position with respect to the secondary alcohol functional group. Such a polymer can be used as an adhesion primer for the adhesive bonding of a substrate, for example, glass or metal, to an unsaturated rubber or as corrosion-resistant protective coating for a metal substrate. Metal reinforcers, such as thread, cord, film or plate, coated can also be coated with such a polymer.

A method for manufacturing pneumatic tire of the present disclosure, the method comprising: a first step of pressure-bonding a bead filler to an outer peripheral portion of an annular bead core, the bead filler being thinned outward of the bead core in a radial direction, and fabricating an annular bead member; a second step of causing a separator to support the bead filler, and mounting the bead member so that the radial direction of the bead core goes along a horizontal direction; and a third step of cooling the bead member.

A method for manufacturing pneumatic tire of the present disclosure, the method comprising: a first step of pressure-bonding a bead filler to an outer peripheral portion of an annular bead core, the bead filler being thinned outward of the bead core in a radial direction, and fabricating an annular bead member; a second step of causing a separator to support the bead filler, and mounting the bead member so that the radial direction of the bead core goes along a horizontal direction; and a third step of cooling the bead member.

A method of manufacturing a tire includes steps of: providing a shoulder drum that includes shoulders having a height of at least equal to 25 mm; placing a carcass ply of a green tire on the shoulder drum; providing a winding of circumferential bead reinforcers around each end of the carcass ply, each winding having a number of turns providing a winding of circumferential bead reinforcers against each shoulder of the shoulder drum, each winding being in a spiral; and forming the green tire such that each end of the carcass ply does not have a turnup around the circumferential bead reinforcers, and the circumferential bead reinforcers are positioned in the green tire in a defined layout.