Abstract:
Provided is a pneumatic tire in which the performance is to be improved while suppressing an increase in the thickness by using a reinforcing material applicable to such an insert member or the like by which a target reinforcing performance can be attained while suppressing an increase in the thickness. Provided is a pneumatic tire including: a pair of bead portions 11; a pair of side wall portions 12; and a tread portion 13, and including a carcass layer 2 composed of at least one carcass ply extending toroidally between bead cores 1 embedded in the pair of bead portions respectively as a skeleton. A reinforcing layer 4 using a reinforcing material composed of a core/sheath-type composite fiber (C) in which a core portion is made of a high melting point polyolefin-based resin (A) having a melting point of 150° C. or higher and a sheath portion is made of a low melting point polyolefin-based resin (B) having a melting point of 80° C. or higher and lower than 150° C. is provided on at least the outside of the bead core in the tire radial direction.
Abstract:
Rubber composite, and in particular tyre, reinforced with a sized textile material, such as a fibre or a film, at least one portion of which is coated with an adhesive layer, capable of adhering directly via curing (crosslinking) to an unsaturated rubber matrix, such as a natural rubber matrix, characterized in that said layer comprises an adhesive composition or thermoplastic adhesive, in the liquid or solid state, which is based on at least one unsaturated thermoplastic styrene (TPS) elastomer and a poly(p-phenylene ether) (PPE).Such an adhesive based on unsaturated TPS and PPE advantageously makes it possible to replace a conventional textile adhesive of RFL type. Use of such an adhesive for the adhesive bonding of a textile material to an unsaturated, in particular diene, rubber. Process for obtaining such a composite.
Abstract:
A tire is provided suppressing air incorporation and raising durability without a detrimental effect on running performance.A tire 10 includes a ring shaped tire case 17 formed from a frame resin material, with a reinforcement layer 28 formed by winding and joining a covered cord member 26, formed by a cord resin material 27 covering a reinforcement cord 26A, on a crown section 16 portion of the tire case 17. Accordingly air incorporation is suppressed and durability is raised without a detrimental effect on running performance.
Abstract:
A pneumatic tire carcass having at least one ply of stabilizing fabric. The stabilizing fabric has a machine direction and a cross machine direction. A plurality of high tenacity reinforcing yarn elements are disposed in the cross-machine direction. A plurality of machine direction yarn elements of relatively lower tenacity than the reinforcing yarn elements are disposed in the machine direction. A segment of the stabilizing fabric is disposed within the carcass with the machine direction yarn elements being in substantial alignment with the direction of tire rotation and with the cross-machine direction oriented radially relative to the direction of tire rotation.
Abstract:
A dewebbing unit and dip tank used in the treatment of tire cord fabric with a liquid coating containing an agent for increasing the bond between the cords of the fabric and rubber material used in the production of tires. The dip tank has a pair of weirs which the liquid coating is caused to overflow for contact with the tire cord fabric which is directed across the weirs. The dewebbing unit includes a chamber in which fluid, under pressure, is alternately passed through the fabric from opposing sides of the fabric to simultaneously vibrate the fabric and pass air through the pores of the fabric.
Abstract:
An aqueous alkaline dispersion of a rubbery vinyl pyridine copolymer, a stabilized colloidal silica sol, and a heat reactable resorcinol-formaldehyde resole, in certain amounts, is useful in forming an adhesive for bonding glass fiber reinforcing elements or cords to rubber compounds or stocks. After dipping the glass fiber cord in the one-step adhesive dip, the coated cord is heated to dry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing glass fiber cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured to form a composite in which the glass fiber cord is bonded to the rubber by means of said adhesive.
Abstract:
A tire breaker is formed from a cord on a gum base supported on a work belt. A rotor member is mounted above the work belt, and includes inner and outer cord engaging and laying means. Upon intermittent rotation of the rotor member, the cord engaging and laying means engage the cord, fold the same into successive side-by-side loops, and lay the loops on the gum base.
Abstract:
An apparatus used in the treatment of tire cord fabric. The apparatus has means for applying on the fabric a liquid coating which is a mixture of an agent for promoting the bond between the cords of the fabric and rubber material used in the production of tires, and a vaporizable solvent which is a carrier of the agent. The apparatus is provided with a drying chamber including a boiling sump for filling the chamber with vapor of a solvent which is similar to the solvent of the liquid coating. Radiant heaters are used for drying the fabric by evaporating solvent carrier on the fabric, and at least one condenser is supplied for condensing solvent vapor in the drying chamber.
Abstract:
An improved tire and tire cord which is made by treating polyester cord reinforcement by subjecting the tire cord to a first stage of heat treatment at a temperature in excess of 440* F. and for a period of 30 to 70 seconds while stretching the cord from 2 to 10 percent of its original length, followed by a second stage of heat treatment at a temperature also in excess of 440* F., and preferably higher than the temperature of the first stage, with an exposure time of 30 to 70 seconds and with the cord being permitted to shrink by 30 to 50 percent of the amount that it was stretched in the first stage treatment. An improved tire cord results. The foregoing abstract is not to be taken as limiting the invention of this application, and in order to understand the full nature and extent of the technical disclosure of this application, reference must be made to the accompanying drawings and the following detailed description.