The method comprises the steps of a) forming a carcass composed of a cured rubber material and b) overmolding, on the carcass, at least one thermoplastic elastomer material in order to finish the pneumatic tire.

Disruptor device consisting in a frame said frame (F) having a Water Jet system to disaggregate one portion a tread or a sidewall of a tire, an hydraulic power unit, a control cabinet with PLC and control panel, a lower assembly, an upper assembly, an hopper for collection of fragmented materials and a vibrating screen, a group for the forced ventilation system and the air/water separation wherein the upper assembly consists on a frame divided in two identical first half-frame and second half-frame (20b); the upper assembly is supported to the frame (F) by two arms (la, lb); the upper assembly (9) presents a series of rollers (14) and a movable plate (24) positioned on each half-frame (20a, 20b) between two of these rollers (14) and supporting an upper nozzles head (18) supplied by high pressure water through a piping system; the lower assembly (2) presents a set of rollers (15) mounted on a fixed frame (22); in the space between two of rollers (15) scrolls a slide (24) for nozzle-head (21) that supports one or more, left and right, lower nozzles (23) supplied by high pressure water through a piping system.

The method includes the step of forming a carcass from at least one first material based on a thermoplastic elastomer. The method continues with the step of forming, on the carcass, at least bead zone from at least one second material based on a thermoplastic elastomer to form an assembly. The method proceeds with the step of forming, on the assembly an additional part from at least one third material based on a thermoplastic elastomer.

A standardization system for the manufacture of tires is provided. The same size tire components can be used in the summit of tires having different sizes i.e., tires having different section widths, sidewall heights, and/or aspect ratios. A matrix of tire sizes can be associated with one or more tire summit parameters. The matrix can be used for the manufacture of tires having one or more standardized components by holding substantially constant the value of one or more tire summit parameters across a diagonal of the matrix.

Machine for recycling tyres by recovering the tyre tread rubber using waterjets. The machine comprises a loading unit for loading a tread, a processing unit, the processing unit comprising a framework comprising a preprocessing zone, a processing zone and a postprocessing design. The preprocessing zone drives a cut tread towards the processing zone. The processing zone comprises a processing module designed to direct a waterjet onto the recovered tread. The preprocessing zone comprises motorized guide rollers and presence sensors arranged in such a way as to allow a second tread to catch up with a first tread in such a way as to reduce, to the point of closing up, the space between two treads.

A tyre strip extrusion apparatus includes extruders and an extrusion head which includes a head housing having feed openings respectively connected to the extruders for feed of extrusion material. An injection moulding tool is connected to the head housing and includes a profile plate formed with an outlet opening which communicates with the feed openings for extrusion material to flow from the feed openings to the outlet opening for extruding a web from the extrusion material. Bearing against the head housing along a first parting surface is a first distributor plate. A second distributor plate is arranged upstream of the profile plate in flow direction of the extrusion material. The first distributor plate bears along a second parting surface against the second distributor plate. The first and second distributor plates are configured such that at least a majority of the material paths runs through the first and second parting surfaces.

A head (50), for the co-extrusion of a complex rubber profiled element, includes a lower wall (56) of cylindrical profile, a first extrusion unit (B60) having a first extrusion duct (60) divided into various sub-ducts (60-1, 60-2, 60-3, 60-4), a first profiling blade (62) defining a first shaping profile (P62) that is discontinuous, a second extrusion unit (B64) including a second extrusion duct (64) divided into various sub-ducts (64-1, 64-2, 64-3, 64-4), a second profiling blade (66) including at least one tooth (67-1, 67-2, 67-3) situated in the continuation of a divider (72-1, 72-2, 72-3), and this second profiling blade (P66) incorporating at least one third extrusion duct, each outlet of a third extrusion duct closely adjoining a tooth (67-1, 67-2, 67-3) of the second profiling blade (66), and a third profiling blade (74) defining a final shaping profile (P74).

A method of recycling a thermosetting polymer object of arbitrary shape includes: operating a fixture device to hold and rotate the thermosetting polymer object; operating a smart and modularized water jet cutter device to shatter the thermosetting polymer object outside-in into a wet polymer powder; drying the wet polymer powder; flattening the partially dried wet polymer powder; completely drying the flattened wet polymer powder; and separating the dried polymer powder into first and second groups, the particle size of the first group dried polymer powder being greater than a predetermined value, the particle size of the second group fried polymer powder being not greater than the predetermined value.

A method for producing a tire sidewall rubber member according to an embodiment comprises: a first kneading step of preparing a first kneaded product by kneading a diene rubber, carbon black, a compound represented by formula (I) (wherein R.sup.1 and R.sup.2 represent a hydrogen atom, an alkyl group, an alkenyl group or an alkynyl group, and M.sup.+ is Na.sup.+, K.sup.+ or Li.sup.+), and zinc oxide; and a second kneading step of adding wax and/or stearic acid to the first kneaded product, followed by kneading. Thus, low heat generation properties are improved while suppressing the deterioration of tear resistance. ##STR00001##

The method comprises the steps of a) forming a carcass composed of a cured rubber material and b) overmolding, on the carcass, at least one thermoplastic elastomer material in order to finish the pneumatic tire.