B29L2030/002

Rubber composition and tire

Provided is a rubber composition that achieves both wet performance and low loss property while delivering excellent dry handling performance. A rubber composition comprises: a rubber component; and a styrene-alkylene block copolymer, wherein a total styrene content of the styrene-alkylene block copolymer is 30 mass % or more.

Dual compound extruder apparatus with rotatable head

One or more embodiments of the present invention provide an apparatus for applying a mixture of a first compound and a second compound, the apparatus comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel, and a coextruded continuous strip is produced. The ratio of the first compound to the second compound may be adjusted instantaneously.

Method for manufacturing a pneumatic tire with an improved tread

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.

BONDING RUBBER AND PLASTIC SURFACES DURING INJECTION MOLDING
20220347899 · 2022-11-03 ·

An injection molded composite comprising a first bonding surface of a diene rubber composition bonded to a second bonding surface of a polar thermoplastic elastomer composition. There may be no more than 25% of the bonding surfaces having an adhesive applied to them or alternatively, no adhesive is applied. Furthermore, the polar thermoplastic elastomer composition was injected against the first bonding surface to form the second bonding surface and the first bonding surface has an active halogen moiety.

Tire disruptor device
11478946 · 2022-10-25 · ·

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.

Method for manufacturing an improved pneumatic tire

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.

ACTINIC RADIATION CURABLE POLYMERIC MIXTURES, CURED POLYMERIC MIXTURES AND RELATED PROCESSES

The present disclosure is directed to actinic radiation curable polymeric mixtures, cured polymeric mixtures, tires and tire components made from the foregoing, and related processes.

Method and apparatus for forming tire components using a coextruded strip

One or more embodiments of the present invention provide an apparatus for applying a mixture of a first compound and a second compound, the apparatus comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel, and a coextruded continuous strip is produced. The ratio of the first compound to the second compound may be adjusted instantaneously.

LINING ELEMENT OF A CURING MOLD FOR A TIRE COMPRISING SIPE BLADES

A lining element (16) of a curing mold (10) for a tire forms a molding surface (14), the molding surface comprising recessed and protruding patterns, at least one first protruding pattern (30) being formed by a first sipe blade (32) with a cross section in the form of a fork (34), and at least one second protruding pattern (36) being formed by a second sipe blade (38) and by a bulge (40) extending along a radially internal contour (42) of the second sipe blade, at least one recessed pattern being partially delimited by at least one first protruding pattern (30) and at least one second protruding pattern (36).

Actinic radiation curable polymeric mixtures, cured polymeric mixtures and related processes

The present disclosure is directed to actinic radiation curable polymeric mixtures, cured polymeric mixtures, tires and tire components made from the foregoing, and related processes.