US 11,505,001 B2 · Method for forming tire components

Abstract

One or more embodiments of the present invention provide a method for applying a dual compound coextruded continuous strip of a first compound and a second compound, the method 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.

Claims10

Dependent claims

A method for forming a coextruded strip of a first compound and a second compound, the method comprising the steps of:

extruding a first compound through a first extruder and a first gear pump and into a first passageway of a coextrusion nozzle while extruding a second compound through a second extruder and a second gear pump and into a second passageway of the coextrusion nozzle;
and
forming a continuous coextruded dual compound strip,
wherein the coextrusion nozzle has an insert having a diamond-shaped cross-section at an inlet end that transitions to a rectangular cross-section at a distal end that tapers to a nose, wherein the insert divides the coextrusion nozzle into the first and second passageways.

1 more element

Dependencies are inferred from the claim text.

Method for forming tire components

Life of this patent

Method for forming tire components

Life of this patent

Abstract

Claims10