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AssigneeCompagnie Generale Des Etablissements Michelin
InventorsChristophe Ougier, Arnaud Letocart
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An installation for producing a profiled band based on several mixtures of elastomers of a different composition by means of coextrusion. The installation includes at least two extruders for supplying a mixture of elastomers to an extrusion head. The extrusion head comprises an assembly of at least two plates which are arranged side by side. Each plate having at least one cavity which enables the mixture from an extruder to be chaneled towards an outlet hole. The plates are arranged substantially transversely relative to the output direction of the mixture flows of the extruders in order to produce a discharge at approximately 90° of the mixture flow at the outlet of the screw of each extruder.
An installation for producing a profiled band based on several mixtures of elastomers of a different composition by means of coextrusion, comprising at least two extruders for supplying a mixture of elastomers to an extrusion head, the extrusion head comprising an assembly of at least two plates which are arranged side by side, each plate comprising at least one cavity which enables the mixture from an extruder to be channelled towards an outlet hole, wherein the plates are arranged substantially transversely relative to the output direction of the mixture flows of the extruders.
A method of producing a profiled band based on a plurality of mixtures of elastomers of different composition by means of coextrusion using at least two extruders which supply a mixture of elastomer to an extrusion head, the method comprising the steps of:
Dependencies are inferred from the claim text.