Extrusion/reaction injection molding system

Details Extrusion/reaction injection molding system Extrusion/reaction injection molding system

2007-10-16

2007-10-16

Heitbrink, Tim (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

C425S00400R, C425S131100, C425S81700C

Reexamination Certificate

active

11000171

ABSTRACT:
A method of manufacturing an extruded part having an exterior shell and a core foam material. The method includes extruding the exterior shell from an extrusion die, and reaction injection molding the core foam material within an interior of the exterior shell using a distribution block having a plurality of orifices configured to inject the core foam material within the interior of the exterior shell. The orifices are configured to evenly distribute the core foam material throughout the interior of the exterior shell. the method can be used to form an exterior shell having a plurality of internal chambers, where the orifices of the distribution block are configured to inject core foam material within the plurality of internal chambers.

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