Process for manufacturing foam-filled extruded products

Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling rate of movement of molding material or its...

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264 459, 264 466, 264148, B29C 4424

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active

057283303

ABSTRACT:
A process for fabricating an article having a rigid foam core and a resilient outer plastic shell by extruding a heated thermoplastic material to form the shell, partially hardening the extruded plastic shell, injecting a liquid foam material into the interior of the partially hardened plastic shell, and cooling the shell and the liquid foam material to fully harden the plastic shell and the foam under conditions which cause the article to have a predetermined shape and size.

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