Injection molding apparatus for forming film covered inserts for

Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – Molding of thermosetting or cross-linking stock

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Details

249149, 264 464, 264 465, 264 466, 264261, 2643288, 26432812, 425127, 425817R, B29C 4516, B29C 4532, B29C 6722

Patent

active

048060941

ABSTRACT:
A composite plastic product is formed by a process which includes formation of a preform of high strength plastic having openings formed therethrough which are covered by a film barrier that is formed during molding of the preform; and wherein the preform is configured to be placed as a unit in a foam station at which material is foamed onto the insert without escape to its backside.

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patent: 4529639 (1985-07-01), Peoples, Jr. et al.
patent: 4729863 (1988-03-01), Muller et al.

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