Process for making multilayered containers

Details Process for making multilayered containers Process for making multilayered containers

1979-07-19

1982-01-05

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264513, 264538, 425523, 425533, B29C 1707

Patent

active

043093809

ABSTRACT:
A process for forming a hollow multilayered thermoplastic article utilizing a liner and a core rod formed at least in part of a porous metal and having a blow slot. A vacuum is applied to the liner through the porous metal part of the core rod and optionally the blow slot and blowing pressure is applied through the blow slot.

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patent: 3277223 (1966-10-01), Curto
patent: 3342914 (1967-09-01), Edwards
patent: 3507005 (1970-04-01), Wiley et al.
patent: 3717544 (1973-02-01), Valyi
patent: 3787157 (1974-01-01), Valyi
patent: 3947205 (1976-03-01), Edwards

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