Apparatus for making a multi-layered blown plastic container

Details Apparatus for making a multi-layered blown plastic container Apparatus for making a multi-layered blown plastic container

1982-05-21

1983-11-08

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Utilizing laminated parison

B29C 1707, B29D 900

Patent

active

044139748

ABSTRACT:
A multi-layered blown plastic container is formed by injection molding a first thermoplastic parison, axially stretching the first parison at its orientation temperature, injection molding a second thermoplastic parison around the first parison, and blowing the multi-layered parison at its orientation temperature to provide an oriented container, the inner layer being oriented in the axial and hoop directions, and the outer layer oriented in the hoop direction.

REFERENCES:
patent: 3878282 (1975-04-01), Bonis et al.
patent: 4267143 (1981-05-01), Roullet

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