Process for heat treating thermoplastic containers

Details Process for heat treating thermoplastic containers Process for heat treating thermoplastic containers

1993-03-17

1995-05-30

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Differential temperature conditioning

264529, 264530, 425526, B29C 4918, B29C 4964

Patent

active

054198666

ABSTRACT:
The process selectively crystallizes a molecularly oriented thermoplastic container composed of portions thereof with different degrees of orientation. Portions of the container are heat treated at temperatures suitable to crystallize said portions according to the degrees of orientation thereof wherein the heat treatment takes place in a heating environment on an unconfined container. The selectively crystallized container is then sized in a finishing means.

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