Method for production of poly(ethylene terephthalate) articles

Details Method for production of poly(ethylene terephthalate) articles Method for production of poly(ethylene terephthalate) articles

1983-11-28

1985-06-11

Silbaugh, Jan

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

264535, B29C 1707

Patent

active

045227799

ABSTRACT:
Improved plastic containers and process for their production are disclosed. In one embodiment, containers are blow molded in a first hot blow mold, then reblown to a larger size in a second cold mold of larger volume than the first hot mold. Such containers have improved physical properties, particularly very high hoop yield stresses. In a second embodiment, containers are blow molded in a hot blow mold, then reblown to a larger size in a second hot blow mold. Such containers show high resistance to shrinkage and gross deformation in shape upon exposure to high temperatures.

REFERENCES:
patent: 4108937 (1978-08-01), Martinen et al.
patent: 4385089 (1983-05-01), Bonnebat et al.

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