Biaxially oriented crystalline resin container and process of ma

Details Biaxially oriented crystalline resin container and process of ma Biaxially oriented crystalline resin container and process of ma

1991-09-30

1997-07-15

Acquah, Samuel A.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 357, 428 366, 215370, B29D 2200

Patent

active

056481330

ABSTRACT:
A resin container has a bottom structure which has a central recessed portion containing substantially no crystal, a marginal raised portion crystallized by molecular orientation, and an intermediate ring-shaped portion crystallized to have spherulite-like crystals.
The bottom structure highly improves the heat-resistance at the intermediate portion, while maintaining the central recessed portion at a good impact-resistance.

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