Self-sustaining container

Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Differential temperature conditioning

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264903, 264907, 215371, 215376, 428 357, 428 3692, 428910, B29C 3502

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active

058583009

ABSTRACT:
A self-sustaining container made of a saturated polyester resin, formed by biaxial stretch blow molding and comprising a mouth and cervical portion, a shoulder, a body and a bottom, wherein said bottom has a self-sustaining structure with a plurality of legs radially bulged around the center of the bottom and valley lines formed between the adjacent legs, and the following portions (A) to (E) are low stretched portions and at least portions (B) and (C) among the following portions (A) to (E) are crystallized portions:

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Opposition issued in corresponding Taiwan Patent Application No. 83112327, published Oct. 1, 1996, w/English Translation.

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