Method of forming container with high-crystallinity sidewall and

Details Method of forming container with high-crystallinity sidewall and Method of forming container with high-crystallinity sidewall and

1996-05-24

1998-11-03

Timm, Catherine

Bottles and jars

End wall structure

One-piece side and end wall

220606, 220609, 428 357, 428 3692, B65D 102

Patent

active

058296140

ABSTRACT:
A method of making a polyester container having an enhanced level of crystallinity in the sidewall while maintaining a low level of crystallinity in a thickened base portion. The container is particularly useful as a refillable container which can withstand higher caustic wash temperatures and exhibits reduced flavor carryover, or as a hot-fill container. According to the method, a sidewall-forming section of a preform is initially expanded, heated to contract and crystallize the same, and than reexpanded; a base-forming portion of the preform is shielded from the heat treatment and is expanded either before or after the heat treatment step.

REFERENCES:
patent: 4233022 (1980-11-01), Brady et al.
patent: 4334627 (1982-06-01), Krishnakumar et al.
patent: 4385089 (1983-05-01), Bonnebat et al.
patent: 4550007 (1985-10-01), Ohtsi et al.
patent: 4584158 (1986-04-01), Nilsson et al.
patent: 4704243 (1987-11-01), Nilsson et al.
patent: 4710118 (1987-12-01), Krishnakumar et al.
patent: 4725464 (1988-02-01), Collette et al.
patent: 4755404 (1988-07-01), Collette et al.
patent: 4836971 (1989-06-01), Denis et al.
patent: 4853171 (1989-08-01), Aimera
patent: 4863046 (1989-09-01), Collette et al.
patent: 4871507 (1989-10-01), Aimera
patent: 4927679 (1990-05-01), Beck
patent: 5066528 (1991-11-01), Krishnakumar et al.
patent: 5178816 (1993-01-01), Suzuki et al.
patent: 5281387 (1994-01-01), Collette et al.
patent: 5520877 (1996-05-01), Collette et al.

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