Method of producing a cup-shaped, sterilizable container

Details Method of producing a cup-shaped, sterilizable container Method of producing a cup-shaped, sterilizable container

1991-04-17

1993-03-16

Arbes, Carl J.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

156 69, 156212, 156224, 156229, 206538, B21B 146

Patent

active

051932652

ABSTRACT:
A method of producing a cup-shaped sterilizable container from a stretch-drawable composite laminate of a total wall thickness between 30 and 200 .mu.m with an aluminum foil of a thickness less than 40 .mu.m, a sealable plastic inner layer of high extensibility and a plastic outer layer of high extensibility and load-bearing capacity, the side wall of the container running at a side wall angle (a) with respect to the direction perpendicular to the container bottom, is distinguished in that the composite laminate is deep drawn free from folds at a side wall angle of 30.degree. using smooth-walled forming tools then combined deep/stretch drawn and subsequently stretch drawn.

REFERENCES:
patent: 3349153 (1967-10-01), Beck
patent: 3444022 (1969-05-01), Bichsel
patent: 3654012 (1972-04-01), Schlager
patent: 3894896 (1975-07-01), Watanabe
patent: 4559257 (1985-12-01), Nilsson
patent: 5087311 (1992-02-01), Elliott et al.

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