Plastic container and method for manufacturing the same

Details Plastic container and method for manufacturing the same Plastic container and method for manufacturing the same

1989-05-04

1991-09-03

Seidleck, James

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

220453, 428 364, 4284755, 428480, 428518, 428520, B65D 2500

Patent

active

050453696

ABSTRACT:
A container substantially made of plastic materials and having a gas barrier property. The container has a wall including a laminated sheet which comprises an inner layer and an outer layer both made of a thermoplastic material and an intermediate barrier layer between the inner and outer layers and made of a resin material of which gas barrier property can be improved by stretching. The intermediate layer is held between the inner and outer layers in a stretched state. A rigid layer of a large thickness may be provided outside the outer layer. In manufacturing the container, the intermediate layer may be in a stretched state when the laminate is provided. The rate of stretching can be increased when the laminated sheet is formed into the shape of the container.

REFERENCES:
patent: 4511610 (1985-04-01), Yazaki et al.
patent: 4526823 (1985-07-01), Farrell et al.
patent: 4705708 (1987-11-01), Briggs et al.
patent: 4713296 (1987-12-01), Aoyama et al.
patent: 4792488 (1988-12-01), Shirmer

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