Multilayered container and method for making

Details Multilayered container and method for making Multilayered container and method for making

1988-05-12

1990-07-10

Seidleck, James

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

215 1C, 428 367, 428215, 428480, B65D 2300, B32B 2736

Patent

active

049406167

ABSTRACT:
Anti-gas permeation property and impact strength of a container such as a bottle which is made of polyethylene terephthalate resin by biaxially orienting blow molding are improved by using a multilayered structure of the polyethylene terephthalate and the other polyester of a dicarboxylic acid component containing a specific amount of isophthalic acid and a glycol component. The container is made preferably by preparing a preform which is a laminate of the polyethylene terephthalate and the other polyester in the molten state under pressure, and by biaxially orienting blow molding the preform.

REFERENCES:
patent: 4398642 (1983-08-01), Okudaira et al.
patent: 4482586 (1984-11-01), Smith et al.
patent: 4551368 (1985-11-01), Smith et al.

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