The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 1991
Filed:
May. 04, 1989
Ajinomoto Co., Inc., Tokyo, JP;
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.