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:
Feb. 09, 1988
Filed:
Feb. 21, 1984
Applicant:
Inventor:
Joseph Z Sun, Feng Shan, Taiwan 830, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 35 ; 428421 ; 4284758 ; 4284761 ; 428483 ; 428518 ;
Abstract
A novel process for manufacturing a container achieved by coextruding a middle tube of material having a low oxygen transmission rate between outer and inner tubes of olefin polymer to form a multilayered tubular unit. The outer tube is cross linked and the unit is biaxially oriented to a desired size. The inner tube is sealed to itself to complete formation of the container which includes an inner layer of olefin polymer, a middle layer of material having low oxygen permeability, and a relatively strong outer layer of cross linked olefin polymer.