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:
Apr. 04, 1989
Filed:
Jul. 22, 1986
Applicant:
Inventor:
William F Ossian, Appleton, WI (US);
Assignee:
American National Can Company, Chicago, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428216 ; 428349 ; 4284758 ; 4284761 ; 428516 ; 428910 ; 428354 ; 428522 ;
Abstract
A multiple layer sheet structure has oriented layers of nylon and EVOH. Additional layers may or may not be utilized, and may or may not be oriented. Where additional layers are used, one of the additional layers, on the exterior surface of the structure, is preferably heat sealable. The structure shows improved impact resistance, after retort processing, over similar structures not having oriented nylon and EVOH layers. In certain embodiments, retort processed pouches made from the packaging structures have improved stress crack resistance when dropped onto a hard surface.