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:
May. 26, 1992
Filed:
Jul. 18, 1991
Applicant:
Inventor:
Debora F Massouda, Silver Spring, MD (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 342 ; 156 82 ; 15624423 ; 428349 ; 428513 ;
Abstract
A heat-sealable paperboard laminate for liquid packaging which does not transmit nor absorb oxygen or flavor and odor ingredients comprises paperboard sandwiched between two layers of heat-sealable low density polyethylene polymer (LDPE) and including a three-component product-contact barrier layer coextruded onto the inner layer of LDPE. The barrier layer comprises ethylene vinyl alcohol copolymer (EVOH)/a tie layer (Plexar 177 or 175)/ low density polyethylene polymer (LDPE).