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:
Dec. 28, 1993
Filed:
Jan. 16, 1990
Applicant:
Inventors:
Donald R Hazelton, Chatham, NJ (US);
Lawrence K Locke, Seabrook, TX (US);
Assignee:
Exxon Chemical Patents Inc., Linden, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B65D / ;
U.S. Cl.
CPC ...
428 347 ; 428 349 ; 428 352 ; 428495 ; 428493 ; 428494 ; 428516 ; 428517 ; 428523 ;
Abstract
A seal layer for use in heat sealed containers, especially retortable polymer containers. A semirigid or rigid packaging container with a multilayer laminate heat sealed to a tray flange, the laminate having a barrier layer and the lidding being easily opened by cohesive failure of a layer containing as elastomer. The elastomer is preferably PIB in a heat seal film layer on a polypropylene tray.