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. 20, 1983
Filed:
Aug. 20, 1982
Applicant:
Inventor:
Peter Petersen-Hoj, Espergarde, DK;
Assignee:
Tetra Pak Developpement SA, , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B28B / ; B32B / ;
U.S. Cl.
CPC ...
15624411 ; 15624424 ; 264 459 ; 2641 / ; 428213 ; 428480 ;
Abstract
The invention relates to a laminated material, the main layer of which consists of a molecular-oriented polyester material which has very good tensile strength characteristics and a sealing layer joined to the main layer of a modified polyester material of the type which is marketed under the trade name PETG and which retains its sealing characteristics in spite of the laminated material being subjected to a joint molecular-oriented stretch