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. 23, 1985
Filed:
Jan. 20, 1983
Applicant:
Inventor:
Anders R Rausing, Lausanne, CH;
Assignee:
Tetra Pak Developpement SA, Pully, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
156203 ; 156218 ; 156229 ; 15624424 ; 15624427 ; 1563084 ; 156311 ; 156322 ; 156498 ;
Abstract
A method for joining together laminated material including layers of orientation-stretched polyester and glycol-modified polyester. A strand of molten glycol-modified polyester is applied to the laminated material along the joining area and the laminated material is pressed together while the strand is cooled. The laminated material is joined together by transferring heat from the molten strand to the pressed-on layers of the laminate. The surface portions of the layers are melted at the same time as the strand is cooled.