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:
Feb. 06, 1996
Filed:
Mar. 18, 1994
Applicant:
Inventor:
Thorbjorn Andersson, Sodra Sandby, SE;
Assignee:
Tetra Laval Holdings & Finance S.A., Pully, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
4283142 ; 4283175 ; 4283177 ; 4283191 ;
Abstract
Packaging material with good gas barrier properties comprising a skeletal layer and a gas barrier layer of a material with low elasticity, e.g. Al foil, which is placed against one side of the skeletal layer and which is bound to the skeletal layer with the aid of an intermediate layer of binding agent. The layer of binding agent consists of a compressible material, preferably an expanded or foamed polyolefin, which is arranged to compress with the aim of reducing the tensile strains acting on the Al foil when the material is shaped by folding during manufacture of the packaging.