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:
Jul. 14, 2026
Filed:
Jul. 09, 2024
Applicant:
Constantia Pirk Gmbh & Co. KG, Pirk, DE;
Inventors:
Assignee:
CONSTANTIA PIRK GMBH & CO. KG, Pirk, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 48/16 (2019.01); B29C 48/18 (2019.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 7/12 (2006.01); B32B 27/30 (2006.01); B32B 27/34 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B29C 48/16 (2019.02); B29C 48/18 (2019.02); B32B 27/32 (2013.01); B32B 7/12 (2013.01); B32B 27/306 (2013.01); B32B 27/34 (2013.01); B32B 2307/514 (2013.01); B32B 2439/46 (2013.01); B32B 2439/70 (2013.01);
Abstract
According to an aspect of the present disclosure, a method for producing a multi-layer plastic may include coextruding a first laminate with a substrate layer having an HDPE content of at least 60% by volume; a barrier layer having a barrier polymer and having a thickness of at most 20% of a total thickness of the first laminate; and a connecting layer between the substrate layer and the barrier layer; stretching the coextruded first laminate in a machine direction only; and connecting a second laminate having a polyethylene content of at least 80% by volume to the barrier layer of the stretched first laminate.