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.

Date of Patent:
Dec. 26, 2023

Filed:

Jul. 19, 2022
Applicant:

Liqui-box Corporation, Richmond, VA (US);

Inventor:

Nicholas Farkas, Glenburnie, CA;

Assignee:

Liqui-Box Corporation, Richmond, VA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 7/08 (2019.01); B32B 27/32 (2006.01); B32B 27/30 (2006.01); B32B 7/12 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 7/08 (2013.01); B32B 7/12 (2013.01); B32B 27/306 (2013.01); B32B 27/327 (2013.01); B32B 2250/05 (2013.01); B32B 2250/24 (2013.01); B32B 2250/40 (2013.01); B32B 2250/44 (2013.01); B32B 2255/10 (2013.01); B32B 2270/00 (2013.01); B32B 2272/00 (2013.01); B32B 2307/306 (2013.01); B32B 2307/558 (2013.01); B32B 2307/72 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/732 (2013.01); B32B 2553/00 (2013.01);
Abstract

The disclosure provides ethylene/α-olefin interpolymer and/or copolymer based co-extruded, multi-layer films, including high barrier films and non-barrier films, and articles of manufacture that include the films, such as flexible bags and containers for flowable materials. The films and articles that include the films have good flex-crak resistance and toughness. The films and articles that include the films have good high barrier properties as the barrier films include a core layer of ethylene-vinyl alcohol (EVOH) copolymer. The relatively low amount of EVOH copolymer in the total film that is needed to achieve the flex-crack resistance, toughness, and high barrier properties, further allow for the recycling of the films and articles of manufacture.


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