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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.:

US 12569828 B1

PDFFull Text
Date of Patent:
Mar. 10, 2026

Filed:

Jan. 09, 2023

Oxygen-absorbing film

Applicant:

Toyo Seikan Group Holdings, Ltd., Tokyo, JP;

Inventors:

Kaori Shimano, Yokohama, JP;

Tomohiro Miyai, Yokohama, JP;

Hiroki Komagata, Yokohama, JP;

Takahiro Akahane, Yokohama, JP;

Assignee:

TOYO SEIKAN GROUP HOLDINGS, LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Brian A Mccaig

Int. Cl.
CPC ...
B01J 20/26 (2006.01); B01J 20/28 (2006.01); B32B 7/12 (2006.01); B32B 15/09 (2006.01); B32B 15/20 (2006.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01); B65D 65/40 (2006.01);
U.S. Cl.
CPC ...
B01J 20/262 (2013.01); B01J 20/28004 (2013.01); B01J 20/28035 (2013.01); B32B 7/12 (2013.01); B32B 15/09 (2013.01); B32B 15/20 (2013.01); B32B 27/08 (2013.01); B32B 27/36 (2013.01); B65D 65/40 (2013.01); B32B 2250/04 (2013.01); B32B 2255/06 (2013.01); B32B 2255/26 (2013.01); B32B 2307/31 (2013.01); B32B 2307/518 (2013.01); B32B 2307/5825 (2013.01); B32B 2307/702 (2013.01); B32B 2307/704 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/732 (2013.01); B32B 2553/00 (2013.01); B65D 2565/387 (2013.01);
Abstract

An oxygen-absorbing film including at least, from an outer layer side, a surface substrate layer having an oxygen barrier property, an oxygen-absorbing resin layer, and an inner surface substrate layer that contains a stretched PET substrate and is heat-sealable. The surface substrate layer, the oxygen-absorbing resin layer, and the inner surface substrate layer are laminated in this order. The oxygen-absorbing film provides an oxygen-absorbing film suitable as a packaging material that excels in oxidation suppression of packaging contents and in non-sorption of aroma components and also exhibits excellent tearability.

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