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:
Feb. 11, 2025

Filed:

Aug. 04, 2020
Applicant:

Amcor Flexibles North America, Inc., Neenah, WI (US);

Inventors:

James R. Lamb, Neenah, WI (US);

Carol W. Umphlett, Neenah, WI (US);

Curtis R. Barr, Neenah, WI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B65D 75/00 (2006.01); B65D 81/34 (2006.01); B32B 7/12 (2006.01);
U.S. Cl.
CPC ...
B65D 81/34 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B65D 75/008 (2013.01); B32B 7/12 (2013.01); B32B 2250/24 (2013.01); B32B 2255/10 (2013.01); B32B 2255/20 (2013.01); B32B 2255/28 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/412 (2013.01); B32B 2307/518 (2013.01); B32B 2307/558 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/7246 (2013.01); B32B 2307/732 (2013.01); B32B 2439/70 (2013.01);
Abstract

To reduce the amount of staining that occurs during the in-package retort processing of food products, a packaging film is used including a white multilayer film, the white multilayer film having a sealing region on the exposed surface of the packaging film, a white region containing white pigment and a blocking region located between the white region and the sealing region, where the combined thickness of the sealing region and the blocking region is at least 70% of the thickness of the white multilayer film.


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