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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 11059257 B1

PDFFull Text
Date of Patent:
Jul. 13, 2021

Filed:

Sep. 28, 2016

Multilayer film and pouch with same

Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Hang Lu, Shanghai, CN;

Joy Jingyi Xu, Shanghai, CN;

Yutaka Maehara, Tokyo, JP;

Jian-ping Pan, Shanghai, CN;

Xiao Bing Yun, Beijing, CN;

Assignee:

Dow Global Technologies LLC, Midland, MI (US);

Attorney:

Quarles & Brady LLP

Primary Examiner:

Walter Aughenbaugh

Int. Cl.
CPC ...
B32B 1/02 (2006.01); A61J 1/10 (2006.01); A61J 1/14 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); C08L 23/12 (2006.01); C08L 23/14 (2006.01); C08L 53/02 (2006.01);
U.S. Cl.
CPC ...
B32B 1/02 (2013.01); A61J 1/10 (2013.01); A61J 1/1468 (2015.05); B32B 27/08 (2013.01); B32B 27/302 (2013.01); B32B 27/32 (2013.01); C08L 23/12 (2013.01); C08L 23/142 (2013.01); C08L 53/025 (2013.01); B32B 2250/03 (2013.01); B32B 2250/246 (2013.01); B32B 2270/00 (2013.01); B32B 2307/41 (2013.01); B32B 2307/558 (2013.01); B32B 2439/80 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); Y10T 428/1334 (2015.01); Y10T 428/1386 (2015.01); Y10T 428/31909 (2015.04); Y10T 428/31938 (2015.04);
Abstract

The present disclosure is directed to a retort pouch. In an embodiment, the retort pouch includes a multilayer film with at least three layers. The at least three layers include (A) a skin layer comprising a blend of a propylene-based polymer and a styrenic block copolymer, (B) a seal layer comprising blend of a propylene-based polymer and a styrenic block copolymer, and (C) a core layer located between the skin layer (A) and the seal layer (B). The core layer comprises a blend of (1) a propylene-based polymer, (2) an ethylene-based polymer, and (3) a crystalline block composite (CBC).

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