logo

For the Inventor, By the Inventor

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 12763414 B1

PDFFull Text
Date of Patent:
Oct. 13, 2026

Filed:

Nov. 09, 2021

Propylene-based multi-layer film for cell pouch, having excellent adhesive performance and moldability

Applicant:

Lotte Chemical Corporation, Seoul, KR;

Inventors:

Jin Ju Cho, Daejeon, KR;

Min Kyu Kim, Daejeon, KR;

Joon Gyu Ahn, Daejeon, KR;

Hyun Sup Lee, Daejeon, KR;

Assignee:

LOTTE CHEMICAL CORPORATION, Seoul, KR;

Attorney:

Osha Bergman Watanabe & Burton LLP

Primary Examiner:

Adam J Francis

Int. Cl.
CPC ...
H01M 50/197 (2021.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/32 (2006.01); H01M 50/105 (2021.01); H01M 50/129 (2021.01); H01M 50/193 (2021.01);
U.S. Cl.
CPC ...
H01M 50/197 (2021.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/32 (2013.01); H01M 50/105 (2021.01); H01M 50/129 (2021.01); H01M 50/193 (2021.01); B32B 2250/03 (2013.01); B32B 2250/242 (2013.01); B32B 2307/30 (2013.01); B32B 2307/702 (2013.01); B32B 2307/7376 (2023.05); B32B 2307/746 (2013.01); B32B 2457/10 (2013.01);
Abstract

Disclosed is a specific stacked composition of a multi-layer film which is mainly used as a sealant layer of a cell pouch, has excellent adhesive performance, and simultaneously satisfies moldability in post-processing. The present invention provides a polypropylene-based multi-layer film including a skin layer including (a) a propylene-based binary copolymer, (f) a modified polyolefin, and (e) an anti-blocking agent, a core layer including (b1) an ethylene propylene block copolymer, and (c) an amorphous propylene rubber, and a seal layer including (a) a propylene-based binary copolymer, (b2) an ethylene propylene block copolymer, (d) a slip agent, and (e) an anti-blocking agent.

Find Patent Forward Citations

Cho, Jin. (2026). Propylene-based multi-layer film for cell pouch, having excellent adhesive performance and moldability (U.S. Patent No. 12763414). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12763414

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…