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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 12731865 B1

PDFFull Text
Date of Patent:
Sep. 08, 2026

Filed:

Mar. 17, 2022

Composition for non-aqueous secondary battery adhesive layer, adhesive layer for non-aqueous secondary battery and method for producing the same, laminate for non-aqueous secondary battery and method for producing the same, and non-aqueous secondary battery

Applicant:

Zeon Corporation, Tokyo, JP;

Inventors:

Masanobu Sato, Tokyo, JP;

Yutaka Maruhashi, Tokyo, JP;

Assignee:

ZEON CORPORATION, Tokyo, JP;

Attorney:

KENJA IP LAW PC

Primary Examiner:

Aaron Austin

Assistant Examiner:

Jenna X. Colton

Int. Cl.
CPC ...
C08F 220/18 (2006.01); C08F 265/06 (2006.01); C09D 133/08 (2006.01); C09D 151/00 (2006.01); C09J 7/38 (2018.01); C09J 133/08 (2006.01); C09J 151/00 (2006.01); H01M 4/13 (2010.01); H01M 4/139 (2010.01); H01M 50/403 (2021.01); H01M 50/414 (2021.01); H01M 50/417 (2021.01); H01M 50/42 (2021.01); H01M 50/443 (2021.01); H01M 50/449 (2021.01); H01M 50/46 (2021.01); H01M 50/489 (2021.01);
U.S. Cl.
CPC ...
H01M 50/461 (2021.01); C08F 265/06 (2013.01); C09D 133/08 (2013.01); C09D 151/003 (2013.01); C09J 7/385 (2018.01); C09J 133/08 (2013.01); C09J 151/003 (2013.01); H01M 4/13 (2013.01); H01M 4/139 (2013.01); H01M 50/403 (2021.01); H01M 50/414 (2021.01); H01M 50/417 (2021.01); H01M 50/42 (2021.01); H01M 50/443 (2021.01); H01M 50/449 (2021.01); H01M 50/46 (2021.01); H01M 50/489 (2021.01); C08F 220/1804 (2020.02); C08F 220/1808 (2020.02); C09J 2203/33 (2013.01); C09J 2425/00 (2013.01);
Abstract

Disclosed is a composition for a non-aqueous secondary battery adhesive layer which comprises a particulate polymer, wherein a value of pressure sensitivity of adhesion strength as obtained using the following formula (1) is greater than 20 and less than 80: pressure sensitivity of adhesion strength (N/(m·MPa))=(T3−T1)/2 . . . (1), where T1 represents an adhesion strength (N/m) between a polyethylene separator and an adhesive layer for a non-aqueous secondary battery adhesive layer that is obtained from the composition for a non-aqueous secondary battery adhesive layer when the polyethylene separator and the adhesive layer are bonded by pressing at 25° C. and a pressure of 1 MPa for 10 seconds, and T3 represents an adhesion strength (N/m) between the polyethylene separator and the adhesive layer when the polyethylene separator and the adhesive layer are bonded by pressing at 25° C. and a pressure of 3 MPa for 10 seconds.

Find Patent Forward Citations

Sato, Masanobu. (2026). Composition for non-aqueous secondary battery adhesive layer, adhesive layer for non-aqueous secondary battery and method for producing the same, laminate for non-aqueous secondary battery and method for producing the same, and non-aqueous secondary battery (U.S. Patent No. 12731865). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12731865

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

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