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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 12637553 B1

PDFFull Text
Date of Patent:
May. 26, 2026

Filed:

Apr. 09, 2023

Electrically conductive composition, sheet-form flexible electrode using same, and method for producing said electrode

Applicant:

Sumitomo Riko Company Limited, Aichi, JP;

Inventors:

Masayoshi Nakano, Aichi, JP;

Tsubasa Shinozuka, Aichi, JP;

Naoki Watanabe, Aichi, JP;

Shoji Arimura, Aichi, JP;

Assignee:

Sumitomo Riko Company Limited, Aichi, JP;

Attorney:

JCIPRNET

Primary Examiner:

Khanh T Nguyen

Int. Cl.
CPC ...
C08L 9/06 (2006.01); C08K 3/04 (2006.01); C08K 3/34 (2006.01); C08K 5/09 (2006.01); G01N 27/22 (2006.01); G01N 27/30 (2006.01); H01M 4/1399 (2010.01); H01M 4/60 (2006.01);
U.S. Cl.
CPC ...
C08L 9/06 (2013.01); C08K 3/04 (2013.01); C08K 3/34 (2013.01); C08K 5/09 (2013.01); G01N 27/227 (2013.01); G01N 27/30 (2013.01); H01M 4/1399 (2013.01); H01M 4/604 (2013.01); C08K 3/042 (2017.05); C08K 2201/001 (2013.01); C08L 2207/04 (2013.01);
Abstract

This electrically conductive composition includes a thermoplastic elastomer and flaky graphite, the melt viscosity of the thermoplastic elastomer at 200° C. in a low-shear zone with a shear rate of 60 sto 200 sbeing 50 Pa·s to 1400 Pa·s, and the roundness of the flaky graphite being 0.5 or less. This method for producing a sheet-form flexible electrode has a kneading step for kneading expanded graphite and a thermoplastic elastomer having a melt viscosity of 50 Pa·s to 1400 Pa·s at 200° C. in a low-shear zone with a shear rate of 60 sto 200 s−to produce the electrically conductive composition, and a molding step for molding the electrically conductive composition into the form of a sheet by injection molding or extrusion molding.

Find Patent Forward Citations

Nakano, Masayoshi. (2026). Electrically conductive composition, sheet-form flexible electrode using same, and method for producing said electrode (U.S. Patent No. 12637553). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12637553

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

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