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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 11198778 B1

PDFFull Text
Date of Patent:
Dec. 14, 2021

Filed:

Oct. 18, 2018

Nonaqueous electrolyte secondary battery separator

Applicant:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventors:

Tsuneyuki Abe, Niihama, JP;

Takamasa Egawa, Niihama, JP;

Assignee:

SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;

Attorney:

Panitch Schwarze Belisario & Nadel LLP

Primary Examiner:

Larry W Thrower

Int. Cl.
CPC ...
C08L 23/06 (2006.01); C08J 9/26 (2006.01); H01M 10/0525 (2010.01); C08J 9/36 (2006.01); B32B 5/18 (2006.01); H01M 50/409 (2021.01); H01M 50/411 (2021.01); H01M 50/449 (2021.01);
U.S. Cl.
CPC ...
C08L 23/06 (2013.01); B32B 5/18 (2013.01); C08J 9/26 (2013.01); C08J 9/36 (2013.01); H01M 10/0525 (2013.01); H01M 50/409 (2021.01); H01M 50/411 (2021.01); H01M 50/449 (2021.01); C08J 2201/044 (2013.01); C08J 2323/06 (2013.01); C08J 2323/12 (2013.01); C08J 2491/06 (2013.01);
Abstract

As a nonaqueous electrolyte secondary battery separator having a transverse direction/machine direction crease recovery angle ratio of close to 1, a nonaqueous electrolyte secondary battery separator is provided that includes a polyolefin porous film having a ratio of a 60-degree gloss in an machine direction to a 60-degree gloss in a transverse direction which ratio is not less than 1.00.

Find Patent Forward Citations

Abe, Tsuneyuki. (2021). Nonaqueous electrolyte secondary battery separator (U.S. Patent No. 11198778). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11198778

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

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