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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 9034509 B1

PDFFull Text
Date of Patent:
May. 19, 2015

Filed:

Mar. 24, 2011

Polyolefin microporous membrane and method of producing the same, separator for non-aqueous secondary battery and non-aqueous secondary battery

Applicants:

Hiroki Sano, Iwakuni, JP;

Satoshi Nishikawa, Iwakuni, JP;

Takashi Yoshitomi, Iwakuni, JP;

Inventors:

Hiroki Sano, Iwakuni, JP;

Satoshi Nishikawa, Iwakuni, JP;

Takashi Yoshitomi, Iwakuni, JP;

Assignee:

TEIJIN LIMITED, Osaka, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Sarah A Slifka

Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/18 (2006.01); B32B 23/08 (2006.01); B32B 27/08 (2006.01); B32B 27/28 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); H01M 2/14 (2006.01); H01M 2/34 (2006.01); H01M 10/0525 (2010.01); H01M 10/0565 (2010.01);
U.S. Cl.
CPC ...
H01M 2/1653 (2013.01); B32B 23/08 (2013.01); B32B 27/08 (2013.01); B32B 27/281 (2013.01); B32B 27/285 (2013.01); B32B 27/286 (2013.01); B32B 27/288 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); H01M 2/145 (2013.01); H01M 2/166 (2013.01); H01M 2/34 (2013.01); H01M 2/348 (2013.01); H01M 10/0525 (2013.01); H01M 10/0565 (2013.01); H01M 2200/10 (2013.01); Y02T 10/7011 (2013.01);
Abstract

The present invention provides a polyolefin microporous membrane in which a degree of crystallinity is from 60 to 85%, and a tie molecular volume fraction is from 0.7 to 1.7%.

Find Patent Forward Citations

Sano, Hiroki. (2015). Polyolefin microporous membrane and method of producing the same, separator for non-aqueous secondary battery and non-aqueous secondary battery (U.S. Patent No. 9034509). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9034509

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

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