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.:
Date of Patent:
Dec. 17, 2019
Filed:
Dec. 25, 2015
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Assignee:
TORAY INDUSTRIES, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/26 (2006.01); C08J 9/28 (2006.01); H01M 2/16 (2006.01); C08F 10/06 (2006.01); H01M 10/0525 (2010.01); H01M 2/14 (2006.01);
U.S. Cl.
CPC ...
B01D 71/26 (2013.01); C08F 10/06 (2013.01); C08J 9/28 (2013.01); H01M 2/145 (2013.01); H01M 2/16 (2013.01); H01M 2/1653 (2013.01); H01M 10/0525 (2013.01);
Abstract
A polyolefin microporous membrane is disclosed. The polyolefin microporous membrane includes a polyolefin resin, where the polyolefin resin contains at least 80 mass % polypropylene resin, and where the polyolefin microporous membrane has a maximum pore size of less than 30.0 nm and a mean flow pore size of less than 20.0 nm.