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:
Jul. 21, 2020
Filed:
Jul. 13, 2016
Applicant:
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); C08L 23/08 (2006.01); C08L 23/12 (2006.01); C08L 23/06 (2006.01); C08J 9/26 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1653 (2013.01); C08J 9/26 (2013.01); C08L 23/06 (2013.01); C08L 23/08 (2013.01); C08L 23/0815 (2013.01); C08L 23/12 (2013.01); H01M 2/16 (2013.01); C08L 2203/20 (2013.01); C08L 2205/02 (2013.01); C08L 2207/062 (2013.01);
Abstract
A microporous membrane according to the present invention is a microporous membrane containing a copolymerized high density polyethylene and a high density polyethylene, wherein a content of an α-olefin unit having 3 or more carbon atoms in the microporous membrane is 0.01 mol % or more and 0.6 mol % or less, and a viscosity average molecular weight of the microporous membrane is less than 300,000. In addition, a battery separator according to the present invention contains the above microporous membrane. Further, a battery according to the present invention contains the above battery separator.