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:
Oct. 15, 2019
Filed:
Sep. 14, 2016
Applicant:
Kuraray Co., Ltd., Kurashiki-shi, JP;
Inventors:
Tomohiro Hayakawa, Okayama, JP;
Toshimichi Kusunoki, Okayama, JP;
Hiroyuki Kawai, Okayama, JP;
Koichi Kambe, Osaka, JP;
Assignee:
KURARAY CO., LTD., Kurashiki-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 10/24 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1626 (2013.01); H01M 2/16 (2013.01); H01M 2/162 (2013.01); H01M 2/1693 (2013.01); H01M 10/24 (2013.01);
Abstract
An alkaline battery separator having alkali-resistant fibers, beaten cellulose fibers and a binder, wherein an overall freeness, in terms of CSF, is at least 700 ml and at most 765 ml; weight ratios of the alkali-resistant fibers and the beaten cellulose fibers are 28:72 to 72:28; the beaten cellulose fibers comprise mercerized natural wood fibers having a freeness, in terms of CSF, of at least 150 ml and less than 550 ml; and at least a portion of the alkali-resistant fibers is polyvinyl alcohol-based fibers.