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:
Nov. 22, 1994
Filed:
Jun. 01, 1993
Hideo Hayashi, Yamatotakada, JP;
Hiroyuki Kawai, Okayama, JP;
Tomoyasu Sonetaka, Okayama, JP;
Shingo Nakanishi, Okayama, JP;
Junichi Asaoka, Ikoma, JP;
Yuji Mototani, Yawata, JP;
Kuraray Co., Ltd., Okayama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A separator for alkaline batteries comprising as at least part of the main fibers a fibrilated product of cellulose fiber obtained by dissolving cellulose in a solvent and depositing cellulose directly. As another main fiber, preferably an extra fine synthetic fiber, particularly preferably a polyvinyl alcohol synthetic fiber is used. The binder is preferably polyvinyl alcohol. Also provided is an alkaline battery wherein such a separator is used. Preferably, the above cellulose fiber is cellulose fiber whose wet Young's modulus is 20 g/d or more and orientation degree .DELTA.n is 42.times.10.sup.-3 or more.