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. 09, 2001
Filed:
Feb. 07, 2000
Michiyuki Kono, Osaka, JP;
Yoshiharu Matsuda, Osaka, JP;
Dai-Ichi Kogyo Seiyaku Co., Ltd., Kyoto, JP;
Abstract
An electric double layer capacitor capable of functioning over a broad temperature range with a reduced incidence of electrolyte leakage and a low rate of self discharge is formed from a solid electrolyte containing (A) a crosslinking product of a polyoxyalkylene having a double bond terminally and/or in its side chain, (B) an electrolyte salt, (C) a low molecular weight polar solvent, and (D) polyacrylonitrile. The above-mentioned polyoxyalkylene (A) is, for example, a compound of the formula (1) below. In formula (1), Z is an active hydrogen compound residue; k is an integer from 1 to 6; R,is an alkyl group having 1 to 8 carbon atoms; Y,is an acryloyl or methacryloyl group; m is an integer from 0 to 460 and n is an integer from 0 to 350, excluding the case in which both m and n are simultaneously equal to 0.