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:
Feb. 14, 2006
Filed:
Sep. 27, 2002
Shoichi Yokoyama, Kanagawa, JP;
Takeshi Yabe, Kanagawa, JP;
Shoichi Yokoyama, Kanagawa, JP;
Takeshi Yabe, Kanagawa, JP;
NOF Corporation, Tokyo, JP;
Abstract
A process for producing a boric acid ester compound which comprises esterifying a compound represented by the formula (1):X—[O(AO)—H]  (1)wherein X represents a group independently selected from a residue of a compound having 1 to 6 hydroxyl groups, an acryloyl group and a methacryloyl group with a boron-containing compound represented by the formula (2):(RO)—B  (2)wherein R represents an alkyl group having 1 to 4 carbon atoms. The present invention can provide a boric acid ester compound which has a high ion conductivity, which is useful as a material for an electrochemical device, such as a secondary battery or a capacitor, having excellent safety and which is low in water and impurity contents, a polymer electrolyte containing the boric acid ester compound, and a secondary battery using the polymer electrolyte.