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:
Mar. 18, 2003
Filed:
Nov. 22, 2000
Applicant:
Inventors:
Kimiyo Hata, Chiba, JP;
Takaya Sato, Chiba, JP;
Assignee:
Nisshinbo Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B 1/06 ; H01B 1/20 ;
U.S. Cl.
CPC ...
H01B 1/06 ; H01B 1/20 ;
Abstract
The invention provides a novel polymeric compound comprising polyvinyl alcohol units and having an average degree of polymerization of at least 20, in which some or all of the hydroxyl groups on the polyvinyl alcohol units are substituted with oxyalkylene-containing groups to an average molar substitution of at least 0.3; a binder resin composed of this polymeric compound; an ion-conductive polymer electrolyte composition having a high ionic conductivity and high tackiness which lends itself well to use as a solid polymer electrolyte in film-type cells and related applications; and a secondary cell.