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. 11, 1997
Filed:
Jan. 31, 1996
Applicant:
Inventors:
Patricia S Bennett, Madison, WI (US);
Kenneth H Kenyon, Verona, WI (US);
Alane M Boutelle, Madison, WI (US);
Janna L Rose, Madison, WI (US);
Ronald J Ekern, Verona, WI (US);
Randall L Collien, Fitchburg, WI (US);
Assignee:
Rayovac Corporation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429217 ; 429231 ; 296231 ;
Abstract
A potassium polyacrylate superabsorbent polymer made by modified bulk polymerization and characterized as described herein is a superior gelling agent when provided at a suitable concentration in a gelled anode for an alkaline electrochemical cell. Suitable gelled anodes, alkaline electrochemical cells containing such gelled anodes, and methods for making and using same are also described.