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. 29, 1983
Filed:
Jan. 21, 1982
Applicant:
Inventors:
Bobby R Ezzell, Lake Jackson, TX (US);
William P Carl, Angleton, TX (US);
William A Mod, Lake Jackson, TX (US);
Assignee:
The Dow Chemical Co., Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ;
U.S. Cl.
CPC ...
204252 ; 204 98 ; 204296 ;
Abstract
An improved polymer for use as an ion exchange membrane in an electrolytic cell wherein the polymer has pendant chains containing sulfonic acid ion exchange groups and has an equivalent weight of between about 800 and about 1500. The polymers have a hydration product of less than about 22,000. The electrolytic cell and its method of operation are described when these polymers are used as ion exchange membranes.