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:
Mar. 30, 1981
Applicant:
Inventors:
Bobby R Ezzell, Lake Jackson, TX (US);
Harry S Burney, Jr, Clute, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
204 98 ; 204128 ; 210661 ;
Abstract
Method for reducing electrical energy consumption increase of ion-exchange membranes over long term use which comprises electrolyzing an alkali metal chloride solution which contains no more than about 75 ppm 'carbonate' whether such low 'carbonate' solution is achieved by removing excess carbonate previously added to the solution to reduce the hardness or not.