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:
Dec. 01, 1981
Filed:
Dec. 26, 1979
Applicant:
Inventors:
William W Carlin, Portland, TX (US);
Douglas W McCann, Corpus Christi, TX (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
2041 / ; 204 86 ; 423332 ;
Abstract
A process is disclosed for increasing the silica to alkali metal oxide weight ratio of aqueous alkali metal silicate solution by electrodialysis of the alkali metal silicate solution.