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, 1980
Filed:
Jul. 21, 1978
Applicant:
Inventors:
Roger A Crawford, Wadsworth, TX (US);
Howard H Hoekje, Corpus Christi, TX (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
204101 ;
Abstract
Novel silica gels are disclosed, as well as their formation from aqueous sodium silicate solutions by neutralizing the hydroxyl ion by electrolysis at a rate whereby the concentration of hydroxide ion is maintained within the range wherein silica gel forms.