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. 24, 1998
Filed:
Nov. 16, 1995
Applicant:
Inventor:
Thomas M Potts, Joplin, MO (US);
Assignee:
Eagle-Picher Industries, Inc., Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556483 ; 95 84 ; 95 86 ; 95 88 ;
Abstract
Tetraethoxysilane is purified by passing impure material through a gas chromatographic separating column at a temperature below the boiling point of the pure tetraethoxysilane. Separation of pure material from impurities occurs on the column, and the pure material is thereafter cooled and collected in a receiver. The purified tetraethoxysilane has 99.999999% purity based on metals content.