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:
May. 05, 1981
Filed:
Jul. 28, 1980
Applicant:
Inventors:
Ronald J Allain, Naperville, IL (US);
Joseph P Maniscalco, Sugar Land, TX (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556430 ; 556469 ;
Abstract
An improved process for producing tetramethyldisilane by Lewis acid catalyzed redistribution of hexamethyldisilane with a crude mixture of methylchlorodisilane which comprises the distillation of the mixed redistributed product with collection of a middle distillate cut containing at least 95% pure tetramethyldichlorodisilane.