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:
Oct. 09, 1990
Filed:
Jan. 20, 1990
Applicant:
Inventors:
Roland L Halm, Madison, IN (US);
Regie H Zapp, Carrollton, KY (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556473 ;
Abstract
The present invention provides a method for reducing the concentration of methyltrichlorosilane in the mixture of methylchlorosilanes obtained from the direct process reaction of silicon metal with a mixture of methyl chloride and hydrogen chloride. The method comprises blending the methyl chloride/hydrogen chloride mixture with from 0.1 up to about 5 weight percent of hydrogen, based on the methyl chloride.