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. 19, 1989
Filed:
Jun. 22, 1989
Applicant:
Inventors:
Kirk M Chadwick, Hanover, IN (US);
Roland L Halm, Madison, IN (US);
Brian R Keyes, Salt Lake City, UT (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ;
U.S. Cl.
CPC ...
556469 ;
Abstract
An improved process for the preparation of multi-organic substituted silanes from the reaction of halides of silicon with an alkyl halide in the presence of a halogen-accepting metal is described. The improvement integrates a redistribution process into the alkylation process. The redistribution process involves an interaction between a multi-organic substituted silane and a halosilane with fewer organic substituents whereby an organic group from the multi-organic substituted silane is exchanged with a halogen group of the less organic substituted halosilane.