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. 28, 2017
Filed:
Mar. 14, 2014
Dow Corning Corporation, Midland, MI (US);
James Lee, Rochester, MI (US);
Binh Thanh Nguyen, Midland, MI (US);
Scott E. Pider, Midland, MI (US);
Steven L. Umphrey, Midland, MI (US);
Hanh Xuan Vo, Midland, MI (US);
Dow Corning Corporation, Midland, MI (US);
Abstract
A method of making a diakyl-, diaryl-, or alkylaryl-dihalosilane in a Grignard coupling reaction with a high degree of selectivity is provided. More specifically, a Grignard reagent comprising an alkyl- or aryl-magnesium halide is allowed to react with an alkyl- or aryl-trihalosilane precursor or reagent to produce a product mixture of RSiXand RSiX, wherein each R is independently selected to be an alkyl or aryl group and X is a halogen group, such that the RSiXproduct is formed with a high degree of selectivity. High selectivity is defined as the mass ratio of RSiXproduct to the RSiX product that is formed in the reaction being greater than 7:1.