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. 03, 2022
Filed:
Aug. 21, 2019
Applicant:
Dow Silicones Corporation, Midland, MI (US);
Inventors:
Dimitris Katsoulis, Midland, MI (US);
John Roberts, Midland, MI (US);
Assignee:
Dow Silicones Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 7/18 (2006.01); B01J 21/06 (2006.01); B01J 23/72 (2006.01);
U.S. Cl.
CPC ...
C07F 7/188 (2013.01); B01J 21/06 (2013.01); B01J 23/72 (2013.01); C07F 7/1876 (2013.01);
Abstract
A method for preparing a hydrocarbylhydrocarbyloxysilane of formula RHSi(OR)(4), where each R is independently a hydrocarbyl group and subscript a is 1 to 4 and subscript b is 1 to 2 is disclosed. The method includes heating ingredients including a hydrocarbyl carbonate and a source of silicon and catalyst. The method can be used to make dimethyldimethoxysilane.