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. 09, 2021
Filed:
Aug. 21, 2019
Applicant:
Dow Silicones Corporation, Midland, MI (US);
Inventors:
John Roberts, Midland, MI (US);
Vladimir Pushkarev, Mount Pleasant, MI (US);
Dimitris Katsoulis, Midland, MI (US);
Assignee:
Dow Silicones Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 7/18 (2006.01); C07F 7/08 (2006.01); B01J 35/02 (2006.01); B01J 37/00 (2006.01); B01J 37/08 (2006.01); B01J 21/06 (2006.01);
U.S. Cl.
CPC ...
C07F 7/188 (2013.01); B01J 21/06 (2013.01); B01J 35/023 (2013.01); B01J 37/0036 (2013.01); B01J 37/08 (2013.01); C07F 7/0834 (2013.01);
Abstract
A method is useful for preparing alkylalkoxysilanes, such as alkylalkoxysilanes, particularly dimethyldimethoxysilane. The method includes heating at a temperature of 150° C. to 400° C., ingredients including an alkyl ether and carbon dioxide, and a source of silicon and catalyst. The carbon dioxide eliminates the need to add halogenated compounds during the method.