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:
Aug. 07, 2018
Filed:
Nov. 25, 2015
Applicant:
Dow Corning Corporation, Midland, MI (US);
Inventors:
Patrick Harder, Saginaw, MI (US);
Tyler Swenson, Midland, MI (US);
David Williams, Midland, MI (US);
Assignee:
Dow Silicones Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/107 (2006.01); C08G 77/04 (2006.01); B01J 8/00 (2006.01); B01J 23/72 (2006.01);
U.S. Cl.
CPC ...
C01B 33/1071 (2013.01); B01J 8/002 (2013.01); B01J 23/72 (2013.01); C08G 77/04 (2013.01);
Abstract
A process for preparing a product including a monohydrogentrihalosilane is disclosed. The process includes the steps of: 1) initially charging a reactor with a contact mass including both fresh silicon and recycled contact mass, where the recycled contact mass is obtained from during or after a production phase of an inorganic Direct Process reaction for production of a monohydrogentrihalosilane; and thereafter 2) feeding to the reactor a hydrogen halide and additional fresh silicon, thereby forming the product.