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:
Feb. 20, 2007
Filed:
Mar. 17, 2005
Applicants:
Tetsuya Inukai, Annaka, JP;
Hajime Ishizaka, Annaka, JP;
Mikio Aramata, Annaka, JP;
Yukinori Satou, Annaka, JP;
Inventors:
Tetsuya Inukai, Annaka, JP;
Hajime Ishizaka, Annaka, JP;
Mikio Aramata, Annaka, JP;
Yukinori Satou, Annaka, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 7/04 (2006.01); C07F 7/08 (2006.01); C07F 7/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Organohalosilanes are prepared by reacting metallic silicon particles with an organohalide in the presence of a copper catalyst. A contact mass composed of the metallic silicon and the copper catalyst contains an effective amount of a catalyst alloy containing 0.2–8 wt % of tin and 4–20 wt % of phosphorus which is powdered by atomization.