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:
Dec. 27, 2016
Filed:
Oct. 17, 2012
Applicant:
Wacker Chemie Ag, Munich, DE;
Inventors:
Assignee:
Wacker Chemie AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 22/00 (2006.01); C23C 14/12 (2006.01); C23C 22/02 (2006.01); C09D 183/04 (2006.01); C09D 183/08 (2006.01); C23C 16/24 (2006.01); C08G 77/26 (2006.01); C23G 1/08 (2006.01);
U.S. Cl.
CPC ...
C23C 14/12 (2013.01); C09D 183/04 (2013.01); C09D 183/08 (2013.01); C23C 16/24 (2013.01); C23C 22/02 (2013.01); C08G 77/26 (2013.01); C23C 2222/20 (2013.01); C23G 1/085 (2013.01); Y10T 428/31663 (2015.04);
Abstract
The content of phosphorus in polycrystalline silicon prepared by the Siemens process is reduced by treating phosphorus-containing steel surfaces with an α-amino-functional alkoxysilane. The treated surface exhibits less corrosion in an atmosphere of moist hydrogen chloride, and less loss of phosphorus as a result.