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:
Jan. 18, 2005
Filed:
Nov. 06, 2001
Applicants:
Stephan Klein, Mettmann, DE;
Hans-dieter Block, Leverkusen, DE;
Hans-joachim Leimkühler, Leverkusen, DE;
Werner Dick, Leverkusen, DE;
Johannes-peter Schäfer, Kürten, DE;
Inventors:
Stephan Klein, Mettmann, DE;
Hans-Dieter Block, Leverkusen, DE;
Hans-Joachim Leimkühler, Leverkusen, DE;
Werner Dick, Leverkusen, DE;
Johannes-Peter Schäfer, Kürten, DE;
Assignee:
Solarworld Aktiengesellschaft, Bonn, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62D 300 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for removing anhydrous acids and hydrohalogens from trichlorosilane by contacting the trichlorosilane with solid bases. The invention further relates to the use of the trichlorosilane so purified in the production of silane and/or super-pure silicon.