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:
May. 12, 2015
Filed:
May. 26, 2009
Applicants:
Sven Michael Hansen, Leverkusen, DE;
Ralf Schneider, Leverkusen, DE;
Bernd Schwethelm, Leverkusen, DE;
Rolf Schiefer, Leverkusen, DE;
Jürgen Dreher, Köln, DE;
Inventors:
Sven Michael Hansen, Leverkusen, DE;
Ralf Schneider, Leverkusen, DE;
Bernd Schwethelm, Leverkusen, DE;
Rolf Schiefer, Leverkusen, DE;
Jürgen Dreher, Köln, DE;
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 263/00 (2006.01); C07C 263/10 (2006.01); C07C 263/20 (2006.01);
U.S. Cl.
CPC ...
C07C 263/10 (2013.01); C07C 263/20 (2013.01);
Abstract
Isocyanates are produced in the gas phase and by-products such as ammonium halides are selectively separated from the gas phase by desublimation.