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:
Sep. 16, 2014
Filed:
Dec. 03, 2010
Applicants:
Torsten Mattke, Freinsheim, DE;
Eckhard Stroefer, Mannheim, DE;
Julia Leschinski, Mannheim, DE;
Radwan Abdallah, Ludwigshafen, DE;
Axel Franzke, Mannheim, DE;
Michael Bock, Ruppertsberg, DE;
Inventors:
Torsten Mattke, Freinsheim, DE;
Eckhard Stroefer, Mannheim, DE;
Julia Leschinski, Mannheim, DE;
Radwan Abdallah, Ludwigshafen, DE;
Axel Franzke, Mannheim, DE;
Michael Bock, Ruppertsberg, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 263/04 (2006.01);
U.S. Cl.
CPC ...
C07C 263/04 (2013.01);
Abstract
Process for preparing aromatic isocyanates by reacting the corresponding formamides with an oxygen-comprising gas over noble metal catalysts at temperatures of from 300 to 600° C. and a contact time of from 1 to 1000 ms, wherein: