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. 05, 2006
Filed:
May. 11, 2005
Applicants:
Andreas Job, Köln, DE;
Bernd Griehsel, Bottrop, DE;
Inventors:
Andreas Job, Köln, DE;
Bernd Griehsel, Bottrop, DE;
Assignee:
LANXESS Deutschland GmbH, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 403/06 (2006.01); C07D 233/58 (2006.01); C07D 249/08 (2006.01); C07D 235/04 (2006.01); C07D 403/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process is provided for preparing N,N'-carbonyldiazoles by reacting azoles with phosgene in halogenated aliphatic hydrocarbon solvents, the entirety of the azole for reaction being introduced in the solvent, followed by the addition of phosgene.