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. 01, 2015
Filed:
Aug. 09, 2011
Felix Gärtner, Marburg, DE;
Andreas Jacob, Marburg, DE;
Jörg Sundermeyer, Marburg, DE;
Stephan Klein, Shanghai, CN;
Stefan Wershofen, Mönchengladbach, DE;
Felix Gärtner, Marburg, DE;
Andreas Jacob, Marburg, DE;
Jörg Sundermeyer, Marburg, DE;
Stephan Klein, Shanghai, CN;
Stefan Wershofen, Mönchengladbach, DE;
Bayer Intellectual Property GmbH, Monheim, DE;
Abstract
The invention relates to a method for producing urethanes or ureas or mixtures of urethanes and ureas by oxidative carbonylation of organic amines in the presence of carbon monoxide, oxygen and a catalyst, where the catalyst used is a transition metal complex containing the structural feature: [Mn+(O˜N˜O)2−](n−2)+(L)m(Z−)n−2 and the method is carried out under halogen-free reaction conditions. The invention further relates to transition metal complexes containing said structural feature and also to the use of such transition metal complexes as catalysts in the production of urethanes or ureas or mixtures of urethanes and ureas.