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:
Aug. 26, 1980
Filed:
Apr. 23, 1979
Applicant:
Inventors:
Robert Becker, Leverkusen, DE;
Johann Grolig, Leverkusen, DE;
Christian Rasp, Cologne, DE;
Gerhard Scharfe, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 24 ; 2604654 ; 544 37 ; 560-9 ; 560 12 ; 560 25 ; 560 26 ; 560 27 ; 560 28 ; 560 30 ; 560 31 ; 560115 ; 560157 ; 560158 ; 560163 ; 560164 ; 560166 ;
Abstract
This invention relates to an improved process for the production of urethanes (i.e. carbamic acid esters) by reacting organic nitro compounds with carbon monoxide and organic compounds containing at least one hydroxy group in the presence of a unique catalyst system. The catalyst system consists of palladium or a palladium compound and iron oxychloride or a mixture of iron compounds containing iron oxychloride.