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:
Mar. 24, 1981
Filed:
Jan. 29, 1979
David Moy, Ridgewood, NJ (US);
Halcon Research and Development Corp., New York, NY (US);
Abstract
A process for the production of carbamates is provided in which an organic primary or secondary amine is contacted, in the substantial absence of reactive oxygen, with a source of carbon monoxide, an organic compound containing at least one hydroxyl group and a source of sulfur, selenium or tellurium, in the presence of an effective amount of a catalyst selected from the group consisting of non-halide compounds and complexes of metals of Groups IVB, VB, VIB, VIIB, VIII, IB and IIIA of the Periodic Table. Further improved results are obtained by employing in the reaction zone at least one promoter selected from the group consisting of metals of Group IA and IIA of the Periodic Table.