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:
May. 12, 1992
Filed:
Sep. 20, 1990
Applicant:
Inventors:
Forrest A Richey, Jr, Charleston, WV (US);
Arthur R Doumaux, Jr, Charleston, WV (US);
Assignee:
Union Carbide Chemicals & Plastics Technology Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548320 ; 568876 ;
Abstract
A process for preparing cyclic nitrogen-containing compounds which comprises contacting an acyclic nitrogen-containing compound with a CO.sub.2 synthon at an elevated temperature for a period of time sufficient to produce the cyclic nitrogen-containing compound.