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:
Feb. 04, 1986
Filed:
Dec. 29, 1982
Applicant:
Inventor:
Frank G Cowherd, III, Charleston, WV (US);
Assignee:
Union Carbide Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07C / ;
U.S. Cl.
CPC ...
544358 ; 564461 ; 564479 ; 564480 ;
Abstract
A process for the production of an amine composition with a high proportion of diethylenetriamine to piperazine comprising reacting ethylenediamine with itself or monoethanolamine in the presence of a nickel, cobalt or rhodium catalyst at temperatures between about 170.degree. C. and 210.degree. C.
Cowherd, III, Frank. (1986). Catalytic preparation of diethylenetriamine (U.S. Patent No. 4568746). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4568746
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile