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:
Jun. 29, 1999
Filed:
Jun. 05, 1997
Applicant:
Inventors:
Alfred Hagemeyer, Rheine, DE;
Daniel Heineke, Ludwigshafen, DE;
Guido Voit, Schriesheim, DE;
Tom Witzel, Ludwigshafen, DE;
Assignee:
BASF Aktiengesellshcaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
534572 ; 534585 ;
Abstract
Nitrobenzene or a nitrobenzene substituted on the nucleus is subjected to reductive coupling to give the corresponding azobenzene and azoxybenzene under heterogeneous catalysis with substantial avoidance of overreduction to aniline derivatives by means of a redox catalyst in its reduced or partly reduced form, the redox catalyst containing at least one active metal component capable of a change of oxidation state.
Hagemeyer, Alfred. (1999). Reductive coupling of nitrobenzene or nitrobenzenes substituted on the (U.S. Patent No. 5917023). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5917023
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile