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. 28, 1977
Filed:
Apr. 18, 1975
Applicant:
Inventors:
Hans-Juergen Quadbeck-Seeger, Bad Duerkheim, DT;
Dieter Schneider, Edingen, DT;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen (Rhine), DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ; 260688 ;
Abstract
2-Amino-3,5-dinitrobenzamide is manufactured by nitration of isatoic anhydride with a nitrating mixture of a particular composition at from -20 to +80.degree. C, followed by reaction of the resulting acid phase with ammonia. The product is a starting material for the manufacture of dyes and pesticides.