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:
Nov. 23, 1999
Filed:
Nov. 17, 1998
Applicant:
Inventors:
Duane A Goetsch, Andover, MN (US);
Kym B Arcuri, Greenwell Springs, LA (US);
Assignee:
Gradient Technology, Excelsior, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564421 ; 564422 ;
Abstract
Ammonium picrate, Explosive 'D', is converted to picric acid, which is then converted to triaminophenol by the conversion of the aromatic nitro groups to amino groups. The triaminophenols are then converted to triaminobenzenes by the removal of the hydroxyl groups and the triaminobenzenes are converted to m-phenylenediamine, aniline, and primary aliphatic amines by the removal of amino groups.