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. 17, 1998
Filed:
Oct. 31, 1996
Applicant:
Inventors:
Josef Heveling, Naters, CH;
Erich Armbruster, Naters, CH;
Lukas Utiger, Termen, CH;
Markus Rohner, Kourim, CH;
Hans-Rudolf Dettwiler, Brig-Glis, CH;
Roderick J Chuck, Brig-Glis, CH;
Assignee:
Lonza AG, Gampel/Valais, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ;
U.S. Cl.
CPC ...
435122 ; 435129 ; 435170 ; 4352521 ;
Abstract
A process for preparing nicotinamide, wherein, in the first stage, 2-methyl-1,5-diaminopentane is catalytically converted into 3-picoline, then the 3-picoline is converted via an ammonoxidation into 3-cyanopyridine and, finally, the 3-cyanopyridine is converted microbiologically into the nicotinamide.