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. 14, 2011
Filed:
Feb. 27, 2008
Applicants:
Kirsten Dahmen, Freinsheim, DE;
Alfred Oftring, Bad Dürkheim, DE;
Randolf Hugo, Dirmstein, DE;
Katrin Baumann, Mannheim, DE;
Thilo Hahn, Kirchheimbolanden, DE;
Johann-peter Melder, Böhl-Iggelheim, DE;
Inventors:
Kirsten Dahmen, Freinsheim, DE;
Alfred Oftring, Bad Dürkheim, DE;
Randolf Hugo, Dirmstein, DE;
Katrin Baumann, Mannheim, DE;
Thilo Hahn, Kirchheimbolanden, DE;
Johann-Peter Melder, Böhl-Iggelheim, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for preparing triethylenetetramine (TETA), which comprises hydrogenating ethylenediaminediacetonitrile (EDDN) in the presence of a catalyst and a solvent.