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:
May. 10, 2011
Filed:
Jan. 06, 2010
Martin Ernst, Heidelberg, DE;
Steffen Oehlenschläger, Ludwigshafen, DE;
Frank Kuhnke, Ludwigshafen, DE;
Karl-heinz Roβ, Grünstadt, DE;
Roland Deeg, Grünstadt, DE;
Johann-peter Melder, Böhl-Iggelheim, DE;
Martin Ernst, Heidelberg, DE;
Steffen Oehlenschläger, Ludwigshafen, DE;
Frank Kuhnke, Ludwigshafen, DE;
Karl-Heinz Roβ, Grünstadt, DE;
Roland Deeg, Grünstadt, DE;
Johann-Peter Melder, Böhl-Iggelheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to a process for the industrial preparation of a diamine starting from a corresponding alkenyl nitrile comprising at least one C—C double bond, which comprises the steps The invention further relates to an apparatus for preparing these diamines and the use of the apparatuses. A preferred diamine is 3-dimethylaminopropylamine (DMAPA).