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:
Jul. 13, 2010
Filed:
May. 03, 2006
Applicants:
Alfred Oftring, Bad Duerkheim, DE;
Bernd Judat, Mannheim, DE;
Matthias Rauls, Ludwigshafen, DE;
Katrin Friese, Mannheim, DE;
Inventors:
Alfred Oftring, Bad Duerkheim, DE;
Bernd Judat, Mannheim, DE;
Matthias Rauls, Ludwigshafen, DE;
Katrin Friese, Mannheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 255/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for isolating methylglycinenitrile-N,N-diacetonitrile (MGDN) from an aqueous emulsion which comprises MGDN and has an MGDN content of 3-50% by weight in a crystallizer, comprising the steps: