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:
Mar. 02, 2010
Filed:
May. 02, 2006
Applicants:
Alfred Oftring, Bad Duerkheim, DE;
Gerold Braun, Ludwigshafen, DE;
Friedrich Wirsing, Kaiserslautern, DE;
Armin Stamm, Nieder-Olm, DE;
Kai-uwe Baldenius, Heidelberg, DE;
Inventors:
Alfred Oftring, Bad Duerkheim, DE;
Gerold Braun, Ludwigshafen, DE;
Friedrich Wirsing, Kaiserslautern, DE;
Armin Stamm, Nieder-Olm, DE;
Kai-Uwe Baldenius, Heidelberg, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 227/26 (2006.01); C07C 229/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for preparing low-by-product, light-color methylglycine-N,N-diacetic acid tri(alkali metal) salt by alkaline hydrolysis of methylglycinediacetonitrile (MGDN), comprising the steps in the sequence (a) to (f):