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:
Apr. 29, 2014
Filed:
Apr. 19, 2010
Applicants:
Eckhard Stroefer, Mannheim, DE;
Kai Thiele, Antwerpen, BE;
Michael Zoellinger, Eislingen, DE;
Johnny Moors, Baton Rouge, LA (US);
Jon S. Speier, Baton Rouge, LA (US);
Inventors:
Eckhard Stroefer, Mannheim, DE;
Kai Thiele, Antwerpen, BE;
Michael Zoellinger, Eislingen, DE;
Johnny Moors, Baton Rouge, LA (US);
Jon S. Speier, Baton Rouge, LA (US);
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 211/00 (2006.01); C09B 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for preparing methylenediphenyldiamine (MDA), comprising the following steps a) to c):