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. 05, 2013
Filed:
Jan. 13, 2009
Applicants:
Udo Gropp, Bad Endorf, DE;
Stefanie Sohnemann, Overath, DE;
Guido Protzmann, Bensheim, DE;
Thomas Mertz, Bensheim, DE;
Inventors:
Udo Gropp, Bad Endorf, DE;
Stefanie Sohnemann, Overath, DE;
Guido Protzmann, Bensheim, DE;
Thomas Mertz, Bensheim, DE;
Assignee:
Evonik Röhm GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 57/065 (2006.01); C07C 57/07 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for purifying methacrylic acid, wherein the reaction mixture obtained by a reaction of methacrylamide with water is cooled by mixing with an aqueous medium and then passed into a phase separator. The present invention further describes a system for performing the process according to the invention.