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:
Nov. 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 Roehm GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 57/065 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method for producing methacrylic acid by reacting methacrylamide with water, wherein said reaction is performed continuously in a tube reactor and a pressure differential exists in the flow direction of the reaction mixture inside said tube reactor. Furthermore, the present invention discloses a facility for carrying out the method according to the invention.