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:
Jun. 11, 2013
Filed:
Nov. 21, 2003
Applicants:
Jochen Ackerman, Darmstadt, DE;
Horst Hiltner, Heppenheim, DE;
Hermann Siegert, Seeheim-Jugenheim, DE;
Inventors:
Jochen Ackerman, Darmstadt, DE;
Horst Hiltner, Heppenheim, DE;
Hermann Siegert, Seeheim-Jugenheim, DE;
Assignee:
Evonik Röhm GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to an improved method for the continuous production of alkyl(methyl)acrylates by transesterification of methyl(meth)acrylate with alcohols that are heavy in comparison with methanol. A special processing technique makes it possible to obtain new levels of product quality. Very high space-time-overall yields can also be obtained. The invention is characterized by the multiple use of a homogeneous catalyst which thereby reduces the costs of auxiliary agents significantly.