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. 24, 2007
Filed:
Apr. 28, 2005
Applicants:
Günther Köhler, Marl, DE;
Volker Brehme, Dortmund, DE;
Manfred Neumann, Marl, DE;
Clemens Osterholt, Dorsten, DE;
Inventors:
Günther Köhler, Marl, DE;
Volker Brehme, Dortmund, DE;
Manfred Neumann, Marl, DE;
Clemens Osterholt, Dorsten, DE;
Assignee:
Degussa AG, Duesseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/58 (2006.01); C07C 43/15 (2006.01); B01D 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for isolating purified 2-methoxypropene from a mixture which comprises 2,2-dimethoxypropane, 2-methoxypropene, methanol, acetone, and optionally other carbonyl group-containing compounds, which process involves subjecting the mixture to distillation, adding 2-aminoethanol and at least one base as assistants in the distillation, and isolating purified 2-methoxypropene.