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:
Dec. 25, 2012
Filed:
Mar. 14, 2007
Applicants:
Dirk Broell, Langen, DE;
Hermann Siegert, Seeheim-Jugenheit, DE;
Inventors:
Dirk Broell, Langen, DE;
Hermann Siegert, Seeheim-Jugenheit, DE;
Assignee:
Evonik Röhm GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/34 (2006.01); C07C 51/44 (2006.01); C07C 57/07 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process for distillatively purifying polymerizable compounds using a high-boiling, inert, thermally long-term-stable substance as a boiling oil, characterized in that the boiling oil is disposed in the bottom of a rectification column.