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:
Sep. 20, 2011
Filed:
Sep. 24, 2008
Applicants:
Marco Lerm, Erkelenz, DE;
Joerg Lotz, Kalbach, DE;
Klaus Stadtmueller, Alzenau, DE;
Inventors:
Assignee:
Evonik Degussa GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07D 317/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Processes for preparing monochloroethylene carbonate include reacting ethylene carbonate with chlorine gas in a liquid phase under irradiation of UV light and introducing a separate feed of an inert gas into the liquid phase. Monochloroethylene carbonate may be subsequently converted to vinylene carbonate.