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:
Aug. 05, 2025
Filed:
Oct. 02, 2020
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Marcel Treskow, Darmstadt, DE;
Günther Gräff, Bensheim, DE;
Maik Caspari, Alsbach-Haehnlein, DE;
Thorben Schütz, Alsbach-Haehnlein, DE;
Steffen Krill, Muehltal, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/4745 (2006.01); A61K 31/4704 (2006.01); A61P 35/00 (2006.01); C07C 68/06 (2020.01);
U.S. Cl.
CPC ...
C07C 68/06 (2013.01);
Abstract
A process prepares glycerol carbonate (meth)acrylate by transesterification of methyl (meth)acrylate with glycerol carbonate, in the presence of a zirconium acetylacetonate catalyst. The catalyst is pretreated with 2% by weight to 25% by weight of water, based on the amount of catalyst.