ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,183, issued on Aug. 5, was assigned to Evonik Operations GmbH (Essen, Germany).
"Process for preparing glycerol carbonate (meth)acrylate" was invented by Marcel Treskow (Darmstadt, Germany), Gunther Graff (Bensheim, Germany), Maik Caspari (Alsbach-Haehnlein, Germany), Thorben Schutz (Alsbach-Haehnlein, Germany) and Steffen Krill (Muehltal, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 ...