ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,452, issued on Feb. 24, was assigned to CYNIO GmbH (Bitterfeld-Wolfen, Germany).
"Method for the synthesis of isocyanates" was invented by Edwin Kroke (Halsbrucke, Germany), Franziska Grundler (Freiberg, Germany), Marcus Herbig (Freiberg, Germany) and Marlene-Kirstin Baumhardt (Freiberg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for the preparation of isocyanates. Here it is provided that (i) a first organosilicon compound having at least one silicon atom Si1 and a unit of formula G-I bound thereto is converted to a third organosilicon compound having a unit of formula G-II by silylation of the NH grou...