ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,352, issued on Dec. 16, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Process for producing isocyanates" was invented by Jan Pablo Josch (Ludwigshafen am Rhein, Germany), Matthias Hinrichs (Ludwigshafen am Rhein, Germany), Jens Ferbitz (Ludwigshafen am Rhein, Germany), Kai Thiele (Antwerp, Belgium), Torsten Mattke (Ludwigshafen am Rhein, Germany) and Stefan Maixner (Ludwigshafen am Rhein, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a process for producing isocyanates by reacting the corresponding amines with phosgene in the liquid phase, comprising: (a) mixing an amine comprising feed stream, a phosge...