ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,364, issued on Sept. 30, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Method for processing benzene polycarboxylic acid esters and use of same to produce cyclohexane polycarboxylic acid esters" was invented by Piotr Makarczyk (Ludwigshafen am Rhein, Germany), Boris Breitscheidel (Ludwigshafen am Rhein, Germany), Zsolt Szarka (Ludwigshafen am Rhein, Germany) and Sonja Judat (Ludwigshafen am Rhein, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for purifying benzenepolycarboxylic esters and for preparing cyclohexanepolycarboxylic esters by hydrogenating the purified benzenepolycarboxyli...