US Patent Issued to BASF on Aug. 4 for "Heterogeneous synthesis of methylene dianiline" (Belgian, German Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,253, issued on Aug. 4, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Heterogeneous synthesis of methylene dianiline" was invented by Andrei-Nicolae Parvulescu (Ludwigshafen am Rhein, Germany), Alvaro Gordillo Bolonio (Ludwigshafen am Rhein, Germany), Trees Maria De Baerdemaeker (Ludwigshafen am Rhein, Germany), Ulrich Mueller (Ludwigshafen am Rhein, Germany), Dirk de Vos (Leuven, Belgium) and Ka Yan Cheung (Leuven, Belgium).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a catalytic material for the preparation of one or more of 4,4'-methylenedianiline, 2,2'-methylenedianiline, 2,4'-methylenedianiline, and ...