ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,845, issued on Aug. 25, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).
"Process for preparing N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexane-1,6-diamine" was invented by Alexander Michael Haydl (Mannheim, Germany), Michael Schmitt (Ludwigshafen am Rhein, Germany) and Elena Capito' (Pontecchio Marconi, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for preparing N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexane-1,6-diamine. The present invention further relates to the use of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexane-1,6-diamine to prepare poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-...