US Patent Issued to INV Nylon Chemicals Americas on Jan. 13 for "Arsenic-containing ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions" (Texas, Kansas Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,703, issued on Jan. 13, was assigned to INV Nylon Chemicals Americas LLC (Wilmington, Del.).

"Arsenic-containing ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions" was invented by Benjamin David Herzog (Wichita, Kan.) and William J. Tenn III (Beaumont, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ligand which contains arsenic and has the formula (I): where n is 2 and the ligand is bidentate; each X is O or NH; and Ar1 and Ar2 may be the same or different and each is an aryl group, provided that each Ar1 group connected to the same As atom may be combined to form a single ...