ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,658, issued on July 21, was assigned to INV Nylon Chemicals Americas LLC (Wilmington, Del.).
"Bidentate phosphite 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 bidentate phosphite ligand having the following structure: Formula (I) wherein each R1 group is an alkyl group or an aryl group and the two R1 groups bonded to the same phosphorus atom may be interconnected, wherein, when each R1 group is an alkyl group, the two alkyl groups bon...