US Patent Issued to Dow Global Technologies on June 3 for "Bidentate diazinylamido complexes as catalysts for olefin polymerization" (Michigan Inventor)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,760, issued on June 3, was assigned to Dow Global Technologies LLC (Midland, Mich.).

"Bidentate diazinylamido complexes as catalysts for olefin polymerization" was invented by Bryan D. Stubbert (Midland, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Catalyst systems comprising a metal-ligand complex according to formula (I):where: M is a metal chosen from zirconium or hafnium, the metal having a formal oxidation state of +2, +3, or +4; each X is a monodentate or bidentate ligand independently chosen from (C1-C40) hydrocarbyl, (C6-C20) aryl, (C6-C20) heteroaryl, or halogen; n is 2 or 3; R1, R2, R5a, R5b, and R6 are independently chosen from (C1...