ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,111, issued on Sept. 1, was assigned to PROMERUS LLC (Akron, Ohio).

"Palladium catalysts for forming vinyl addition polymers having improved film forming properties" was invented by Shun Hayakawa (Tokyo), Hugh Burgoon (Akron, Ohio), J. Alex Niemiec (Akron, Ohio), Doug Skilskyj (Akron, Ohio) and Larry F Rhodes (Akron, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A series of palladium compounds as described herein are found to be superior vinyl addition polymerization catalysts. Specifically the compounds of formulae (I) and (II) as described herein surprisingly exhibit much higher reactivity than the compounds known in the art in the vinyl add...