ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,781, issued on Oct. 20, was assigned to Basell Poliolefine Italia S.r.l. (Milan).
"Catalytic oxidative depolymerization process" was invented by Daniel F. White (Houston), Sandor Nagy (Seabrook, Texas), Christopher D. Smith (Kingwood, Texas), David L. Ramage (Friendswood, Texas) and Noel C. Hallinan (Loveland, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "Catalytic compositions for depolymerizing polyolefin-based waste material into useful petrochemical products and methods of use are described. The catalytic compositions are mixed metal oxides demonstrating equal or higher conversion than noncatalytic pyrolysis. These mixed metal oxide cataly...