US Patent Issued to Bridgestone Americas Tire Operations on Sept. 9 for "Anionic dispersion polymerization process to make random copolymer rubber" (Ohio Inventors)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,274, issued on Sept. 9, was assigned to Bridgestone Americas Tire Operations LLC (Nashville, Tenn.).

"Anionic dispersion polymerization process to make random copolymer rubber" was invented by David M. Roggeman (North Royalton, Ohio), James J. Kuhel III (Stow, Ohio) and Terrence E. Hogan (Uniontown, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments are directed to anionic rubber polymerization processes conducted in a non-aqueous dispersion utilizing conjugated diene and vinyl aromatic monomers and a dispersing agent formed in-situ during the polymerization process."

The patent was filed on Oct. 14, 2020, under Application No. 17/768...