US Patent Issued to NIPPON STEEL Chemical & Material on Aug. 25 for "Polyfunctional vinyl aromatic copolymer and method for manufacturing same, copolymer rubber obtained therefrom, rubber composition, rubber crosslinked material, and tire member" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,943, issued on Aug. 25, was assigned to NIPPON STEEL Chemical & Material Co. Ltd. (Tokyo).

"Polyfunctional vinyl aromatic copolymer and method for manufacturing same, copolymer rubber obtained therefrom, rubber composition, rubber crosslinked material, and tire member" was invented by Masanao Kawabe (Tokyo), Tadashi Kuratomi (Tokyo) and Shinichi Iwashita (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a polyfunctional vinyl aromatic copolymer having reactivity and solubility that can be used for manufacturing a copolymer rubber and a copolymer rubber material having processability, strength and homogeneity obtained therefrom. The p...