US Patent Issued to BRIDGESTONE on Dec. 30 for "Rubber composition and tire obtained using same" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,558, issued on Dec. 30, was assigned to BRIDGESTONE Corp. (Tokyo).

"Rubber composition and tire obtained using same" was invented by Yasuhiro Shoda (Tokyo), Hideyuki Otsuka (Tokyo) and Daisuke Aoki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides: a rubber composition having a good low heat generation property and is excellent in high elastic modulus and fracture resistance, and a tire using the rubber composition. The rubber composition contains a rubber component that contains a diene rubber, and the diene rubber contains a polymer (A) of a copolymer that has, in one molecule, a block moiety containing a urethan...