US Patent Issued to SUMITOMO RUBBER INDUSTRIES on July 28 for "Tire" (Japanese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,707, issued on July 28, was assigned to SUMITOMO RUBBER INDUSTRIES LTD. (Kobe, Japan).

"Tire" was invented by Kensuke Washizu (Kobe, Japan) and Kazuo Hochi (Kobe, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a tire comprising a tread at least having two layers each comprising a rubber component and a plasticizer, wherein a difference (AE1-AE2) between an acetone extraction amount AE1 of the rubber composition of the first layer and an acetone extraction amount AE2 of the rubber composition of the second layer is greater than 6.0% by mass, and wherein, with the first layer and the second layer being attached together, when they ar...