US Patent Issued to Mitsuboshi Belting on May 20 for "Rubber composition and friction transmission belt" (Japanese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,029, issued on May 20, was assigned to Mitsuboshi Belting Ltd. (Kobe, Japan).

"Rubber composition and friction transmission belt" was invented by Mayu Esaka (Hyogo, Japan) and Yusuke Hemmi (Hyogo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rubber composition includes an elastomer component, a polyvinyl pyrrolidone-based resin, and a non-water-absorbent short fiber, and includes substantially no water-absorbent fiber. The elastomer component may include an ethylene-Alpha-olefin elastomer. The polyvinyl pyrrolidone-based resin may have a K value of 10 to 100. The non-water-absorbent short fiber may include an aliphatic polyamide short fibe...