ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,217, issued on Aug. 26, was assigned to SUMITOMO RUBBER INDUSTRIES LTD. (Hyogo, Japan).
"Rubber composition and pneumatic tire" was invented by Rie Yasuda (Hyogo, Japan) and Ryoji Matsui (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a rubber composition which provides a self-healing rubber with improved strength and wet grip performance, and a pneumatic tire including the rubber composition. The present disclosure relates to a rubber composition containing a rubber component having a functional group containing a cationic functional group and/or an anionic functional group, a filler capable of generating a charge paired w...