ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,532, issued on Dec. 23, was assigned to THE GOODYEAR TIRE & RUBBER COMPANY (Akron, Ohio).
"Rubber composition and truck tire" was invented by Jean-Noel Marsat (Hagen, Luxembourg) and Marine Sophie Francoise Wassen (Mersch, Luxembourg).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is directed to a rubber composition for a truck tire, the rubber composition comprising 70 phr to 95 phr of polyisoprene, 5 phr to 30 phr of a polybutadiene rubber having a cis content of less than 60% and being functionalized for the coupling to silica, as well as 40 phr to 80 phr of a filler comprising predominantly silica. Furthermore, the present i...