US Patent Issued to Cargill on July 14 for "Rejuvenating compounds in high performance asphalt compositions with high recycled content" (Minnesota Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,769, issued on July 14, was assigned to Cargill Inc. (Wayzata, Minn.).

"Rejuvenating compounds in high performance asphalt compositions with high recycled content" was invented by Todd Kurth (Maple Grove, Minn.), Scott Nivens (Minneapolis), Christopher Stevermer (St. Louis Park, Minn.), Anthony Joseph Sylvester (Minneapolis) and Hassan Tabatabaee (Plymouth, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a rejuvenated asphalt and a method of rejuvenating asphalt comprising mixing a rejuvenator, bitumen, and aggregate to obtain an asphalt mixture, wherein the rejuvenator is present in an amount ranging from about 0.1-40 wt % ...