US Patent Issued to Hanwha Azdel on Oct. 28 for "Prepregs, cores and articles including expandable graphite materials" (Virginia, Michigan, Georgia Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,121, issued on Oct. 28, was assigned to Hanwha Azdel Inc. (Forest, Va.).

"Prepregs, cores and articles including expandable graphite materials" was invented by Ruomiao Wang (Forest, Va.), Yu-Tsan Tseng (Kennesaw, Ga.), Mark O. Mason (Covington, Va.), Troy D. Robertz (Lake Orion, Mich.) and Erich J. Vorenkamp (Pinckney, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Prepregs, composites and articles comprising expandable graphite materials dispersed in a thermoplastic layer are described. In some instances, a thermoplastic composite article comprises a porous core layer comprising a plurality of reinforcing fibers and a thermoplastic material, ...