US Patent Issued to WestRock MWV on Oct. 6 for "Polylactide formulation for improved extrusion processing" (Virginia Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,555, issued on Oct. 6, was assigned to WestRock MWV LLC (Atlanta).

"Polylactide formulation for improved extrusion processing" was invented by Rahul Bhardwaj (Glen Allen, Va.), Chitai C. Yang (Glen Allen, Va.), Justin L. Bennett (Richmond, Va.) and Courtney R. Johnson (Midlothian, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A paperboard structure includes a paperboard substrate having a first surface and an opposed second surface. A biopolymer coating is applied by extrusion or co-extrusion to at least one of the first surface and the second surface. The biopolymer coating includes an inorganic melt curtain stabilizer, a polylactide resin havi...