ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,785, issued on Sept. 15, was assigned to Stora Enso OYJ (Helsinki).
"Laminates" was invented by Kaj Backfolk (Villmanstrand, Finland), Isto Heiskanen (Imatra, Finland), Jukka Kankkunen (Imatra, Finland) and Anna Nyberg Zetterlund (Karlstad, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to packaging materials in the form of laminates comprising a paper or paperboard substrate and a barrier film. The barrier film is based on microfibrillated cellulose. The laminate comprises a paper or paperboard substrate, wherein the substrate is in contact with a first adhesive layer, which is in contact with a second adhesive...