ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,513, issued on Dec. 9, was assigned to Stora Enso OYJ (Helsinki).
"Water-resistant mineral-coated cellulose-based substrate" was invented by Susanne Hansson (Tyreso, Sweden) and Raija Badenlid (Karlstad, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a water-resistant mineral-coated cellulose-based substrate, comprising a cellulose-based substrate, and a mineral-coating layer disposed on at least one surface of said substrate, said mineral coating comprising 50-95 wt % of a particulate mineral and 5-50 wt % of a water-dispersible binder based on the total dry weight of the mineral coating, and wherein said mine...