ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,664, issued on July 28, was assigned to Stora Enso OYJ (Helsinki).
"Multi-ply liner for use in corrugated board" was invented by Isto Heiskanen (Imatra, Finland), Jukka Kankkunen (Imatra, Finland), Ismo Saarinen (Lappeenranta, Finland), Jukka Lyyra (Jamsa, Finland), Juha Rvenniemi (Oriniemi, Finland), Harri Taipale (Vantaa, Finland) and Hannu Heikkinen (Helsinki).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a multi-ply liner for use in corrugated board, said multi-ply liner comprising: a first ply, and a second ply, wherein said first ply comprises at least 70 wt % unbleached kraft pulp and between 5-30 wt % neutral...