US Patent Issued to Stora Enso on April 7 for "Multilayer film comprising highly refined cellulose fibers" (Finnish Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,627, issued on April 7, was assigned to Stora Enso OYJ (Helsinki).

"Multilayer film comprising highly refined cellulose fibers" was invented by Isto Heiskanen (Imatra, Finland), Kaj Backfolk (Lappeenranta, Finland), Anna Kauppi (Lappeenranta, Finland) and Jukka Kankkunen (Imatra, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for manufacturing a multilayer film comprising highly refined cellulose fibers, the method comprising the steps of: a) forming a first wet web by applying a first pulp suspension comprising highly refined cellulose fibers on a first wire; b) partially dewatering the first wet we...