US Patent Issued to Stora Enso on July 14 for "Method for manufacturing a barrier film, and a barrier film" (Finnish, Swedish, German Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,232, issued on July 14, was assigned to Stora Enso OYJ (Helsinki).

"Method for manufacturing a barrier film, and a barrier film" was invented by Kaj Backfolk (Lappeenranta, Finland), Isto Heiskanen (Imatra, Finland), Matthias Kratschell (Berlin) and Cecilia Land Hensdal (Forshaga, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for manufacturing a barrier film, wherein the method comprises: -providing an aqueous suspension comprising at least 70 weight-% highly refined cellulose pulp having an SR value of 70-95 and having a content of fibers having a lengthless than0.2 mm of at least 10 million fibers...