ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,197, issued on March 31, was assigned to Stora Enso OYJ (Helsinki).
"Bio-based carbon foam" was invented by David Masson (Johanneshov, Sweden) and Stephan Walter (Bochum, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to bio-based carbon foams, a method for their manufacturing and their use. The method comprises foaming a slurry of cellulose fibres to obtain a cellulose fibre foam, adding a biomass component to the foam, and carbonization of the biomass-cellulose fibre foam."
The patent was filed on Sept. 27, 2021, under Application No. 18/246,215.
*For further information, including images, charts and tables...