ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,537, issued on Sept. 29, was assigned to Papershell AB (Tibro, Sweden).
"Cellulosic fiber material and process" was invented by Anders Breitholtz (Vastra Frolunda, Sweden) and Mathieu Gustafsson Aplehag (Hagersten, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a cellulosic fiber substrate, comprising at least one top surface and at least one bottom surface. The cellulosic fiber substrate further comprises 60 to 90 wt % of cellulosic fibers having a length of maximum 10 mm, 0 to 10% of an acidic curing catalyst and 10 to 40 wt % of a binding agent selected form the group consisting of: cellulose, hemicellulos...