ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,990, issued on Aug. 19, was assigned to Teknologian tutkimuskeskus VTT Oy (Espoo, Finland).
"Use of thermoplastic cellulose composite for additive manufacturing" was invented by Kirsi Immonen (Tampere, Finland), Eino Sivonen (Tampere, Finland), Sini Metsa-Kortelainen (Espoo, Finland), Jarmo Ropponen (Espoo, Finland) and Pia Willberg-Keyrilainen (Espoo, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a thermoplastic cellulose composite for additive manufacturing. The composite comprises at least 50 weight-% of total cellulose, a plasticizer, and a coupling agent of an epoxy-modified polyunsaturated fatty acid. ...