US Patent Issued to UPM-KYMMENE on Sept. 30 for "Method and an apparatus for forming a lignin fraction, a lignin composition and its use" (Finnish Inventor)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,440, issued on Sept. 30, was assigned to UPM-KYMMENE Corp. (Helsinki).

"Method and an apparatus for forming a lignin fraction, a lignin composition and its use" was invented by Mauno Miettinen (Lappeenranta, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method and an apparatus for forming a lignin fraction from crude lignin which has been processed by means of a treatment step selected from enzymatic treatment, treatment with ionic liquid and their combinations. The method comprises treating the crude lignin (1) by a lignin liberation in at least one lignin liberation step (3), and separating a lignin fraction (6...