US Patent Issued to UPM-KYMMENE on Oct. 14 for "Method for manufacturing thermoplastic poly(vinyl alcohol) derivative in a melt state reaction and products thereof" (Finnish Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,820, issued on Oct. 14, was assigned to UPM-KYMMENE Corp. (Helsinki).

"Method for manufacturing thermoplastic poly(vinyl alcohol) derivative in a melt state reaction and products thereof" was invented by Kuisma Littunen (Lappeenranta, Finland), Harri Kosonen (Lappeenranta, Finland), Janne Antila (Hameenlinna, Finland), Jaakko Rautalahti (Valkeakoski, Finland) and Mikko Rissanen (Espoo, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for manufacturing thermoplastic poly(vinyl alcohol) derivative in a melt state reaction and a product thereof, wherein the method thermoplastic poly(vinyl alcohol) that has been d...