US Patent Issued to KURARAY on Feb. 18 for "Production method for modified vinyl alcohol-based polymer particles and particles obtained using same" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,227,607, issued on Feb. 18, was assigned to KURARAY Co. LTD. (Kurashiki, Japan).

"Production method for modified vinyl alcohol-based polymer particles and particles obtained using same" was invented by Yuki Tachibana (Kurashiki, Japan), Yusuke Amano (Kurashiki, Japan), Yuki Shimizu (Kurashiki, Japan) and Kazuhiko Maekawa (Kurashiki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of producing modified vinyl alcohol-based polymer particles, includes mixing vinyl alcohol-based polymer particles with a mixed medium containing unsaturated carboxylic acid, an acid catalyst, and water, wherein, by mixing the vinyl alcohol-based polymer particles...