US Patent Issued to KEMIRA on Feb. 17 for "GPAM compositions and methods" (Finnish, American Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,188, issued on Feb. 17, was assigned to KEMIRA OYJ (Helsinki).

"GPAM compositions and methods" was invented by Chen Lu (Marietta, Ga.), Christopher Michael Lewis (Helsinki) and William James Garrisi (Helsinki).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure generally relates to glyoxalated polyacrylamide (GPAM) compositions, methods of preparation and methods of use thereof, particularly in the paper industry. Moreover, the present disclosure generally pertains to cationic GPAM compositions, methods of preparation and methods of use thereof in papermaking applications and in products such as paper-based products, wherein the cat...