ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,139, issued on Sept. 1, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).
"Polymeric sorbents for aldehydes and methods of making" was invented by Michael S. Wendland (North St. Paul, Minn.), Himanshu Jasuja (Woodbury, Minn.) and Michael W. Kobe (Lake Elmo, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Polymeric sorbents for aldehydes including formaldehyde and acetaldehyde are provided. More particularly, the polymeric sorbents are sulfonic acid-containing polymeric materials with impregnated urea-based compounds. Additionally, methods of making the polymeric sorbent, methods of sorbing aldehydes (i.e., aldehydes that are volat...