ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,808, issued on April 15, was assigned to BASF SE (Ludwigshafen, Germany).
"Method for producing superabsorbent particles" was invented by Rene Callot (Antwerp, Belgium), Karl Possemiers (Antwerp, Belgium), Ruediger Funk (Ludwigshafen, Germany), Marco Krueger (Ludwigshafen, Germany), Matthias Weismantel (Ludwigshafen, Germany) and Juergen Schroeder (Ludwigshafen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt dryer, grinding, classifying, and optionally thermal surf...