US Patent Issued to BASF on April 22 for "Process for preparing stable polymers containing vinylimidazole" (German Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,225, issued on April 22, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Process for preparing stable polymers containing vinylimidazole" was invented by Stephan Hueffer (Ludwigshafen, Germany), Roland Ettl (Ludwigshafen, Germany), Ruediger Lukas (Ludwigshafen, Germany), Andrea Schiller (Ludwigshafen, Germany), Frank Dietsche (Ludwigshafen, Germany) and Juergen Detering (Ludwigshafen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are aqueous mixtures including water, 1-vinylimidazole-containing polymer(s) (P) and quaternary ammonium salts (QA). Also described herein are methods of production and use of same."

The...