ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,419, issued on Aug. 5, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).
"Aqueous polymer latex" was invented by Roelof Balk (Boehl-Iggelheim, Germany), Bastiaan Lohmeijer (Ludwigshafen am Rhein, Germany) and Robert Wrazidlo (Ludwigshafen am Rhein, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Aqueous polymer latexes of film-forming copolymers obtainable by aqueous emulsion polymerisation of at least one non-ionic monomer M1; and one or more monoethylenically unsaturated monomers M2;and where the polymer latex contains an emulsifier comprising i. at least one first emulsifier (1), and ii. at least one second emulsifier (2). The prese...