US Patent Issued on Dec. 30 for "Method for obtaining water-based paints using expanded polystyrene (EPS) waste and/or extruded polystyrene (XPS) waste as raw material" (Chilean Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,607, issued on Dec. 30.

"Method for obtaining water-based paints using expanded polystyrene (EPS) waste and/or extruded polystyrene (XPS) waste as raw material" was invented by Cristina Lucia Acuna Rougier (Santiago, Chile) and Constanza Catalina de Lourdes Cifuentes Eaglehurst (Santiago, Chile).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for obtaining water-based paints using expanded polystyrene (EPS) and/or extruded polystyrene (XPS) waste as raw material by a) cleaning the EPS and/or XPS waste with a surfactant to remove organic matter; b) rinse and remove all surfactants and solvents; c) treating the EPS and/or XPS waste with an org...