ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,824, issued on April 15, was assigned to Polystyvert Inc. (Anjou, Canada).
"Processes for recycling polystyrene waste" was invented by Roland Cote (St-Antoine-sur-Richelieu, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "There are provided recycled polystyrene polymers having a melt flow index of less than about 25 g/10 min. There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in p-cymene under conditions to obtain a polystyrene/p-cymene mixture, adding the polystyrene/p-cymene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyre...