US Patent Issued to Lumas Polymers on Jan. 28 for "Semicrystalline pulverulent polyarylethersulfones and method to make them" (Minnesota Inventors)

ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,200, issued on Jan. 28, was assigned to Lumas Polymers LLC (Chaska, Minn.).

"Semicrystalline pulverulent polyarylethersulfones and method to make them" was invented by Thomas George Gardner (Chanhassen, Minn.) and John Gordon Eue (St. Louis Park, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semicrystalline polyarylethersulfone (PAES) useful for additive manufacturing may be made by a method comprising: dissolving an amorphous polyarylethersulfone in a polar aprotic halogenated hydrocarbon solvent at a temperature adequate to effectively form a solution, and subsequently and spontaneously bring about reprecipitation of a semicrystalline pol...