US Patent Issued to LUMAS Polymers on March 25 for "Polyketone powder for laser sintering" (Minnesota, Colorado Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,446, issued on March 25, was assigned to LUMAS Polymers LLC (Chaska, Minn.).

"Polyketone powder for laser sintering" was invented by Steven Kubiak (Edina, Minn.), Zachary Peterson (New Hope, Minn.), Nicholas John Dippel (Burnsville, Minn.), Mathew Artin Torosian (Highlands Ranch, Colo.) and Thomas Fry (Victoria, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one instance a semicrystalline polyketone powder useful for additive manufacturing is comprised of a bimodal melt peak determined by an initial differential scanning calorimetry (DSC) scan at 20deg C./min and a D90 particle size of at most 300 micrometers and average particle size of 1...