ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,796, issued on June 3, was assigned to ARKEMA FRANCE (Puteaux, France).
"Thermoplastic polymer composition for constructing 3D articles" was invented by Alexis Morfin (Serquigny, France) and Jean-Charles Durand (Serquigny, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a composition for the layer-by-layer building of a three-dimensional article by sintering of the composition brought about by electromagnetic radiation, the composition comprising a semicrystalline thermoplastic polymer powder and at least one wax, the wax having a dropping point which is greater than the crystallization temperature of the semicrystallin...