Polyketone powder for laser sintering
AssigneeLUMAS Polymers LLC
InventorsSteven Kubiak, Zachary Peterson, Nicholas John Dippel, Mathew Artin Torosian, Thomas Fry
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Abstract
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 20° C./min and a D90 particle size of at most 300 micrometers and average particle size of 1 micrometer to 150 micrometers equivalent spherical diameter. In another instance, A composition is comprised of a semicrystalline polyketone powder having a melt peak and a recrystallization peak, wherein the melt peak and recrystallization peak fail to overlap.
Claims18
A method of forming an additive manufactured article comprising selectively fusing by directed melting of a composition comprising a semicrystalline polyketone powder having a bimodal melt peak determined by an initial differential scanning calorimetry (DSC) scan at 20° C./min and a D90 particle size of at most 300 micrometers and average particle size of 1 micrometer to 150 micrometers equivalent spherical diameter.
Dependencies are inferred from the claim text.