	US 12,473,400 B2
	Polyketone powder for laser sintering
Steven Kubiak, Edina, MN (US); Zachary Peterson, New Hope, MN (US); Nicholas John Dippel, Burnsville, MN (US); Mathew Artin Torosian, Highlands Ranch, CO (US); and Thomas Fry, Victoria, MN (US)
Assigned to LUMAS Polymers LLC, Chaska, MN (US)
Filed by LUMAS Polymers LLC, Chaska, MN (US)
Filed on May 16, 2022, as Appl. No. 17/745,169.
Claims priority of provisional application 63/217,451, filed on Jul. 1, 2021.
Claims priority of provisional application 63/189,609, filed on May 17, 2021.
Prior Publication US 2022/0363825 A1, Nov. 17, 2022
Int. Cl. C08G 67/02 (2006.01); B29B 9/02 (2006.01); B29B 13/02 (2006.01); B29C 64/153 (2017.01); B29C 64/314 (2017.01); B33Y 40/10 (2020.01); B33Y 70/00 (2020.01); C08J 3/12 (2006.01); C08J 3/14 (2006.01); C08J 9/00 (2006.01); C08J 9/36 (2006.01); C08L 73/00 (2006.01); C09D 5/03 (2006.01); C09D 173/00 (2006.01); B29K 61/00 (2006.01); B29K 71/00 (2006.01)

CPC C08G 67/02 (2013.01) [B29B 9/02 (2013.01); B29B 13/021 (2013.01); B29C 64/314 (2017.08); B33Y 40/10 (2020.01); B33Y 70/00 (2014.12); C08J 3/12 (2013.01); C08J 3/14 (2013.01); C08J 9/0004 (2013.01); C08J 9/36 (2013.01); C08L 73/00 (2013.01); C09D 5/031 (2013.01); C09D 173/00 (2013.01); B29C 64/153 (2017.08); B29K 2061/00 (2013.01); B29K 2071/00 (2013.01); B29K 2995/004 (2013.01); C08G 2140/00 (2013.01); C08G 2150/20 (2013.01); C08J 2201/054 (2013.01); C08J 2361/02 (2013.01); C08J 2373/00 (2013.01); C08L 2205/025 (2013.01)]

18 Claims

1. 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 D₉₀particle size of at most 300 micrometers and average particle size of 1 micrometer to 150 micrometers equivalent spherical diameter.