	US 12,187,847 B2
	Polyketone powder for laser sintering
Thomas Fry, Victoria, MN (US); John G. Eue, St. Louis Park, MN (US); Steven Kubiak, Edina, MN (US); Zachary Peterson, New Hope, MN (US); Nicholas John Dippel, Burnsville, MN (US); and Mathew Artin Torosian, Highlands Ranch, CO (US)
Assigned to LUMAS Polymers LLC, Chaska, MN (US)
Appl. No. 18/289,865
Filed by LUMAS Polymers LLC, Chaska, MN (US)
PCT Filed May 16, 2022, PCT No. PCT/US2022/029424 § 371(c)(1), (2) Date Nov. 7, 2023, PCT Pub. No. WO2022/245722, PCT Pub. Date Nov. 24, 2022.
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 2024/0270905 A1, Aug. 15, 2024
Int. Cl. C08G 67/02 (2006.01); B29B 9/02 (2006.01); B29B 13/02 (2006.01); B29C 64/314 (2017.01); B33Y 40/10 (2020.01); B33Y 70/00 (2020.01); C08J 3/14 (2006.01); C08J 9/00 (2006.01); C08J 9/36 (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 3/14 (2013.01); C08J 9/0004 (2013.01); C08J 9/36 (2013.01); C09D 5/031 (2013.01); C09D 173/00 (2013.01); B29K 2061/00 (2013.01); B29K 2071/00 (2013.01); B29K 2995/004 (2013.01); C08G 2150/20 (2013.01); C08J 2201/054 (2013.01); C08J 2361/02 (2013.01); C08J 2373/00 (2013.01)]

20 Claims

1. A composition comprising a semicrystalline aliphatic polyketone powder that has a melt peak having a melt peak enthalpy of at least 50 joules/gram as determined by differential scanning calorimetry (DSC) using a heating rate of 10° C./min, wherein the semicrystalline aliphatic polyketone is represented by:

where A is the residue of an alkene monomer converted to a saturated hydrocarbon group, m is from about 1 to 6 and n is at least about 2 to 10,000.