	US 12,152,157 B2
	Additive manufacturing break away support material
Thomas Fry, Victoria, MN (US); Levi Loesch, Minneapolis, MN (US); and Jack Kadidlo, St. Petersburg, FL (US)
Assigned to LUMAS Polymers LLC, Chaska, MN (US)
Filed by LUMAS Polymers LLC, Chaska, MN (US)
Filed on Aug. 30, 2023, as Appl. No. 18/239,957.
Application 18/239,957 is a division of application No. 17/723,848, filed on Apr. 19, 2022, granted, now 11,773,283.
Claims priority of provisional application 63/176,604, filed on Apr. 19, 2021.
Prior Publication US 2023/0407126 A1, Dec. 21, 2023
Int. Cl. B29C 64/40 (2017.01); B33Y 70/00 (2020.01); C09D 125/06 (2006.01); B29C 64/118 (2017.01); B29K 25/00 (2006.01); B29K 67/00 (2006.01); B29K 77/00 (2006.01); B33Y 10/00 (2015.01)

CPC C09D 125/06 (2013.01) [B29C 64/40 (2017.08); B33Y 70/00 (2014.12); B29C 64/118 (2017.08); B29K 2025/06 (2013.01); B29K 2067/00 (2013.01); B29K 2077/00 (2013.01); B33Y 10/00 (2014.12)]

20 Claims

1. An additive manufactured article comprising at least two layers of a composition, comprising:

a blend of an elastomer toughened styrenic polymer having discreet domains of polymerized conjugate diene dispersed within a styrenic matrix; and

a vinyl aromatic-maleic anhydride copolymer,

wherein the elastomer toughened styrenic polymer is present in an amount of 25% to 50% by weight of the composition and the vinyl aromatic-maleic anhydride copolymer is present in an amount of 20% to 45% by weight of the composition.