	US 12,247,325 B2
	Development of bio-composite materials for 3D printing using milk proteins
John Obielodan, Jr., Platteville, WI (US); and Tsunghsueh Wu, Platteville, WI (US)
Assigned to WiSys Technology Foundation, Inc., Madison, WI (US)
Filed by WiSys Technology Foundation, Inc., Madison, WI (US)
Filed on Jun. 9, 2021, as Appl. No. 17/342,803.
Claims priority of provisional application 63/036,581, filed on Jun. 9, 2020.
Prior Publication US 2021/0381130 A1, Dec. 9, 2021
Int. Cl. D01F 8/02 (2006.01); B33Y 70/00 (2020.01); C08J 3/20 (2006.01); C08L 67/04 (2006.01); C08L 97/00 (2006.01); D01D 5/30 (2006.01)

CPC D01F 8/02 (2013.01) [B33Y 70/00 (2014.12); C08J 3/20 (2013.01); C08L 67/04 (2013.01); C08L 97/005 (2013.01); D01D 5/30 (2013.01); C08J 2367/04 (2013.01); C08J 2489/00 (2013.01); C08L 2201/06 (2013.01); D10B 2201/01 (2013.01); D10B 2211/24 (2013.01); D10B 2331/04 (2013.01); D10B 2401/041 (2013.01); D10B 2401/12 (2013.01)]

12 Claims

1. A 3-D printer filament comprising a thermoplastic material including:

a first amount of polylactic acid;

wherein the amount of polylactic acid is greater than 30 weight percent of

the thermoplastic material; and a second amount of milk protein blended in the purified polylactic acid;

wherein the milk protein is greater than 10 weight percent of the thermoplastic material and the polylactic acid is greater than the milk protein by weight percent.