US 11,951,678 B2
Method for manufacturing freestanding 3D printing structure
Yeong-jin Choi, Changwon-si (KR); Hui-suk Yun, Changwon-si (KR); and Hong-hyun Park, Changwon-si (KR)
Assigned to KOREA INSTITUTE OF MATERIALS SCIENCE, Changwon-si (KR)
Filed by Korea Institute Of Materials Science, Changwon-si (KR)
Filed on Oct. 14, 2021, as Appl. No. 17/501,298.
Claims priority of application No. 10-2020-0133375 (KR), filed on Oct. 15, 2020.
Prior Publication US 2022/0118686 A1, Apr. 21, 2022
Int. Cl. A61L 27/52 (2006.01); A61L 27/38 (2006.01); B29C 64/124 (2017.01); B33Y 10/00 (2015.01); B33Y 70/10 (2020.01); B33Y 80/00 (2015.01)
CPC B29C 64/124 (2017.08) [A61L 27/38 (2013.01); A61L 27/52 (2013.01); B33Y 10/00 (2014.12); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12)] 18 Claims
OG exemplary drawing
 
1. A method for manufacturing a 3D printing structure, the method comprising: producing a molded body by performing 3D printing on paste including printing powder in a coagulation bath including a hydrogel; hardening the molded body produced in the coagulation bath; and removing the hydrogel in the coagulation bath; and completely hardening the molded body after the removing of the hydrogel in the coagulation bath, wherein the completely hardening of the molded body is performed at a temperature of 20° C. to 60° C.