US 12,330,213 B2
Three-dimensional printing with supportive coating agents
Ben Pon, Palo Alto, CA (US); John Samuel Dilip Jangam, Palo Alto, CA (US); Kyle Wycoff, Palo Alto, CA (US); and Lihua Zhao, Palo Alto, CA (US)
Assigned to Peridot Print, LLC, Palo Alto, CA (US)
Appl. No. 17/641,253
Filed by PERIDOT PRINT LLC, Palo Alto, CA (US)
PCT Filed Nov. 8, 2019, PCT No. PCT/US2019/060517
§ 371(c)(1), (2) Date Mar. 8, 2022,
PCT Pub. No. WO2021/091572, PCT Pub. Date May 14, 2021.
Prior Publication US 2022/0331865 A1, Oct. 20, 2022
Int. Cl. B22F 10/14 (2021.01); B22F 1/052 (2022.01); B22F 1/107 (2022.01); B22F 1/16 (2022.01); B33Y 10/00 (2015.01); B33Y 70/10 (2020.01); B33Y 30/00 (2015.01)
CPC B22F 10/14 (2021.01) [B22F 1/107 (2022.01); B33Y 10/00 (2014.12); B33Y 70/10 (2020.01); B22F 2301/205 (2013.01); B22F 2302/45 (2013.01); B22F 2304/10 (2013.01); B33Y 30/00 (2014.12)] 15 Claims
OG exemplary drawing
 
1. A three-dimensional printing kit, comprising:
a particulate build material including from about 80 wt % to about 100 wt % of metal particles based on the total weight of the particulate build material;
a binding agent including binder particles dispersed in a binder liquid vehicle; and
a supportive coating agent including:
ceramic particles having a negative coefficient of thermal expansion;
a gelling compound selected from the group consisting of sodium metasilicate, potassium metasilicate, sodium orthosilicate, sodium pyrosilicate, organo orthosilicate, tetraethyl orthosilicate, and a combination thereof; and
a supportive coating liquid vehicle,
wherein a weight ratio of the ceramic particles to the gelling compound ranges from about 1:1 to about 1:9.