	US 12,350,684 B2
	Production method and production device for resin powder or inorganic powder
Takashi Hasegawa, Nagoya (JP); Masaya Kuno, Nagoya (JP); Takahiro Fujii, Nagoya (JP); and Masanori Hiromoto, Nagoya (JP)
Assigned to TOAGOSEI CO., LTD., Tokyo (JP)
Appl. No. 18/717,208
Filed by TOAGOSEI CO., LTD., Tokyo (JP)
PCT Filed Dec. 15, 2022, PCT No. PCT/JP2022/046152 § 371(c)(1), (2) Date Jun. 6, 2024, PCT Pub. No. WO2023/120349, PCT Pub. Date Jun. 29, 2023.
Claims priority of application No. 2021-207850 (JP), filed on Dec. 22, 2021.
Prior Publication US 2025/0041875 A1, Feb. 6, 2025
Int. Cl. B03C 1/26 (2006.01); B07B 1/46 (2006.01)

CPC B03C 1/26 (2013.01) [B07B 1/4609 (2013.01); B03C 2201/20 (2013.01)]

5 Claims

1. A method for producing a resin powder or an inorganic powder, the method comprising:

a sieving step of sieving a resin powder to be processed or an inorganic powder to be processed using a sieving wire mesh having a Vickers hardness of 220 HV to 320 HV; and

a magnetic separation step of removing, from a resin powder or an inorganic powder containing a metal component after the sieving step, the metal component using a magnetic separator, wherein

the resin powder contains a crosslinked polymer, and

the inorganic powder contains an inorganic ion exchanger.