	US 12,281,020 B2
	Metahalloysite powder and metahalloysite powder production method
Hidefumi Konnai, Tokyo (JP)
Assigned to JFE MINERAL COMPANY, LTD., Tokyo (JP)
Appl. No. 17/049,443
Filed by JFE MINERAL COMPANY, LTD., Tokyo (JP)
PCT Filed Apr. 24, 2019, PCT No. PCT/JP2019/017357 § 371(c)(1), (2) Date Oct. 21, 2020, PCT Pub. No. WO2019/208612, PCT Pub. Date Oct. 31, 2019.
Claims priority of application No. 2018-084243 (JP), filed on Apr. 25, 2018.
Prior Publication US 2021/0261421 A1, Aug. 26, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C01B 33/40 (2006.01); B82Y 40/00 (2011.01)

CPC C01B 33/40 (2013.01) [B82Y 40/00 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/13 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01)]

9 Claims

1. Metahalloysite powder comprising a granule that is an aggregate of metahalloysite including a metahalloysite nanotube that is tube-shaped metahalloysite,

wherein the granule includes a first pore derived from a tube hole of the metahalloysite nanotube, and a second pore different from the first pore,

wherein a differential pore distribution determined from a nitrogen adsorption isotherm by the BJH method exhibits two or more pore size peaks in a range from 10 to 100 nm,

wherein an average pore size is not more than 35.7 nm, and

wherein a total pore volume is not more than 0.41 cm³/q.