	US 12,441,623 B2
	Zirconium oxide nanoparticles, dispersion liquid and resin composition
Koichi Hirota, Osaka (JP); and Junya Kimura, Osaka (JP)
Assigned to NIPPON SHOKUBAI CO., LTD., Osaka (JP)
Appl. No. 17/610,320
Filed by NIPPON SHOKUBAI CO., LTD., Osaka (JP)
PCT Filed May 15, 2020, PCT No. PCT/JP2020/019433 § 371(c)(1), (2) Date Nov. 10, 2021, PCT Pub. No. WO2020/235476, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 2019-095849 (JP), filed on May 22, 2019.
Prior Publication US 2022/0259063 A1, Aug. 18, 2022
Int. Cl. C01G 25/02 (2006.01); B82Y 40/00 (2011.01)

CPC C01G 25/02 (2013.01) [B82Y 40/00 (2013.01); C01P 2002/74 (2013.01); C01P 2004/64 (2013.01)]

8 Claims

1. Zirconium oxide nanoparticles wherein

a ratio (D90/D50) of a cumulative 90% particle diameter D90 by volume to a cumulative 50% particle diameter D50 by volume in particle diameter measurement by a dynamic light scattering method is not larger than 3.0, and

a half width for a (101) plane in XRD measurement in which CuKα rays are used as a light source is not larger than 1.20°.