US 12,264,108 B2
Zirconia particles and method for producing zirconia particles
Shaowei Yang, Qingdao (CN); Minoru Tabuchi, Chiba (JP); Jianjun Yuan, Chiba (JP); Cheng Liu, Qingdao (CN); Meng Li, Qingdao (CN); Wei Zhao, Qingdao (CN); and Jian Guo, Qingdao (CN)
Assigned to DIC Corporation, Tokyo (JP)
Appl. No. 18/254,296
Filed by DIC Corporation, Tokyo (JP)
PCT Filed Dec. 16, 2020, PCT No. PCT/CN2020/136868
§ 371(c)(1), (2) Date May 24, 2023,
PCT Pub. No. WO2022/126435, PCT Pub. Date Jun. 23, 2022.
Prior Publication US 2024/0092699 A1, Mar. 21, 2024
Int. Cl. C04B 35/488 (2006.01); C04B 35/64 (2006.01)
CPC C04B 35/488 (2013.01) [C04B 35/64 (2013.01); C04B 2235/3246 (2013.01); C04B 2235/3256 (2013.01); C04B 2235/656 (2013.01); C04B 2235/781 (2013.01); C04B 2235/94 (2013.01); C04B 2235/95 (2013.01)] 10 Claims
OG exemplary drawing
 
1. Zirconia particles comprising molybdenum and each of the zirconia particles having a polyhedron shape, wherein the zirconia particles have a [11-1] plane crystallite size of 90 nm or more,
wherein a surface uneven distribution ratio (M2/M1) of a MoO3 content (M2) based on 100 mass % of surface layers of the zirconia particles as determined by XPS surface analysis of the zirconia particles to a MoO3 content (M1) based on 100 mass % of the zirconia particles as determined by XRF analysis of the zirconia particles is from 2 to 80.