US 11,945,727 B2
Zirconia-based porous body
Kazuya Matsumoto, Osaka (JP)
Assigned to DAIICHI KIGENSO KAGAKU KOGYO CO., LTD., Osaka (JP)
Appl. No. 17/311,648
Filed by DAIICHI KIGENSO KAGAKU KOGYO CO., LTD., Osaka (JP)
PCT Filed Mar. 13, 2020, PCT No. PCT/JP2020/011191
§ 371(c)(1), (2) Date Jun. 7, 2021,
PCT Pub. No. WO2020/195973, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-063853 (JP), filed on Mar. 28, 2019.
Prior Publication US 2022/0106195 A1, Apr. 7, 2022
Int. Cl. C01G 25/00 (2006.01)
CPC C01G 25/006 (2013.01) [C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A zirconia-based porous body having a total pore volume of 1.0 ml/g or more in a pore distribution based on a mercury intrusion method, wherein
a pore volume of pores having a diameter of 20 nm or more and less than 100 nm is 0.3 ml/g or less, and
a pore volume of pores having a diameter of 100 nm or more and 1000 nm or less is 0.5 ml/g or more.