US 12,441,870 B2
ZrO2 dispersion liquid
Yuki Goto, Shibukawa (JP)
Assigned to KANTO DENKA KOGYO CO., LTD., Tokyo (JP)
Appl. No. 18/718,897
Filed by KANTO DENKA KOGYO CO., LTD., Tokyo (JP)
PCT Filed Dec. 14, 2022, PCT No. PCT/JP2022/046004
§ 371(c)(1), (2) Date Jun. 12, 2024,
PCT Pub. No. WO2023/112953, PCT Pub. Date Jun. 22, 2023.
Claims priority of application No. 2021-202350 (JP), filed on Dec. 14, 2021.
Prior Publication US 2025/0051550 A1, Feb. 13, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. C08K 9/06 (2006.01); C09C 3/12 (2006.01)
CPC C08K 9/06 (2013.01) [C09C 3/12 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C08K 2201/006 (2013.01); C08K 2201/011 (2013.01)] 10 Claims
 
1. A ZrO2 dispersion liquid comprising: a Zro2 particle coated with a silane coupling agent, and a dispersion medium for the ZrO2 particle, wherein a BET specific surface area of the ZrO2 particle coated with the silane coupling agent obtained by removing the dispersion medium is 36% or more of a BET specific surface area of the Zro2 particle before coating with the silane coupling agent, and an average primary particle size of the ZrO2, particle before coating with the silane coupling agent is 3.0 nm or more and 20.0 nm or less.