	US 12,215,033 B2
	Silica particles comprising nitrogen element-containing compound containing molybdenum element
Yuka Zenitani, Kanagawa (JP); Sakae Takeuchi, Kanagawa (JP); Koji Sasaki, Kanagawa (JP); Yoshifumi Eri, Kanagawa (JP); and Mai Mochida, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Jan. 26, 2022, as Appl. No. 17/584,390.
Claims priority of application No. 2021-052444 (JP), filed on Mar. 25, 2021; and application No. 2021-156197 (JP), filed on Sep. 24, 2021.
Prior Publication US 2022/0315432 A1, Oct. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C01B 33/18 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); C01B 33/159 (2006.01)

CPC C01B 33/18 (2013.01) [C01B 33/159 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01P 2004/03 (2013.01); C01P 2004/51 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C01P 2004/80 (2013.01); C01P 2006/14 (2013.01); C01P 2006/17 (2013.01); C01P 2006/80 (2013.01); C01P 2006/90 (2013.01)]

10 Claims

1. Silica particles comprising:

silica base particles;

a reaction product of a trifunctional silane coupling agent, the reaction product covers at least a part of a surface of the silica base particles; and

a nitrogen element-containing compound containing a molybdenum element,

wherein an amount of the reaction product is 5.5% by mass or more and 30% by mass or less with respect to an amount of the silica particles, and

a ratio (Mo/Si) of Net intensity of the molybdenum element to Net intensity of a silicon element measured by X-ray fluorescence analysis is 0.035 or more and 0.35 or less.