Modified metal oxide particle material and method for producing same

Abstract

An object is to provide a modified metal oxide particle material that maintains high dispersibility even when the amount of modifying material is small. The material includes (i) a metal oxide particle material having, on its surface, a functional group other than a phenyl group; and (ii) a modifying material composed of a silicon-containing compound having a phenyl group, adhered to the surface of the metal oxide particle material. The value C/H, calculated from the carbon content C (mass %) and the specific surface area H (m{circumflex over ( )}2 per g), decreases by ≥0.001, ≥0.01, or ≥0.03 and <0.1 after washing with methyl ethyl ketone. The grind gauge is ≤20 μm. The post-wash C/H is ≤0.07.

Dependencies are inferred from the claim text.