| 摘要 |
PROBLEM TO BE SOLVED: To provide core-shell type metal oxide fine particles in which a secondary particle formed by spherically aggregating primary particles of the metal oxide is a core part and a layer of a polymer serving as a shell part exists on the surface of the secondary particle, and in which the shell part comprises the polymer having a crosslinked structure, a dispersion containing the core-shell type metal oxide fine particles, a method for producing those, and application thereof. SOLUTION: The core-shell type metal oxide fine particles have an average particle diameter of 30-200 nm, wherein the coefficient of variation of the fine particles is≤0.25, the shape of the secondary particle as the core part is spherical, the polymer adheres to the surface of the secondary particle, and the shell part comprises the polymer having the crosslinked structure. There are also provided the dispersion of the metal oxide fine particles, dry powder of the metal oxide fine particle dispersion, the method for producing the core-shell type metal oxide fine particles, the metal oxide fine particle powder or metal oxide fine particle dispersion, and the application thereof. COPYRIGHT: (C)2009,JPO&INPIT
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