Abstract: Zinc oxide powder of the present invention contains zinc oxide particles, in which primary particles of the zinc oxide particles have a minor axis of 35 nm or more and 350 nm or less and have a Heywood diameter of 35 nm or more and 400 nm or less, and a coefficient of variation of a number distribution of the Heywood diameters of the primary particles of the zinc oxide powder is 50% or less.

Abstract: In a zinc oxide powder of the present invention, a content of a water-soluble substance is 0.30% by mass or less, and a mass ratio between an alkali metal and an alkaline earth metal which are included in the water-soluble substance is in a range of 1:2 to 10:1.

Abstract: In a zinc oxide powder of the present invention, a content of a water-soluble substance is 0.30% by mass or less, and a mass ratio between an alkali metal and an alkaline earth metal which are included in the water-soluble substance is in a range of 1:2 to 10:1.

Abstract: Zinc oxide powder of the present invention contains zinc oxide particles, in which primary particles of the zinc oxide particles have a minor axis of 35 nm or more and 350 nm or less and have a Heywood diameter of 35 nm or more and 400 nm or less, and a coefficient of variation of a number distribution of the Heywood diameters of the primary particles of the zinc oxide powder is 50% or less.

Abstract: The present invention relates to a method for manufacturing metallic oxide particle-containing resin powder including: dispersing metallic oxide particles having a specific average particle diameter and a UV shielding function in a (meth)acrylic-based resin monomer to produce a (meth)acrylic-based resin monomer dispersion liquid; suspending or emulsifying the (meth)acrylic-based resin monomer dispersion liquid; and, adding a polymerization initiator to cause suspension polymerization or emulsification polymerization, thereby generating metallic oxide particle-containing resin powder, and provides metallic oxide particles which are dispersed in the resin powder without being exposed on the surface of the resin powder, the powder includes fine particles, the UV absorbing performance, and the transparency with respect to visible light rays are improved.

Abstract: The present invention relates to metallic oxide particle-containing resin powder of in which metallic oxide particles having a UV shielding function, in which the average particle diameter of the resin powder is 0.1 ?m to 1 ?m, are contained in a (meth)acrylic-based resin. The metallic oxide particles are particles that include one or two or more selected from the group of zinc oxide, titanium oxide, cerium oxide, and iron oxide, and have an average particle diameter of 0.003 ?m to 0.1 ?m. The content of the metallic oxide particles in the resin powder is 1% by mass to 80% by mass, and the metallic oxide particles are dispersed in the resin powder without being exposed on the surface of the resin powder. The powder includes fine particles, and the UV absorbing performance and the transparency with respect to visible light rays are improved.