HEXAGONAL-CYLINDER-SHAPED ZINC OXIDE PARTICLES, PRODUCTION METHOD FOR SAME, AND COSMETIC MATERIAL, HEAT-DISSIPATING FILLER, HEAT-DISSIPATING RESIN COMPOSITION, HEAT-DISSIPATING GREASE, AND HEAT-DISSIPATING COATING COMPOSITION HAVING SAME BLENDED THER

摘要

[Problem] To obtain hexagonal-cylinder-shaped zinc oxide particles having a specific particle diameter and a specific aspect ratio, and capable of being suitably used as a cosmetic material or a heat-dissipating material, as a result of high ultraviolet-ray-shielding properties and transparency. [Solution] Hexagonal-cylinder-shaped zinc oxide particles having a primary particle diameter of at least 0.1 µm but less than 0.5 µm and an aspect ratio of less than 2.5.