ZINC OXIDE PARTICLES EACH HAVING SURFACE COATED WITH ORGANOSILICON, METHOD FOR PRODUCING SAME, COSMETIC PREPARATION, DISPERSION, HEAT DISSIPATING FILLER AND RESIN COMPOSITION
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United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Dec 1, 2022
filing date -
Dec 1, 2022
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To provide zinc oxide particles having a surface coated with organosilicon, the particles exhibiting a high dispersibility and excellent water repellency. Zinc oxide particles having a surface coated with organosilicon, the zinc oxide particles having a primary particle size of 0.1 μm or less as measured based on a transmission electron micrograph, and a median size based on a volume of 0.15 μm or less, where the median size is determined by charging the powder in isopropyl alcohol, dispersing the powder by application of ultrasonic wave with a rated output of 600 W and an oscillation amplitude of 100% generated by an ultrasonic homogenizer at a normal temperature for 30 seconds, and measuring the dispersion by a laser diffraction scattering method.
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