Zinc oxide particle, method for producing the same, ultraviolet shielding agent, and cosmetic
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United States of America Patent
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Oct 17, 2017
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app pub date -
Dec 25, 2014
filing date -
Dec 27, 2013
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Abstract
It is one of the objects of the present disclosure to provide hexagonal plate-shaped zinc oxide particles having suitable performances derived from the shape thereof, that is, zinc oxide particles having improved ultraviolet shielding ratio at the wavelength of 400 nm or less without impairing the direct transition properties of electronic excitation thereof and having remarkably improved ultraviolet shielding ratio for UV-B radiation and UV-A radiation.
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