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Particulate metal oxide particles having a metal oxide core and a coating layer containing an inorganic substance, a silane coupling agent and / or a hydrophobizing agent
Particulate metal oxide particles having a metal oxide core and a coating layer containing an inorganic substance, a silane coupling agent and / or a hydrophobizing agent
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机译:具有金属氧化物核和包含无机物质,硅烷偶联剂和/或疏水剂的涂层的颗粒状金属氧化物颗粒
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摘要
A particulate metal oxide has a metal oxide core and a coating layer containing an inorganic material and (i) a quaternary silane coupling agent, and/or (ii) a silane coupling agent and a hydrophobizing agent. Preferred materials are titanium dioxide core particles, an amino organosilane coupling agent and a fatty acid hydrophobizing agent. The particulate metal oxide is suitable for use in forming a dispersion, and the particles and dispersion can be used in an end-use sunscreen composition which is transparent, exhibits effective UV absorption properties, reduced photoactivity, and/or improved skin feel.
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