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公开(公告)号：US20220211588A1
公开(公告)日：2022-07-07
申请号：US17609531
申请日：2020-05-07
Applicant: L'OREAL
Inventor： Jun SASAI , Toshifumi SHIROYA
Abstract: The present invention relates to a multilayer UV filter particle, comprising: an odd number of alternating layers of high and low refractive index materials, wherein each layer has a refractive index that differs from that of adjacent layers by at least 0.2, the total number of layers is at least 9, and the particle does not contain a substrate. The particle according to the present invention can have a good UV filtering effect.
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