公开(公告)号：US12029801B2

公开(公告)日：2024-07-09

申请号：US17609531

申请日：2020-05-07

申请人： L'OREAL

发明人： Jun Sasai ,  Toshifumi Shiroya

IPC分类号： A61K8/02 ,  A61K8/25 ,  A61K8/29 ,  A61Q17/04

CPC分类号： A61K8/0245 ,  A61K8/25 ,  A61K8/29 ,  A61Q17/04 ,  A61K2800/26 ,  A61K2800/63 ,  A61K2800/651 ,  A61K2800/805

摘要： 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.