公开(公告)号：US20210244630A1

公开(公告)日：2021-08-12

申请号：US17049794

申请日：2019-04-26

Applicant: AMOREPACIFIC CORPORATION

Inventor： Yan LI ,  Soojin LEE ,  Yongjin KIM ,  Gi-Ra YI ,  Yi-Rang LIM ,  Seung-hyun KIM

IPC: A61K8/02 ,  A61K8/06 ,  A61K8/25 ,  A61Q17/04

Abstract: The present specification describes a method for manufacturing porous inorganic particles and a light-reflecting composition comprising porous inorganic particles. According to an embodiment of the present disclosure it is possible to provide a method for manufacturing porous inorganic particles capable of selective transmission or scattering of light having a specific wavelength range by controlling pore size and shell thickness.

公开(公告)号：US20210155487A1

公开(公告)日：2021-05-27

申请号：US16618274

申请日：2018-05-30

Applicant: AMOREPACIFIC CORPORATION

Inventor： Yan LI ,  Hyunsuk LEE ,  Jaewon YOO ,  Yongjin KIM ,  Gi-Ra YI ,  Yi-Rang LIM ,  Seung-hyun KIM

IPC: C01B33/18

Abstract: A method for preparing porous inorganic particles is disclosed. The method includes the steps of: (a) preparing an emulsion comprising an inorganic precursor and a polar solvent; (b) adding an organic solvent to the emulsion of step (a) to swell emulsion particles; (c) mixing the swollen emulsion of step (b) with polymer particles having a positive charge on the surface thereof; (d) adding a surfactant to the mixture of step (c) and removing the organic solvent; (e) adding an initiator to the result of step (d) to polymerize the same; and (f) firing the result of step (e) to remove the polymer particles so as to form macropores.