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.

公开(公告)号：US20210386634A1

公开(公告)日：2021-12-16

申请号：US17342278

申请日：2021-06-08

Applicant: AMOREPACIFIC CORPORATION

Inventor： Hyunsuk LEE ,  Jaewon YOU ,  Hye Won NA ,  Bokyung JUNG ,  Chang Jo JUNG ,  Nari CHA ,  Sangkyun CHAE ,  Sohyun HONG

IPC: A61K8/29 ,  A61K8/04 ,  A61K8/85 ,  A61Q19/10

Abstract: The present disclosure provides porous composite powder which includes biodegradable polymer particles with a porous structure having positive charges dispersed uniformly thereon and further includes inorganic particles. The porous composite powder adsorbs and removes fine particulate matter remaining in the skin and skin pores effectively through ionic bonding, while maintaining a spherical shape. The present disclosure also provides a method for preparing porous composite powder for adsorption of fine dust including particles forming a composite homogeneously, while maintaining a spherical shape, through a single process.

公开(公告)号：US20200323762A1

公开(公告)日：2020-10-15

申请号：US16303432

申请日：2016-05-24

Applicant: AMOREPACIFIC CORPORATION

Inventor： Hyunsuk LEE ,  Yan LI ,  Yongjin KIM ,  Johnhwan LEE ,  Kyungho CHOI ,  Jinwoong KIM ,  Jaehong CHO ,  Jeong Won KIM ,  Youngbok LEE ,  Bum Jun PARK ,  Jangwoo CHO

IPC: A61K8/81 ,  A61K8/06 ,  A61K8/37

Abstract: The present invention relates to self-assembly type Janus microparticles and a preparation method therefor. The present invention can be used for preparing Janus microparticles in which a degree of phase separation is precisely controlled, for realizing stable interfacial orientation by selectively coating only one side of particles with a metal oxide, and for mass-producing Janus microparticles which have a degree of phase separation precisely controlled and exhibit extreme amphiphilicity in an anisotropic structure. Therefore, the Janus microparticles and the preparation method therefor according to the present invention can be widely used in various fields, thus contributing to industrial development.