The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2022
Filed:
May. 30, 2018
Amorepacific Corporation, Seoul, KR;
Yan Li, Yongin-si, KR;
Hyunsuk Lee, Yongin-si, KR;
Jaewon Yoo, Yongin-si, KR;
Yongjin Kim, Yongin-si, KR;
Gi-Ra Yi, Suwon-si, KR;
Yi-Rang Lim, Suwon-si, KR;
Seung-hyun Kim, Daejeon, KR;
Amorepacific Cornoration, Seoul, KR;
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.