公开(公告)号：EP3222273A4

公开(公告)日：2018-08-01

申请号：EP15862011

申请日：2015-11-16

Applicant: NAT INSTITUTE FOR MATERIALS SCIENCE

Inventor： ZHANG SHAOLING ,  KAWAKAMI KOHSAKU ,  ARIGA KATSUHIKO

IPC: A61K9/19 ,  A61K9/127 ,  A61K47/06 ,  A61K47/08 ,  A61K47/10 ,  A61K47/18 ,  A61K47/24

CPC classification number: A61K9/1274 ,  A61K9/127 ,  A61K9/19 ,  A61K47/06 ,  A61K47/08 ,  A61K47/10 ,  A61K47/18 ,  A61K47/24 ,  F26B5/06

Abstract: A method for producing porous particles includes (1) a step of preparing a solution of an amphiphilic substance by dissolving the amphiphilic substance in a mixed solvent capable of being freeze-dried, (2) a step of producing a precipitate containing the amphiphilic substance by cooling the solution obtained in step (1) to a temperature equal to or less than a phase separation temperature of the solution, and thereafter holding the solution at the temperature, and (3) a step of producing porous particles by freeze-drying the solution containing the precipitate obtained in the step (2).