US 12,215,203 B2
Method for producing microparticles
Ki Wan Bong, Seoul (KR); and Hyeon Ung Kim, Seoul (KR)
Assigned to Korea University Research and Business Foundation, Seoul (KR)
Appl. No. 17/442,897
Filed by Korea University Research and Business Foundation, Seoul (KR)
PCT Filed Mar. 5, 2020, PCT No. PCT/KR2020/095017
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/197365, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10-2019-0034986 (KR), filed on Mar. 27, 2019.
Prior Publication US 2022/0195129 A1, Jun. 23, 2022
Int. Cl. B29C 33/38 (2006.01); B29C 33/70 (2006.01); C08J 3/12 (2006.01)
CPC C08J 3/12 (2013.01) [B29C 33/3878 (2013.01); B29C 33/70 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for producing microparticles comprising (a) preparing a porous micromold having a plurality of recessed microcavities with a predetermined shape and size on one surface thereof and preparing a cover substrate, (b) degassing the micromold in a vacuum chamber, (c) taking the degassed micromold out of the vacuum chamber, arranging a microparticle precursor solution between the one surface of the micromold and one surface of the cover substrate, and filling the microparticle precursor solution in the microcavities, (d) polymerizing the microparticle precursor in the microparticle precursor solution to synthesize microparticles, and (e) recovering the microparticles.