公开(公告)号：US20240110010A1

公开(公告)日：2024-04-04

申请号：US18253979

申请日：2020-12-28

申请人： PI ADVANCED MATERIALS CO., LTD.

发明人： Ho Sung LEE ,  Ik Sang LEE ,  Jin Seok JEON

IPC分类号： C08G73/10

CPC分类号： C08G73/1032 ,  C08G73/1071 ,  B29K2105/251

摘要： The present invention relates to a method for producing a polyimide powder, particularly to a method for producing a polyimide powder, which includes a) preparing a dispersion by dispersing a dianhydride and a diamine in distilled water; and b) introducing the dispersion of step a) into a reactor and conducting the reaction at a stirring speed of 300 rpm or more under temperature and pressure conditions. In the present invention, it is possible to improve physical properties and control the particle size and dispersibility without additional processes by using water-based polymerization and controlling the stirring speed in the production process.