公开(公告)号：US20230220161A1

公开(公告)日：2023-07-13

申请号：US18154057

申请日：2023-01-13

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sang-Youl KIM ,  Seong-Jong KIM

IPC: C08G73/10 ,  C08J5/18

CPC classification number: C08G73/1042 ,  C08G73/1071 ,  C08G73/1032 ,  C08J5/18 ,  C08J2379/08

Abstract: The present disclosure relates to a polyimide precursor and flexible polyimide obtained by imidization of the polyimide precursor and having high transparency, high glass transition temperature and low coefficient of thermal expansion.