公开(公告)号：US09676739B2

公开(公告)日：2017-06-13

申请号：US14890658

申请日：2014-05-16

Applicant: KOLON INDUSTRIES, INC.

Inventor： Hyo Jun Park ,  Hak Gee Jung ,  Chang Sik Ha ,  Prdip Kumar Tapaswi ,  Young Sik Jeong

IPC: C07D307/60 ,  C11D3/33 ,  C08G73/02 ,  C08G73/10 ,  C08L79/08 ,  C11D3/37

CPC classification number: C07D307/60 ,  C08G73/0233 ,  C08G73/0273 ,  C08G73/1007 ,  C08G73/1028 ,  C08G73/1075 ,  C08L79/08 ,  C11D3/33 ,  C11D3/3719

Abstract: The present invention relates to a novel acid dianhydride, a method for preparing the same, and a polyimide prepared therefrom. More specifically, the acid dianhydride according to the present invention is useful as a colorless transparent polyimide unit exhibiting excellent thermal stability and a low dielectric ratio, and the polyimide of the present invention has excellent solubility to an organic solvent compared with the conventional polyimide.