Title:
POLYIMIDE RESIN, POLYIMIDE VARNISH, POLYIMIDE FILM, AND TEMPORARY FIXING MATERIAL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2024/058061
Kind Code:
A1
Abstract:
A polyimide resin having a structural unit A derived from a tetracarboxylic dianhydride and a structural unit B derived from a diamine, wherein the structural unit A includes a structural unit (A1) derived from a compound represented by formula (a1), and the structural unit B includes a structural unit (B1) derived from a compound represented by formula (b1) and a structural unit (B2) derived from a compound represented by formula (b2) (Z is a diphenylfluorene structure or a hexafluoro diphenylpropane structure, and X1 and X2 each represent -O-, -C(CH3)2-, or -C(CF3)2-.).
Inventors:
ABIKO YOHEI (JP)
YASUFUKU HARUKA (JP)
YONEHAMA SHINICHI (JP)
YASUFUKU HARUKA (JP)
YONEHAMA SHINICHI (JP)
Application Number:
PCT/JP2023/032770
Publication Date:
March 21, 2024
Filing Date:
September 08, 2023
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C08G73/10; C08J5/18; C09D179/08; C09J179/08; H01L21/304
Domestic Patent References:
| WO2014103637A1 | 2014-07-03 |
Foreign References:
| CN110894294A | 2020-03-20 | |||
| JP2015093966A | 2015-05-18 | |||
| JPH11292968A | 1999-10-26 | |||
| CN101289537A | 2008-10-22 | |||
| JP2003231753A | 2003-08-19 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
Download PDF:
Previous Patent: AMMONIA TREATMENT SYSTEM, FLOATING BODY
Next Patent: IMAGE GENERATION DEVICE, IMAGE GENERATION METHOD, AND PROGRAM
Next Patent: IMAGE GENERATION DEVICE, IMAGE GENERATION METHOD, AND PROGRAM