Title:
POLYIMIDE RESIN, POLYIMIDE VARNISH, AND POLYIMIDE FILM
Document Type and Number:
WIPO Patent Application WO/2022/091813
Kind Code:
A1
Abstract:
A polyimide resin containing a constituent unit A derived from a tetracarboxylic acid dianhydride and a constituent unit B derived from a diamine, wherein the constituent unit A includes a constituent unit (A1) derived from a tetracarboxylic acid dianhydride having a two-norbornane skeleton in each molecule, the constituent unit B includes a constituent unit (B1) derived from a compound represented by formula (b1), and the proportion of the constituent unit (B1) in the constituent unit B is 35-95 mol%.
Inventors:
ABIKO YOHEI (JP)
ISHII KENTARO (JP)
MURAYA TAKAHIRO (JP)
ISHII KENTARO (JP)
MURAYA TAKAHIRO (JP)
Application Number:
PCT/JP2021/038172
Publication Date:
May 05, 2022
Filing Date:
October 15, 2021
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C08G73/10; C08J5/18
Domestic Patent References:
| WO2015053312A1 | 2015-04-16 |
Foreign References:
| JP2019070813A | 2019-05-09 | |||
| JPS63241030A | 1988-10-06 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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