Title:
POLYIMIDE RESIN, POLYIMIDE VARNISH AND POLYIMIDE FILM
Document Type and Number:
WIPO Patent Application WO/2019/065522
Kind Code:
A1
Abstract:
This polyimide resin contains constituent units A derived from a tetracarboxylic acid dianhydride and constituent units B derived from a diamine, wherein: constituent units A include constituent units (A-1) derived from a compound represented by formula (a-1), constituent units B include constituent units (B-1) derived from a compound represented by formula (b-1) and constituent units (B-2) derived from a compound represented by formula (b-2); the proportion of constituent units (A-1) is 50 mol% or more of constituent units A; the proportion of constituent units (B-1) is 45-85 mol% of constituent units B; and the proportion of constituent units (B-2) is 15-55 mol% of constituent units B. (In formula (b-2), the R groups each independently represent a hydrogen atom, a fluorine atom or a methyl group.)
Inventors:
ABIKO YOHEI (JP)
SATO SAEKO (JP)
DAITO AOI (JP)
SUENAGA SHUYA (JP)
SATO SAEKO (JP)
DAITO AOI (JP)
SUENAGA SHUYA (JP)
Application Number:
PCT/JP2018/035126
Publication Date:
April 04, 2019
Filing Date:
September 21, 2018
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C08G73/10; C08K5/00; C08L79/08
Domestic Patent References:
| WO2013179727A1 | 2013-12-05 |
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
Download PDF:
Previous Patent: POLYIMIDE, POLYIMIDE VARNISH, AND POLYIMIDE FILM
Next Patent: POLYIMIDE RESIN, POLYIMIDE VARNISH AND POLYIMIDE FILM
Next Patent: POLYIMIDE RESIN, POLYIMIDE VARNISH AND POLYIMIDE FILM