Title:
POLYIMIDE RESIN, POLYIMIDE VARNISH AND POLYIMIDE FILM
Document Type and Number:
WIPO Patent Application WO/2019/116940
Kind Code:
A1
Abstract:
A polyimide resin which has a constituent unit A that is derived from a tetracarboxylic acid dianhydride and a constituent unit B that is derived from a diamine, and wherein: the constituent unit A contains a constituent unit (A-1) that is derived from a compound represented by formula (a-1), a constituent unit (A-2) that is derived from a compound represented by formula (a-2) and a constituent unit (A-3) that is derived from a compound represented by formula (a-3); and the constituent unit B contains a constituent unit (B-1) that is derived from a compound represented by formula (b-1). A polyimide varnish and a polyimide film, each of which contains this polyimide resin.
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Inventors:
ABIKO YOHEI (JP)
SEKIGUCHI SHINJI (JP)
TAKADA TAKAFUMI (JP)
SEKIGUCHI SHINJI (JP)
TAKADA TAKAFUMI (JP)
Application Number:
PCT/JP2018/044368
Publication Date:
June 20, 2019
Filing Date:
December 03, 2018
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C08G73/10; C08J5/18
Domestic Patent References:
| WO2017191822A1 | 2017-11-09 | |||
| WO2015002273A1 | 2015-01-08 | |||
| WO2015122032A1 | 2015-08-20 | |||
| WO2011099518A1 | 2011-08-18 | |||
| WO2018066522A1 | 2018-04-12 |
Foreign References:
| JP2016204568A | 2016-12-08 | |||
| JP2018172669A | 2018-11-08 |
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
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