POLYIMIDE RESIN, POLYIMIDE VARNISH, AND POLYIMIDE FILM

Title:

POLYIMIDE RESIN, POLYIMIDE VARNISH, AND POLYIMIDE FILM

Document Type and Number:

WIPO Patent Application WO/2021/230199

Kind Code:

A1

Abstract:

A polyimide resin comprising constituent units A, which are derived from tetracarboxylic dianhydrides, and constituent unit B, which is derived from a diamine, wherein the constituent units A comprise constituent unit (A1), which is derived from 2,2',3,3',5,5'-hexamethyl[1,1'-biphenyl]-4,4'-diyl bis(1,3-dioxo-1,3-dihydro-2-benzofuran-5-carboxylate) and constituent unit (A2), which is derived from 1,2,4,5-cyclohexanetetracarboxlic dianhydride.

More Like This:

JPWO2013161984	Diamine, polymer, liquid crystal alignment agent, liquid crystal alignment film and liquid crystal display element
JP3490010	BIS(TRIALKYLTRIMELLITIC ANHYDRIDE) DERIVATIVE AND POLYESERAMIDE USED FOR OPTICAL COMMUNICATION FORMED THEREFROM
WO/1993/004394	USE OF ADDITIVES IN ORIENTATION FILMS FOR FLC DISPLAYS TO REDUCE OPTICAL HYSTERESIS

Inventors:

WAKITA NATSUMI (JP)
KOYAMA MASAYA (JP)
ABIKO YOHEI (JP)
HIROSE SHIGEYUKI (JP)

Application Number:

PCT/JP2021/017695

Publication Date:

November 18, 2021

Filing Date:

May 10, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MITSUBISHI GAS CHEMICAL CO (JP)

International Classes:

C08G73/16; C08J5/18

Domestic Patent References:

WO2014046180A1	2014-03-27
WO2019211972A1	2019-11-07

Foreign References:

JP2009286706A

2009-12-10

Attorney, Agent or Firm:

OHTANI PATENT OFFICE (JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: COCRYSTAL OF DIHYDROQUINOLINONE COMPOUND

Next Patent: POLYOLEFIN-BASED RESIN PELLET AND METHOD FOR PRODUCING SAME