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Polyimide resin

A technology of polyimide resin and amine compound, which is applied in the field of polyimide resin, can solve the problems of high glass transition temperature and achieve the effect of high colorless transparency and high heat resistance

Active Publication Date: 2018-12-21
MITSUBISHI GAS CHEM CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is known that polyimide resins have a high glass transition temperature, but the glass transition temperatures of polyimide resins known so far are as high as 409°C (Example 4 of Patent Document 1), 410°C ( Reference Example 7 of Patent Document 2)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Into a 300 mL five-necked round-bottomed flask equipped with a stainless steel half-moon stirring blade, a nitrogen gas introduction tube, a condenser tube, a Dean-Stark trap, a thermometer, and a glass end cap, was charged with 9,9-bis(4-aminophenyl)fluorene (manufactured by JFE Chemical Corporation) 32.182 g (0.092 mol), γ-butyrolactone (manufactured by Mitsubishi Chemical Corporation) as an organic solvent 51.71 g, as imidization 0.467 g of triethylamine (manufactured by Kanto Chemical Co., Ltd.) as a catalyst was stirred at a system internal temperature of 70° C. under a nitrogen atmosphere at a rotation speed of 200 rpm to obtain a solution. 20.704 g (0.092 mol) of 1,2,4,5-cyclohexanetetracarboxylic dianhydride (manufactured by Mitsubishi Gas Chemical Co., Ltd.) as a tetracarboxylic dianhydride component, and N,N - After 12.93 g of dimethylacetamide (manufactured by Mitsubishi Gas Chemical Co., Ltd.), it was heated in a mantle heater, and the temperature in the rea...

Embodiment 2

[0076]Into a 300 mL five-necked round-bottomed flask equipped with a stainless steel half-moon stirring blade, a nitrogen gas introduction tube, a condenser tube, a Dean-Stark trap, a thermometer, and a glass end cap, was charged with 9,9-bis(4-aminophenyl)fluorene (manufactured by JFE Chemical Corporation) 26.444 g (0.076 mol) and 2,2'-dimethylbenzidine (manufactured by Wakayama Seika Kogyo Co., Ltd.) 4.028 g (0.019 mol) ), 50.68 g of γ-butyrolactone (manufactured by Mitsubishi Chemical Co., Ltd.) as an organic solvent, and 0.480 g of triethylamine (manufactured by Kanto Chemical Co., Ltd.) as an imidization catalyst. Stir at 200 rpm to obtain a solution. 21.266 g (0.095 mol) of 1,2,4,5-cyclohexanetetracarboxylic dianhydride (manufactured by Mitsubishi Gas Chemical Co., Ltd.) as a tetracarboxylic dianhydride component, and γ-butylene as an organic solvent were simultaneously added thereto. After 12.67 g of lactone (manufactured by Mitsubishi Chemical Corporation), it was hea...

Embodiment 3

[0079] Into a 300 mL five-necked round-bottomed flask equipped with a stainless steel half-moon stirring blade, a nitrogen gas introduction tube, a condenser tube, a Dean-Stark trap, a thermometer, and a glass end cap, was charged with 9,9-bis(4-aminophenyl)fluorene (manufactured by JFE Chemical Corporation) 34.931g (0.100mol), γ-butyrolactone (manufactured by Mitsubishi Chemical Corporation) as an organic solvent 55.96g, as imidization 0.507 g of triethylamine (manufactured by Kanto Chemical Co., Ltd.) as a catalyst was stirred at a system internal temperature of 70° C. under a nitrogen atmosphere at a rotation speed of 200 rpm to obtain a solution. 11.236 g (0.050 mol) of 1,2,4,5-cyclohexanetetracarboxylic dianhydride (manufactured by Mitsubishi Gas Chemical Co., Ltd.) and pyromellitic anhydride (Daicel Corporation) were simultaneously added thereto as tetracarboxylic dianhydride components. ) 10.933g (0.050 mole) and 13.99g of γ-butyrolactone (manufactured by Mitsubishi Che...

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Abstract

Provided is a polyimide resin comprising a constituent unit A derived from a tetracarboxylic acid dianhydride, and a constituent unit B derived from a diamine compound. The constituent unit A includesat least one of a constituent unit (A-1) derived from a compound represented by formula (a-1) indicated in claim 1, a constituent unit (A-2) derived from a compound represented by formula (a-2) indicated in claim 1, and a constituent unit (A-3) derived from a compound represented by formula (a-3) indicated in claim 1. The constituent unit B includes a constituent unit (B-1) derived from a compound represented by formula (b-1) indicated in claim 1. The ratio of the constituent unit (B-1) in the constituent unit B is 60 mol% or more. The glass transition temperature of the polyimide resin is greater than 410 DEG C.

Description

technical field [0001] The present invention relates to polyimide resins. Background technique [0002] In liquid crystal displays and organic electroluminescent displays, thin film transistors (TFTs) are used as pixel conversion elements. The electron mobility of polysilicon (polysilicon) with excellent crystallinity is 0.01m 2 / Vs is about 2 digits higher than that of amorphous silicon, so TFT characteristics are greatly improved. If a high-mobility polysilicon film can be formed on a plastic flexible substrate, the drive circuit and control circuit can be integrated, and a high-value-added "slice computer" with various functions on the display panel can be realized. [0003] One of methods for producing a polysilicon film is an excimer laser annealing (ELA) method. In the process using this method, it is exposed to a high-temperature state of 450° C. in the dehydrogenation treatment of amorphous silicon. Therefore, if it is performed on a plastic flexible substrate, v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/10
CPCC08G73/1042C08G73/1078C08G73/1007C08J5/18C08J2379/08C08G73/1021C08G73/1032
Inventor 安孙子洋平末永修也关口慎司
Owner MITSUBISHI GAS CHEM CO INC
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