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Curable resin composition comprising phthalonitrile oligomers, and prepolymer thereof

A phthalonitrile, curing resin technology, used in applications, inks, household appliances, etc., can solve the problems of low viscosity, mold leakage, etc., and achieve the effect of excellent wettability and excellent processability

Active Publication Date: 2020-07-31
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Meanwhile, since the phthalonitrile-based resin has a very low viscosity at a temperature equal to or higher than the melting point, a problem of leakage from a mold arises during processing with a mold such as injection and extrusion

Method used

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  • Curable resin composition comprising phthalonitrile oligomers, and prepolymer thereof
  • Curable resin composition comprising phthalonitrile oligomers, and prepolymer thereof
  • Curable resin composition comprising phthalonitrile oligomers, and prepolymer thereof

Examples

Experimental program
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Effect test

preparation example 1

[0237] Preparation example 1. Synthesis of phthalonitrile oligomer (PN-1)

[0238] A phthalonitrile oligomer represented by the following chemical formula PN-1 was synthesized as follows.

[0239]

[0240] 41.1 g of an oligomer represented by chemical formula KA-1 (weight average molecular weight 1,360 g / mol) and 165.0 g of DMF (dimethylformamide) were introduced into a 3-necked round bottom flask, and the mixture was stirred at room temperature to dissolve . 51.9 g of 4-nitrophthalonitrile was added thereto, 70.0 g of DMF was added, and the mixture was stirred to dissolve. Subsequently, 49.8 g of potassium carbonate and 30.0 g of DMF were introduced together, and the temperature was raised to 85° C. while stirring. After allowing the reaction to proceed for about 5 hours, the reaction solution was cooled to room temperature. The cooled reaction solution was poured into 0.2N aqueous hydrochloric acid solution for neutralization and precipitation. After filtering, it w...

preparation example 2

[0242] Preparation example 2. Synthesis of phthalonitrile oligomer (PN-2)

[0243] A phthalonitrile oligomer represented by the following chemical formula PN-2 was synthesized as follows.

[0244]

[0245] 48.0 g of an oligomer represented by chemical formula NE-1 (weight average molecular weight 1,600 g / mol) and 165.0 g of DMF (dimethylformamide) were introduced into a 3-necked round bottom flask, and the mixture was stirred at room temperature to dissolve . 48.5 g of 4-nitrophthalonitrile was added thereto, 70.0 g of DMF was added, and the mixture was stirred to dissolve. Subsequently, 46.4 g of potassium carbonate and 30.0 g of DMF were introduced together, and the temperature was raised to 85° C. while stirring. After allowing the reaction to proceed for about 5 hours, the reaction solution was cooled to room temperature. The cooled reaction solution was poured into 0.2N aqueous hydrochloric acid solution for neutralization and precipitation. After filtering, it w...

preparation example 3

[0247] Preparation Example 3: Synthesis of phthalonitrile oligomer (PN-3)

[0248] The oligomer (PN-3) represented by the chemical formula PN-2 having a weight-average molecular weight of 2,400 g / mol was obtained in a yield of 96% by weight by the same method as Preparation Example 2 except that 1,700 g The oligomer represented by the chemical formula NE-1 of the weight average molecular weight per mol was substituted for the oligomer represented by the chemical formula NE-1 (weight average molecular weight 1,600 g / mol).

[0249]

[0250] image 3 shows the phthalonitrile oligomer PN-3 1 H-NMR analysis results.

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Abstract

The present invention relates to a curable resin composition comprising phthalonitrile oligomers, and a prepolymer thereof. According to the present invention, provided is a curable resin compositionhaving a melt viscosity that is controllable in a wide range so as to be applicable to more various fields.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2018-0114412 and Korean Patent Application No. 10-2018-0114413 filed with the Korean Intellectual Property Office on September 21, 2018, the disclosures of which are incorporated herein by reference in their entirety. [0003] The present invention relates to curable resin compositions comprising phthalonitrile oligomers and prepolymers thereof. Background technique [0004] Phthalonitrile-based resins are known as thermosetting resins having excellent heat resistance and flame retardancy. A resin composition comprising a phthalonitrile-based resin and additives such as glass fibers, carbon fibers, etc. can be used as durable goods for airplanes, ships, automobiles, and the like. [0005] The phthalonitrile-based resin is generally formed by polymerization and high-temperature curing of a phthalonitrile compound having two or mor...

Claims

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Application Information

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IPC IPC(8): C09D11/38C08G61/12C08L65/00C08K5/34C08K5/00
CPCC08K5/00C09D11/38C08K5/34C08G61/12C08L65/00C09D11/102C09D11/03B33Y70/00C08G61/02C08G2261/1424C08G2261/143C08G2261/312C08G2261/63C08K5/0025C08K5/3417
Inventor 李承姬金荣旲高恩皓金相佑
Owner LG CHEM LTD
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