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Polyphenylene ether and resin composition

A technology of resin composition and polyphenylene ether, applied in the field of polyphenylene ether and resin composition, can solve the problem that polyphenylene ether resin thin-walled molding fluidity and heat aging properties are not necessarily sufficient.

Active Publication Date: 2020-10-30
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the thin-wall molding fluidity and heat aging resistance characteristics of polyphenylene ether resin itself are not always sufficient

Method used

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  • Polyphenylene ether and resin composition
  • Polyphenylene ether and resin composition
  • Polyphenylene ether and resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0179] Hereinafter, the present embodiment will be described more concretely by way of examples and comparative examples, but the present embodiment is not limited to these examples. The measurement methods and raw materials for the physical properties used in Examples and Comparative Examples are as follows.

[0180] [Measurement method of physical properties]

[0181] 1. Deflection temperature under load (DTUL)

[0182] The obtained pellets of the resin composition were dried in a 90° C. hot air dryer for 3 hours. An injection molding machine (manufactured by Toshiba Machine Co., Ltd., IS-80EPN) equipped with an ISO test piece mold was used, and the cylinder temperature was set at 330°C, the mold temperature at 120°C, the injection pressure at 50MPa (gauge pressure), and the injection speed at 200mm / sec. Extrusion time / cooling time=20 sec / 20 sec, and the dried resin composition was molded into a dumbbell-shaped molded piece of ISO3167 multipurpose test piece A type. Using...

Embodiment 1～16、 comparative example 2～9

[0376] Melt-kneading was carried out by the same method as in Comparative Example 1, and the resin composition shown in Table 1 was obtained. The physical properties of the obtained resin composition are listed in Table 1.

[0377]

[0378] As shown in Table 1, it can be seen from Examples 1 to 16 that polyphenylene ethers and resin compositions excellent in heat aging resistance properties were obtained.

[0379] In addition, it can be seen that in Examples 1, 2, 3, 7, 8, and 11 containing (A) polyphenylene ether obtained by using 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide , 12, 13, and Example 5 including (A) polyphenylene ether obtained using diphenylphosphine oxide, the fluidity during melt-kneading of the resin composition can be improved.

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Abstract

The present invention provides a polyphenylene ether resin composition excellent in heat aging resistance and fluidity. The polyphenylene ether contains one or more structural units selected from Chemical Formula (1), Chemical Formula (2), and Chemical Formula (3).

Description

technical field [0001] The present invention relates to a polyphenylene ether and a resin composition excellent in heat aging resistance. Background technique [0002] Polyphenylene ether resin has excellent mechanical properties, electrical properties, acid / alkali resistance, and heat resistance; at the same time, it has many characteristics such as low specific gravity, low water absorption, and good dimensional stability. Therefore, it is widely used in home appliances and OA equipment , business machines, information equipment and automobiles, etc. In recent years, studies on polyphenylene ether resin compositions have been conducted for light-reflecting molded products used in projectors and various lighting fixtures, and for thin automobile parts. In addition, parts used in such applications require thin-wall molding fluidity, and since they may be exposed to high temperatures for a long time, they generally require a certain degree of long-term thermal stability unde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/38C08L25/04C08L71/12
CPCC08L71/126C08K5/005C08G65/38C08L25/04C08L71/12C08G65/485
Inventor 织毛千裕山口徹山本美穗子三井昭
Owner ASAHI KASEI KK