Polyamide-polyphenylene ether resin composition

A technology of resin composition and polyamide, applied in the field of resin composition, can solve problems such as difficulty in controlling fluidity, and achieve the effects of excellent retention stability, improved coating adhesion and less change in MFR

Active Publication Date: 2008-04-16
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even within this range, when sodium hypophosphite, which is a polymerization catalyst for polyamide, is present in a normal amount, it is difficult to control fluidity because the viscosity of polyamide during molding changes due to the difference in moisture content in the polymer.

Method used

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  • Polyamide-polyphenylene ether resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～12、 comparative example 1～3

[0266] Using the upstream side supply port in the first barrel from the upstream side of the extruder and the downstream side supply port in the sixth barrel, L / D (extruder barrel length / extruder barrel) Diameter) = 44 (barrel number: 11) twin-screw extruder [ZSK-40: manufactured by Kopelion Co., Ltd. (Germany)], from the supply port on the upstream side to the front of the supply port on the downstream side was set at 320 ° C, from The downstream side supply port to the die is set at 280°C, the screw rotation speed is 300rpm, and the discharge rate is 60kg / hour. According to the ratio described in Table 1, PPE, SEBS, GPPS, and MAH are supplied from the upstream side supply port for melt kneading After that, PA and NaH are supplied from the downstream supply port 2 PO 2 , making resin composition particles. After adjusting the water content of the obtained resin composition, MFR and silver streaks were evaluated. In addition, physical property values ​​are described in Tabl...

Embodiment 13～16、 comparative example 4

[0268] L / D( The length of the barrel of the extruder / the diameter of the barrel of the extruder) = 44 (number of barrels: 11) of the twin-screw extruder [ZSK-40: manufactured by Kopelion (Germany)], will be supplied from the upstream side The mouth to the front of the first supply port on the downstream side is set at 320°C, the distance from the first supply port on the downstream side to the die is set at 280°C, the screw rotation speed is 300rpm, and the discharge rate is 60kg / hour, and the supply is supplied from the upstream side supply port. After melt-kneading PPE, SEBS, and MAH, PA and PA / CB-MB are supplied from the first supply port on the downstream side. Furthermore, GF is supplied from the downstream side 2nd supply port. According to the ratio described in Table 2, resin composition pellets were prepared. After adjusting the water content of the obtained resin composition, MFR and silver streak evaluations were performed. In addition, coating adhesiveness after...

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PUM

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Abstract

A resin composition characterized by containing polyamide (A), polyphenylene ether (B), elastomer (C) and phosphorus compound (D) selected from among phosphoric acids, phosphorous acids, hypophosphorous acids, metal phosphates, metal phosphites, metal hypophosphites and phosphoric esters wherein per 100 mass% of the sum of components (A) to (D), phosphorus element is contained in an amount of 1 to 35 ppm. Further, there is provided a molding of the resin composition. Application can be found in a wide spectrum of fields, such as electrical / electronic parts, OA parts, vehicle parts and mechanical parts. In particular, suitable application can be found in exterior parts of automobile, etc. wherein large moldings are required.

Description

technical field [0001] The present invention relates to a resin composition containing polyamide and polyphenylene ether, a resin composition with little change in fluidity during molding even if the moisture content contained in the resin composition is changed in a wide range, and a resin composition obtained from the resin composition. molding body. Furthermore, the present invention relates to a resin composition in which retention stability during molding and thermal stability of a molded article, particularly coating adhesiveness after heat exposure are remarkably improved, and a molded article formed from the resin composition. Background technique [0002] Polyphenylene ether has excellent mechanical properties, electrical properties, and heat resistance, and is also excellent in dimensional stability, so it is used in a wide range of applications. Polyphenylene ether itself has poor molding processability, and in order to improve this, a technique of blending polya...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08K13/02C08L71/12C08K3/18C08K3/32C08K5/51
CPCC08L77/00C08K5/51C08L77/02C08L71/12C08L77/06C08L2666/20C08L2666/02C08L2666/22
Inventor 寺田和范野田和弥
Owner ASAHI KASEI KK
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