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Resin composition, molded article, and electrical wire

A resin composition, polyphenylene ether resin technology, applied in synthetic resin layered products, plastic/resin/wax insulators, circuits, etc., can solve the problems of low water absorption, poor impact resistance, etc., and achieve the effect of inhibiting whitening

Pending Publication Date: 2020-04-10
MITSUBISHI ENG PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyphenylene ether resin is known as an engineering plastic excellent in transmittance, mechanical properties, heat resistance, dimensional stability, low water absorption, and electrical properties, but has poor impact resistance

Method used

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  • Resin composition, molded article, and electrical wire
  • Resin composition, molded article, and electrical wire
  • Resin composition, molded article, and electrical wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4、 comparative example 1～5

[0127] The components were mixed according to the ratio (mass basis) shown in the following Table 1, and melt kneaded at a cylinder temperature of 280°C and a screw speed of 350 rpm using a twin-screw extruder (manufactured by Toshiba Machine Co., Ltd.: TEM18SS) , and a resin composition (pellet) was obtained.

[0128] Table 1 shows the results of the following evaluations performed using the obtained resin composition (pellets).

[0129]

[0130] (B) The number average molecular weight of the styrene-olefin block copolymer is as follows.

[0131] A: Less than 100,000

[0132] B: More than 100,000 and less than 200,000

[0133] C: More than 200,000

[0134]

[0135] The resin composition (pellet) obtained above was dried at 70°C for 3 hours, and then, using an injection molding machine (manufactured by Toshiba Machine Co., Ltd., "EC75SX"), it was molded at a cylinder temperature of 270°C and a mold temperature of 60°C. The UL94 combustion test piece of 127mm*12.7mm*1.6m...

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Abstract

Provided are a resin composition whereby a molded article can be provided in which whitening upon bending is effectively suppressed, and an electric wire and a molded article in which the resin composition is used. A resin composition including 50 to 99 parts by mass of a polyphenylene ether resin and 50 to 1 part by mass of a styrene-olefin block copolymer having a number-average molecular weightof less than 100,000 and a content of styrene-derived constituent units of 15 to 40% by mass.

Description

technical field [0001] The present invention relates to a resin composition, a molded article, and an electric wire. Background technique [0002] Polyphenylene ether resins are known as engineering plastics excellent in transmittance, mechanical properties, heat resistance, dimensional stability, low water absorption, and electrical properties, but are poor in impact resistance. Therefore, polyphenylene ether resins are often used in admixture with other polymers for the purpose of utilizing the advantages of polyphenylene ether resins and compensating for their disadvantages. Examples of other polymers include styrene-olefin block copolymers. [0003] Specifically, for example, Patent Document 1 discloses a resin composition comprising (a) polyphenylene ether, (b) polystyrene, and (c) a hydrogenated block copolymer , the (c) hydrogenated block copolymer is formed by hydrogenating the block copolymer, and the block copolymer comprises at least 2 polymer blocks A mainly co...

Claims

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Application Information

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IPC IPC(8): C08L71/12B32B1/00B32B27/00B32B27/18C08K3/22C08K5/098C08K5/49C08L23/06C08L53/02H01B3/42H01B3/44H01B7/295
CPCB32B1/00B32B27/00B32B27/18C08K3/22C08K5/098C08K5/49C08L23/06C08L53/02C08L71/12H01B3/42H01B3/44H01B7/295
Inventor 柳泽贤一
Owner MITSUBISHI ENG PLASTICS CORP
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