Case for electronic devices

A technology for electronic equipment and shells, which is applied in the field of shells for electronic equipment, and can solve problems such as difficulty in obtaining appearance

Active Publication Date: 2015-01-07
POLYPLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with this technology, it is difficult to achieve both flame retardancy and impact resistance in the molded product obtained, and it is difficult to obtain the good appearance required for parts such as housings that are easily exposed to human eyes.

Method used

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  • Case for electronic devices
  • Case for electronic devices
  • Case for electronic devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0116] Hereinafter, examples are given and the present invention will be described in more detail, but the present invention is not limited by these examples.

[0117]

[0118] Details of each component used in Examples and Comparative Examples are as follows.

[0119] Polybutylene terephthalate (PBT); manufactured by WinTech Polymer.Co., Ltd., product name DURANEX (IV=0.8)

[0120] Modified polyethylene terephthalate (modified PET); manufactured using 12.5 mol% isophthalic acid-modified polyethylene terephthalate, TEIJIN FIBERS LIMITED

[0121] Polyethylene terephthalate (unmodified PET); manufactured by TEIJIN FIBERS LIMITED, product name TRF

[0122] Modified polybutylene terephthalate (modified PBT); Modified polybutylene terephthalate using 25 mol% isophthalic acid, manufactured by WinTech Polymer.Co.,Ltd.

[0123] Flame retardant; organic phosphate used, manufactured by Clariant (Japan) K.K., product name Exolit OP1240

[0124] Flame retardant additive; use melamine...

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Abstract

To provide a case for electronic devices, which has a good balance between impact resistance and flame retardancy, while having excellent appearance. Produced is a case for electronic devices, which is configured of a polybutylene terephthalate resin composition that contains (A) a polybutylene terephthalate resin, (B) a modified polyethylene terephthalate resin, (C) a flame retardant that does not contain a halogen atom and (D) a thermoplastic polyester elastomer. The Charpy impact value of the polybutylene terephthalate resin composition as determined in accordance with ISO-179 is 7 kJ/m2 or more, and the polybutylene terephthalate resin composition meets 5VA standard by a test according to UL-94 standard.

Description

technical field [0001] The present invention relates to a casing for electronic equipment. Background technique [0002] Polybutylene terephthalate resin has excellent properties such as mechanical properties, electrical properties, and chemical properties, and has good processability, so it is used as an engineering plastic in a wide range of applications such as electronic device parts and automobile parts. [0003] In particular, among components of electronic equipment, housings that easily come into contact with human eyes are required to have both impact resistance and flame retardancy, as well as excellent appearance. [0004] As a polybutylene terephthalate resin composition that can be used for electronic device parts, a polybutylene terephthalate resin blended with modified polyester, phosphinate, etc. is disclosed. Composition (Patent Document 1). However, with this technique, it is difficult to achieve both flame retardancy and impact resistance in the obtained...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/02C08K3/22C08K5/49C08L67/02
CPCC08L67/02C08K5/521C08L67/025
Inventor 平川阳一五岛一也
Owner POLYPLASTICS CO LTD
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