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Polycarbonate resin composition and molded article thereof

A technology of polycarbonate resin and composition, applied in the field of polycarbonate resin composition and its molded products, can solve the problem of no flame retardancy, and achieve high flame retardancy, high thermal conductivity and high mechanical strength. Effect

Inactive Publication Date: 2012-05-23
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no record about the flame retardancy required for housings such as electronic equipment. Since no flame retardant or anti-drip agent is added, it should not have sufficient flame retardancy.

Method used

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  • Polycarbonate resin composition and molded article thereof
  • Polycarbonate resin composition and molded article thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5 and comparative example 1～8

[0063] After each compounding component is dried separately, use the twin-screw extruder (manufactured by Toshiba Machine Co., Ltd., trade name TEM35) with the compounding ratio and compounding ratio shown in Table 1 and Table 2. , the number of screw revolutions was 100-600 revolutions, and the discharge rate was 10-30 kg / hr for melting and kneading to obtain samples for evaluation.

[0064] Composition materials used in Examples and Comparative Examples are as follows.

[0065] Component (A): FN1900A [MV = 19500], FN2200A [MV = 21500], FN2600A [MV = 25500] [trade name, manufactured by Idemitsu Kosan Co., Ltd.]

[0066] Feed molecular weight (Japanese: Shida み molecular weight) (viscosity average molecular weight) is adjusted to [MV] 19000~30000

[0067] Ingredient (B):

[0068] ・Natural graphite: Flake graphite powder CB-150 [trade name, manufactured by Nippon Graphite Industry Co., Ltd.]: Flake shape, particle size distribution of 77 to 87% by mass for 63 μm or less, 5% b...

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Abstract

Disclosed is a polycarbonate resin composition which contains, per 100 parts by mass of (A) a polycarbonate resin, 30-100 parts by mass of (B) artificial graphite, 0.01-5 parts by mass of (C) an organopolysiloxane that has a group selected from among a phenyl group, a methoxy group and a vinyl group, and 0.01-5 parts by mass of (D) a fluorine compound. Also disclosed are: a molded body which is obtained by molding the polycarbonate resin composition; and a component for an electrical / electronic device, a case for an electrical / electronic device and a chassis for an electrical / electronic device, each comprising the molded body. The polycarbonate resin composition provides a molded article which has high thermal conductivity and high mechanical strength, while exhibiting high flame retardancy even in cases when the molded article is formed thin.

Description

technical field [0001] The present invention relates to a polycarbonate resin composition and a molded article thereof, and particularly to a polycarbonate resin composition providing a molded article with high thermal conductivity, high mechanical strength, and high flame retardancy. Background technique [0002] In the development of products in the field of electrical and electronic products, due to the high resolution and high-speed processing of digital cameras and digital video cameras, the miniaturization of projectors, the high-speed processing of computers and portable devices, and the use of LEDs for various light sources, heat-resistant measures are gradually increasing. Be the point. [0003] Countermeasures are also taken for the heat dissipation circuit of metal parts, but in miniaturized machines, since the heat dissipation circuit becomes complicated, it is necessary to integrate the resin case and the heat dissipation circuit, have excellent thermal conducti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K3/04
CPCC08L83/04C08L27/18C08K3/04C08L69/00C08L2666/02
Inventor 竹内敬直前场诚一
Owner IDEMITSU KOSAN CO LTD