Polycarbonate resin composition

A technology of polycarbonate resin and resin composition, which is applied in the direction of battery pack parts, electrical components, circuits, etc., can solve the problems of reduced impact resistance, achieve low gloss, high flame retardancy and impact resistance, The effect of excellent surface appearance

Active Publication Date: 2015-01-07
MITSUBISHI ENG PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, polycarbonate resins blended with phosphorus-based flame retardants cause a marked decrease in the inherent impact resistance of polycarbonate resins, so formulations that also include elastomers are used

Method used

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  • Polycarbonate resin composition
  • Polycarbonate resin composition
  • Polycarbonate resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6、 comparative example 1-3

[0365] (embodiment 1-6, comparative example 1-3, reference example 1)

[0366]

[0367] These examples were blended at the ratios (mass ratios) shown in Table 3 below and these examples were evaluated. The results are shown in Table 3.

[0368] [table 3]

[0369]

[0370] From Examples 1 to 6 in Table 3, it is apparent that the polycarbonate resin (A) contains each predetermined amount of the oligophosphate ester-based flame retardant (B1) alone and further contains the The polycarbonate resin composition of silicone-based core / shell type elastomer (C) and carbon black (D) has high levels of flame retardancy and impact resistance, and excellent surface appearance (low gloss).

[0371] Meanwhile, it was apparent that the polycarbonate resin compositions of the comparative examples that did not satisfy the requirements specified in the present invention had poor flame retardancy and impact resistance, and were also unsatisfactory in appearance. Furthermore, from Referenc...

Embodiment 12-16、 comparative example 6-8

[0380]

[0381] These examples were blended at the ratios (mass ratios) shown in Table 5 below and these examples were evaluated. The results are shown in Table 5.

[0382] [table 5]

[0383]

[0384] From Examples 12-16 in Table 5, it is apparent that each predetermined amount of the oligophosphate-based flame retardant (B1) and the phosphazene-based flame retardant (B2) are included in the polycarbonate resin (A). ) both and further comprising the polycarbonate resin composition of the siloxane-based core / shell type elastomer (C) and carbon black (D) specified in the present invention have high levels of flame retardancy and impact resistance, and Excellent surface appearance (low gloss).

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Abstract

A polycarbonate resin composition for use in forming a polycarbonate resin molding which bears a thin-wall part having a wall thickness of as small as 0.6mm or less, characterized in that: a condensed phosphoric ester-based flame retardant (B1) and / or a phosphazene-based flame retardant (B2) are contained with the provisos that (i) when (B1) is contained alone, the content of (B1) is 5 to 20 parts by mass, (ii) when (B2) is contained alone, the content of (B2) is 10 to 30 parts by mass, and (iii) when both (B1) and (B2) are contained, the total content of both is 5 to 30 parts by mass with the proportions of (B1) and (B2) being 1 to 49 mass% and 99 to 51 mass% respectively, each content being relative to 100 parts by mass of a polycarbonate resin (A); 3 to 15 parts by mass of a siloxane-based core / shell type elastomer (C) and 0.8 to 10 parts by mass of carbon black (D) are contained relative to 100 parts by mass of the polycarbonate resin (A), said siloxane-based core / shell type elastomer (C) having an Si content of 9.1 to 30 mass% and a number-average particle diameter of 50 to 1000nm; and the melt flow rate of the resin composition per unit time is 15×10-2 to 50×10-2 cm3 / sec.

Description

technical field [0001] The present invention relates to polycarbonate resin compositions, and more particularly to polycarbonate resin moldings for molding polycarbonate resins having thin-walled portions and exhibiting high levels of flame retardancy and impact resistance and excellent surface appearance (low gloss) Articles of polycarbonate resin composition. Background technique [0002] Polycarbonate resins have excellent heat resistance, mechanical characteristics, and electrical properties, and they are widely used as materials in automobiles, electric and electronic equipment, housing construction, and materials for manufacturing parts in other industrial fields. In particular, flame-retardant polycarbonate resins are suitable for use as components in computers, notebook personal computers, mobile phones, and office automation and data equipment such as printers and copiers. [0003] Blending of halogen-based flame retardants into polycarbonate resins has been used i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K3/04C08K5/521C08L51/08H01M50/121H01M50/133H01M50/143
CPCC08L69/00C08L51/08C08L2207/53C08L2201/02C08L2205/025C08L2205/03C08L2205/035C08L2203/20C08K2201/014H01M50/143H01M50/121H01M50/133C08L51/085C08L27/18C08K13/02C08K3/04C08K5/523C08K5/5399Y02P20/582C08K5/521Y02E60/10C08L51/04
Inventor 富田恵介门田敏树
Owner MITSUBISHI ENG PLASTICS CORP
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