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Thermoplastic resin composition, and molded article

A technology of thermoplastic resin and composition, which is applied in the field of thermoplastic resin composition and its molded body, can solve the problems of long-term heat resistance of deformation and decrease of heat resistance of resin composition, and achieve improved flame retardancy and impact resistance, Excellent chemical resistance and heat resistance, good appearance effect

Inactive Publication Date: 2011-04-13
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of phosphate ester will cause the heat resistance of the resin composition to decrease, and there are concerns about deformation during molding and long-term heat resistance.

Method used

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  • Thermoplastic resin composition, and molded article
  • Thermoplastic resin composition, and molded article
  • Thermoplastic resin composition, and molded article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～15 and comparative example 1～13

[0146] After drying the components (A) to (E), each component was uniformly mixed in the ratios shown in Table 1 and Table 2 using a rotary drum, and then supplied to a ventilated twin-screw extrusion molding machine with a diameter of 35 mm ( Toshiba Machine Co., Ltd., model name: TEM35), kneaded at a temperature of 260° C., and granulated.

[0147]After drying the obtained pellets at 120° C. for 5 hours, injection molding was performed using an injection molding machine at a cylinder temperature of 240° C. and a metal mold of 80° C. to obtain test pieces.

[0148] The physical properties of the obtained test pieces were measured and evaluated according to the following methods, and the results are shown in Table 1 and Table 2.

[0149]

[0150] (1) Flame retardancy

[0151] A vertical burning test was performed on test pieces having a thickness of 1.2 mm and 1.5 mm produced in accordance with UL Standard 94. According to the test results, the grades of UL-94 flammability...

Embodiment 1～15

[0166] According to the present invention, it is possible to provide a thermoplastic resin composition having improved flame retardancy and impact resistance, and a good balance between chemical resistance and heat resistance. Furthermore, by using the thermoplastic resin composition of this invention, the molded object with few appearance defects can also be provided.

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Abstract

Disclosed is a thermoplastic resin composition comprising a combination of 5 to 89.95 mass% of an aromatic polycarbonate resin (A), 5 to 60 mass% of an aliphatic polyester (B), 5 to 30 mass% of talc (C), 0.05 to 3 mass% of a silicone having a functional group (D), and 0 to 2 mass% of polytetrafluoroethylene (E), wherein the total amount of the components (A) to (E) is taken as 100 mass%, and wherein the ratio of the mass of the component (D) to the mass of the component (B) (i.e., a (D) / (B) ratio) is 0.003 to 0.6. The thermoplastic resin composition has remarkably improved flame retardancy and impact resistance, has excellent chemical resistance and heat resistance, and can be molded into an article having excellent appearance. Also disclosed is a molded article produced by using the thermoplastic resin composition.

Description

technical field [0001] The present invention relates to a thermoplastic resin composition and a molded article. Specifically, it relates to components suitable for office automation equipment, electrical and electronic equipment, and communication equipment, which have excellent flame retardancy and impact resistance, as well as excellent chemical resistance and heat resistance, and A thermoplastic resin composition capable of imparting an excellent appearance to a molded article, and a molded article thereof. Background technique [0002] Polycarbonate is widely used in the fields of automobiles, electricity and electronics because of its excellent heat resistance and impact resistance. Meanwhile, in the fields of automobiles and electrics and electronics, weight reduction and thinning of products are being promoted. In order to improve the fluidity of polycarbonate, blending ABS resin and AS resin is becoming the mainstream. By mixing ABS resin, not only fluidity can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L83/04C08K3/34C08L27/18C08L67/02
CPCC08L27/18C08L69/00C08L83/04C08L67/02C08K3/34C08L2666/02C08L2666/14
Inventor 早田祐介
Owner IDEMITSU KOSAN CO LTD
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