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Transparent, fire-retardant aromatic polycarbonate resin composition and molded product

A polycarbonate resin, aromatic technology, applied in the field of aromatic polycarbonate resin composition, can solve the problems of limited use, impact resistance, heat resistance reduction, molding mold corrosion, etc.

Active Publication Date: 2012-12-26
MITSUBISHI GAS CHEM CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a polycarbonate resin composition containing a halogen-based flame retardant containing chlorine or bromine may cause a decrease in thermal stability or corrosion of the screw of the molding machine or the molding die during molding processing.
In addition, polycarbonate resin compositions containing phosphorus-based flame retardants hinder the high transparency that is characteristic of polycarbonate resins, or cause reductions in impact resistance and heat resistance, so their applications are sometimes limited.

Method used

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  • Transparent, fire-retardant aromatic polycarbonate resin composition and molded product
  • Transparent, fire-retardant aromatic polycarbonate resin composition and molded product
  • Transparent, fire-retardant aromatic polycarbonate resin composition and molded product

Examples

Experimental program
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Effect test

Embodiment

[0072] The polycarbonate resin composition used in Example 1-Example 5, Comparative Example 1-Comparative Example 4, Example 6-Example 12, Comparative Example 5-Comparative Example 8 was prepared by the following method. That is, each component was mixed with a tumbler for 20 minutes at the contents (addition ratio, mass %) shown in Table 2 and Table 3, and then supplied to a twin-screw extruder manufactured by Nippon Steel Works Co., Ltd. with one vent hole. In the extruder (TE×30×CT), the screw rotation speed is 200rpm, the discharge rate is 20kg / hour, and the barrel (barrel) temperature is 310°C. Medium quenching and granulation using a granulator to obtain granules of the polycarbonate resin composition.

[0073] Then, in the transparency test, after drying the obtained pellets at 120° C. for 5 hours, they were molded at a cylinder temperature of 290° C. and a mold temperature of 80° C. Injection molding was performed under the conditions of a molding cycle of 50 seconds,...

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Abstract

Disclosed is a fire-retardant aromatic polycarbonate resin composition with high transparency. The transparent, fire-retardant aromatic polycarbonate resin composition is formed from (A) 100 parts by mass of a transparent aromatic polycarbonate resin comprising 50 mass% to 99 mass% of an aromatic polycarbonate resin-A having a viscosity average molecular weight (Mv) of 3103 to 2.5104 and 1 mass% to 50 mass% of an aromatic polycarbonate resin-B having a viscosity average molecular weight (Mv) of 5104 to 9104, and (B) 510-3 parts by mass to 910-2 parts by mass of a fire retardant comprising the alkali metal salt of an organic sulfonic acid, wherein the Q value is no more than 0.1 cm3 / second, a molded product with a thickness of 2.0 mm that was molded from said aromatic polycarbonate resin composition meets the UL94V-0 standard, and the haze value of a molded product with a thickness of 3.0 mm is no more than 2%.

Description

technical field [0001] The present invention relates to a transparent flame-retardant aromatic polycarbonate resin composition and a molded article obtained by molding the transparent flame-retardant aromatic polycarbonate resin composition as a raw material. Background technique [0002] Polycarbonate resin is a resin with excellent heat resistance, mechanical properties, and electrical properties. For example, it is widely used in the manufacture of vehicle materials, electrical and electronic equipment materials, various electrical equipment materials for household use, housing materials, and other industrial fields. Materials etc. In particular, the flame-retardant polycarbonate resin composition is suitable for use as components of OA and information equipment such as computers, notebook computers, mobile phones, printing machines, copiers, and the like. [0003] Conventionally, flame retardancy has been imparted to polycarbonate resins by blending halogen-based flame ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K5/42
CPCC08K5/42C08L69/00C08L2205/02B29B9/00C08J5/00C08K5/005C08L2201/02C08L2201/10
Inventor 田岛纯
Owner MITSUBISHI GAS CHEM CO INC
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