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Polycarbonate resin composition, and automotive molded article produced using the same

A technology of polycarbonate resin and composition, which is applied in the direction of electrical components, casing/cabinet/drawer components, circuits, etc., can solve the problems of reduced light transmittance, reduced brightness of buttons, etc., and achieves excellent processability, The effect of excellent appearance, excellent reflective and light-shielding properties

Active Publication Date: 2021-02-09
HYUNDAI MOBIS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the gray coloring material is applied, there is a problem that the light transmittance is lowered, so the brightness of the button is lowered

Method used

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  • Polycarbonate resin composition, and automotive molded article produced using the same
  • Polycarbonate resin composition, and automotive molded article produced using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 4 and comparative example 1 to 9

[0092] According to the composition shown in Table 1 below, a mixture was prepared by mixing the components together using known methods. Each mixture was placed in a twin-screw extruder (L / D = 29, Φ = 45 mm), melted, kneaded, and then extruded, thereby preparing a pellet-type polycarbonate resin composition. The prepared pellets were dried at 80°C for 2 hours, and then subjected to injection molding using an injection molding machine set at a barrel temperature of 180 to 220°C and a mold temperature of 60°C, thereby preparing test pieces.

[0093] Physical Property Evaluation

[0094] The physical properties of the samples of Examples 1 to 4 and Comparative Examples 1 to 9 were evaluated as follows, and the evaluation results are shown in Table 2 below.

[0095] (1) Melt index (g / 10 min) is measured according to standard ISO 1133 (at 260° C. under 5 kg).

[0096] (2) Room temperature impact strength (kJ / m 2 ): Measure the notched impact strength at room temperature (23° C....

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Abstract

The present disclosure relates to a polycarbonate resin composition, and an automotive molded article produced using the same. The polycarbonate resin composition includes: 60 to 70 wt % of a polycarbonate resin; 4 to 10 wt % of a rubber-modified vinyl-based graft copolymer; 3 to 11 wt % of a styrene-based copolymer; 15 to 25 wt % of titanium dioxide; and 2 to 3 wt % of a mineral filler.

Description

technical field [0001] Exemplary embodiments of the present disclosure relate to a polycarbonate resin composition having excellent light-reflecting and light-shielding properties and an automotive (motor vehicle) molded article produced using the same. Background technique [0002] Controlling in-vehicle infotainment (IVI) devices that provide information such as in-vehicle status and navigation functions as well as entertainment functions such as music and video playback has attracted attention. In recent years, with the popularization of smartphones and tablets and the development of information technology (IT), more and more various infotainment services have become become possible. These IVI devices (products) include Audio Video Navigation (AVN), Integration Center Stack (ICS), etc. [0003] In recent years, the production of IVI devices employing a dead-front (empty front) design has been expanded, and in response to this expansion, a gray coloring material is requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L25/12C08K3/22C08K3/34H01H9/02H05K5/02
CPCC08L69/00H01H9/02H05K5/0217C08L2201/08C08K2003/2241C08L2205/03C08L55/02C08L25/12C08K3/22C08K3/34C08K9/00C08K2201/005C08L2207/53C08K2201/003
Inventor 张在濬金明一金宰焕朴真率李秀珉
Owner HYUNDAI MOBIS CO LTD
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