Thermoplastic resin composition and molded product thereof

A technology of thermoplastic resin and composition, applied in the field of thermoplastic resin composition and its molded body, can solve the problems of high cost, difficulty in obtaining high-quality appearance of piano black, environmental pollution and the like

Active Publication Date: 2015-07-08
NIPPON A & L INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, on the one hand, such a high-quality appearance is required, on the other hand, due to the environmental pollution and high cost caused by the emission of volatile organic compounds (VOC), it is strongly required not to perform the painting process.
[0005] However, although PC / ABS is a material with excellent impact resistance and heat resistance, there is a problem that it is a white turbid material, so even if it contains dyes or pigments, it will turn white, and it is difficult to obtain high-quality materials such as piano black (pitch black). Quality Appearance

Method used

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  • Thermoplastic resin composition and molded product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0274] Using a twin screw extruder ("TEM-58SS" manufactured by Toshiba Machine Co., Ltd.), the thermoplastic resin composition was produced as follows.

[0275] The supply port is provided at one place on the upstream side, and supplies the components (a), (B), (C), and (D) that have been sufficiently dried to remove moisture.

[0276] The barrel temperature of the extruder at this time was set to 250°C throughout.

[0277] In addition, the discharge amount of the kneaded product at this time was 300 kg / hour, and the screw rotation speed was 250 rpm.

[0278] The types and mixing ratios of the raw materials at this time are shown in Table 1 for example.

[0279] Using the obtained pellets, the aforementioned evaluations were performed. The results are shown in Table 1.

Embodiment 2、4～7

[0281] As the component (a), components having different blending amounts and grafting ratios of vinyl cyanide monomers are supplied.

[0282] In addition, the materials shown in Table 1 below were used as the (B) component, and the addition amounts of the (C) component and (D) component were appropriately adjusted. The other conditions were the same as in Example 1, and pellets were obtained.

[0283] Using the obtained pellets, the aforementioned evaluations were performed. The results are shown in Table 1.

Embodiment 3

[0285] The components shown in Table 1 below were used as (a), (B), (C), and (D) components, and the addition amount was adjusted. The other conditions were the same as in Example 1, and pellets were obtained.

[0286] Using the obtained pellets, the aforementioned evaluations were performed. The results are shown in Table 1.

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Abstract

A thermoplastic resin composition comprising (A) a graft copolymer produced by grafting at least one monomer selected from the group consisting of an aromatic vinyl monomer, a vinyl cyanide monomer and other copolymerizable monomers onto a rubbery polymer, (B) a polymer produced by polymerizing at least one monomer selected from the group consisting of an aromatic vinyl monomer, a vinyl cyanide monomer and other copolymerizable monomers, (C) an amorphous polyester and (D) an aromatic polycarbonate, wherein the component (C) contains diol components, and wherein a 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) residue and a 1,4-cyclohexanedimethanol (CHDM) residue are contained in amounts of 10 to 70 mol% and 30 to 90 mol%, respectively, relative to the total molar percentage, i.e., 100 mol%, of the diol components.

Description

Technical field [0001] The present invention relates to a thermoplastic resin composition and a molded body thereof. Background technique [0002] The alloy of acrylonitrile-butadiene-styrene copolymer (ABS resin) and aromatic polycarbonate (PC / ABS) combines the good formability of ABS and the excellent impact resistance of PC, and is widely used Fields requiring high impact resistance, such as housings for portable devices and home appliances. In addition, it is also widely used in areas requiring heat resistance in addition to the above characteristics, such as interior parts of automobiles. [0003] In recent years, for materials that are visible to users such as housings, there is a strong demand for design in some fields, and as one of them, a pitch black (piano black) appearance is required. In such fields, the method of coating the surface of resin materials has been mainly used in the past. [0004] In addition, on the one hand, such a high-quality appearance is required, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L25/12C08L51/04C08L67/03
CPCC08L25/12C08L51/04C08L67/02C08L67/03C08L69/00C08L51/06C08L2205/035C08L2201/02C08L2207/04C08L55/02
Inventor 杉冈晃子藤泽朋幸
Owner NIPPON A & L INC
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