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Aromatic polycarbonate resin composition and molded article thereof

A technology of polycarbonate resin and resin composition, applied in information storage, instruments, optics, etc., can solve problems such as increased haze of resin composition

Active Publication Date: 2011-01-26
TEIJIN KASEK KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that the haze of the resin composition increases with the masterbatch production method.

Method used

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  • Aromatic polycarbonate resin composition and molded article thereof
  • Aromatic polycarbonate resin composition and molded article thereof
  • Aromatic polycarbonate resin composition and molded article thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0169] (I) Manufacture of pellets

[0170] Pellets were produced according to the following steps (i) to (iii).

[0171] (Step (i): Preparation of particle-containing resin (component B))

[0172] (Preparation of coated lanthanum hexaboride particles (component B-1))

[0173] 8 parts by weight of lanthanum hexaboride particles (manufactured by Sumitomo Metal Mining Co., Ltd.: KHDS-06) with an average particle diameter of 80 nm were mixed with 0.5 parts by weight of γ-aminopropyltriethoxysilane as a silane coupling agent and In 392 parts by weight of water, γ-aminopropyltriethoxysilane was adsorbed on the surface of the lanthanum hexaboride particle for surface modification.

[0174] Next, after removing the water with a centrifuge, add 45 parts by weight of tetraethoxysilane to a mixed solvent of surface-modified lanthanum hexaboride particles, 280 parts by weight of ethanol, and 70 parts by weight of water, and polymerize in six parts by hydrolysis. A coating film of silic...

Embodiment 2

[0193] In the step (ii), 0.09 parts by weight of PC (component A) and 0.01 parts by weight of the particle-containing resin (component B) were uniformly mixed with a super floater to obtain a masterbatch of 0.1 parts by weight.

[0194] In addition, in the process (ii-1), 0.1 parts by weight of masterbatch and 4.45 parts by weight of PC (component A), 0.02 parts by weight of S100A, 0.03 parts by weight of PEPQ, 0.10 parts by weight of VPG and 0.30 parts by weight of UV1577 was uniformly mixed with a roller to obtain 5 parts by weight of secondary masterbatch for supplying to the extruder.

[0195] Pellets were produced in the same manner as in Example 1 except for the above steps. Then, the same molding as in Example 1 was performed to prepare a test piece. Table 1 shows the evaluation results of the obtained test pieces.

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Abstract

Disclosed is a resin composition which provides a molded article that effectively blocks heat radiation of sunlight, while having excellent transparency. A molded article of the resin composition is also disclosed. The resin composition contains an aromatic polycarbonate resin (component A), particles of a hexaboride of at least one element selected from the group consisting of Y, La, Ce, Pr, Nd,Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sr and Ca (component B-1) and a resin other than the component A (component B-2). The total content of the component B-1 and the component B-2 is 0.001-1 part by weight relative to 100 parts by weight of the component A. The resin composition contains particles (1) composed of the component B-1 and particles (2) composed of the component B-1 and the component B-2, and the particles (1) and the particles (2) both have a number average secondary particle diameter of not more than 50 [mu]m and a maximum secondary particle diameter of not more than 300 [mu]m.

Description

technical field [0001] The present invention relates to a resin composition containing an aromatic polycarbonate resin and having infrared shielding properties, and a molded article thereof. Specifically, it relates to a resin composition and a molded article thereof that effectively shield infrared rays from sunlight and provide a molded article having excellent transparency. Background technique [0002] Aromatic polycarbonate resins have excellent transparency, heat resistance, and mechanical strength, and are widely used in electrical, mechanical, automotive, and medical applications. For example, it has been used in optical information recording media, optical lenses, glazing materials for buildings and vehicles, and the like. [0003] So-called window materials, such as glass window materials for buildings and vehicles, are required to have the property of shielding infrared rays from sunlight in order to suppress the temperature rise in the interior of a room or a ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08J3/22C08K3/28C08K3/38C08K9/02
CPCC08L69/00C08K3/38C08J2469/00C08J3/226G11B7/2534G02B1/04C08L33/06C08L2666/04C08L2666/02C08J3/22C08K9/02
Inventor 新田晃弘
Owner TEIJIN KASEK KK
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