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Polycarbonate resin composition and molded article

A technology of polycarbonate resin and composition, which is applied in the field of resin composition and molded products, and can solve problems such as difficult manufacturing

Active Publication Date: 2016-10-26
MITSUBISHI RAYON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the dyes and pigments used have the following problems: many of them must meet specific conditions, and it is not easy to manufacture them.

Method used

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  • Polycarbonate resin composition and molded article
  • Polycarbonate resin composition and molded article
  • Polycarbonate resin composition and molded article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0269] In the polymerization device equipped with stirring paddle and the reflux cooler controlled at 100°C, the molar ratio is ISB / CHDM / DPC / calcium acetate monohydrate=0.70 / 0.30 / 1.00 / 1.3×10 -6 Add ISB, CHDM, DPC and calcium acetate monohydrate purified by distillation so that the concentration of chloride ions is 10 ppb or less, and fully perform nitrogen replacement (oxygen concentration 0.0005% to 0.001% by volume). Next, heating was performed with a heat medium, stirring was started when the internal temperature reached 100°C, and the contents were melted and made uniform while controlling the internal temperature to 100°C. Thereafter, the temperature was raised, and the internal temperature was raised to 210°C in 40 minutes. When the internal temperature reached 215°C, the internal temperature was controlled to maintain the temperature, and the pressure was reduced. After reaching 215°C, the pressure was reduced for 90 minutes. It was 13.3 kPa (absolute pressure, hereinaf...

Embodiment 3

[0293] Using the polycarbonate resin obtained in Example 1, in a drum mixer, with respect to 100 parts by mass of the polycarbonate resin, uniformly mix the following: As a colorant, Macrolex Violet 3R manufactured by LANXESS Corporation (Dye Index No. No. Solvent Violet 36): 0.01 parts by mass, 0.01 parts by mass of Macrolex Red E2G (Dye Index No. Solvent Red 179) manufactured by LANXESS, Oil Green 5602 (Dye Index No. Solvent Red 179) manufactured by Moto Chemical Industry Co., Ltd. Green 3): 0.04 parts by mass, Macrolex Blue RR (dye index number No. solvent blue 97) manufactured by LANXESS Co., Ltd.: 0.04 parts by mass; as an antioxidant, ADKSTAB AO-60 manufactured by ADEKA Corporation: 0.1 parts by mass, ADKSTAB 2112 manufactured by ADEKA Corporation: 0.05 parts by mass. After uniform mixing, the pellets of the resin composition were produced by melt-kneading at a cylinder temperature of 240° C. using a single-screw extruder.

[0294] Using the produced pellets, a molded a...

Embodiment 2

[0298] Using the polycarbonate resin obtained in Example 1, with respect to 100 parts by mass of the polycarbonate resin, as a colorant, Macrolex Violet 3R (Dye Index No. Solvent Violet 36) manufactured by LANXESS Co., Ltd.: 0.01 parts by mass, Macrolex Red E2G manufactured by LANXESS (Dye Index No. Solvent Red 179): 0.03 parts by mass, Oil Green 5602 manufactured by Arimoto Chemical Industry Co., Ltd. (Dye Index No. Solvent Green 3): 0.05 parts by mass, LANXESS Co., Ltd. Macrolex Blue RR manufactured by the company (Dye Index No. Solvent Blue 97):

[0299] Except 0.01 mass part, it carried out similarly to Example 3, and obtained the pellet.

[0300] ASTM test pieces and flat molded products (90 mm x 50 mm x 3 mm thick) were produced from the pellets in the same manner as in Example 3.

[0301] As shown in Table 1, the molded article of the resin composition obtained in Example 2 had jet blackness, distinct image, impact resistance, surface hardness, and heat retention stabi...

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Abstract

An object of the present invention is to provide a polycarbonate resin composition and a molded article excellent in jet blackness, distinctness of image, impact resistance, scratch resistance due to high hardness, flame retardancy, and thermal retention stability. The present invention provides a polycarbonate resin composition and a molded article using the composition. The polycarbonate resin composition contains a polycarbonate resin and a colorant. A structural unit of a hydroxy compound, and the L* value of the polycarbonate resin composition measured by the JIS K7105 reflected light method is 6 or less.

Description

technical field [0001] The present invention relates to a resin composition and a molded article excellent in jet blackness, distinctness of image, impact resistance, scratch resistance due to high surface hardness, flame retardancy, and thermal retention stability. Background technique [0002] In recent years, the thickness reduction, densification, and enlargement of molded articles molded from resin compositions have progressed, and demands for improvement in various physical properties of molded articles have been increasing. In particular, casings of electrical, electronic, and office automation (OA) equipment, interior and exterior parts for automobiles, and other life-related exterior parts are required to have deep jet blackness and sharpness of image in order to create a sense of luxury , and at the same time have both flame retardancy and thermal retention stability. [0003] In response to such demands, resin compositions characterized by containing dyes and pig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08G64/02
CPCC08K5/0041C08L69/00C08G64/02C08J3/20C08J5/00
Inventor 垣内博贺佐佐木一雄横木正志
Owner MITSUBISHI RAYON CO LTD
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