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Polycarbonate resin composition and molded article

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

Active Publication Date: 2013-10-30
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 reaction device equipped with a stirring blade and a 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 chloride ion concentration is 10 ppb or less, and fully perform nitrogen replacement (oxygen concentration 0.0005 vol% to 0.001 vol%). 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, herein...

Embodiment 2

[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 Green 179) manufactured by Moto Chemical Industry Co., Ltd. 3): 0.04 parts by mass, Macrolex Blue RR (Dye Index No. Solvent Blue 97) manufactured by LANXESS Co., Ltd.: 0.04 parts by mass; as an antioxidant, ADKSTAB AO-60 manufactured by ADEKA Co., Ltd.: 0.1 parts by mass, Inc. ADKSTAB2112 manufactured by ADEKA: 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 article of the polycar...

Embodiment 3

[0298] In Example 2, as a colorant, Macrolex Violet 3R manufactured by LANXESS Corporation (Dye Index No. Solvent Violet 36): 0.01 parts by mass, Macrolex Red E2G manufactured by LANXESS Corporation (Dye Index No. Solvent Red 179) , Oil Green 5602 manufactured by Moto Chemical Industry Co., Ltd. (Dye Index No. Solvent Green 3): 0.05 parts by mass, Macrolex Blue RR manufactured by LANXESS Co., Ltd. (Dye Index No. Solvent Blue 97): 0.01 parts by mass, except Otherwise, it carried out similarly to Example 2, and obtained the pellet.

[0299] The above pellets were prepared in the same manner as in Example 2 to produce ASTM test pieces and flat molded products (90 mm x 50 mm x 3 mm thick).

[0300] As shown in Table 1, the molded article of the resin composition obtained in Example 3 had jet blackness, distinctness of image, impact resistance, surface hardness, and heat retention stability.

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Abstract

An object of the present invention is to provide a polycarbonate resin composition and a molded article, which are excellent in jet-blackness, image sharpness, impact resistance, scratch resistance owing to high hardness, flame retardancy and heat retention stability. The present invention provides a resin composition comprising a polycarbonate resin comprising a structural unit derived from a cyclic ether structure-containing dihydroxy compound and a coloring agent, which is a polycarbonate resin composition having an L* value of 6 or less as measured by the reflected light method of JIS K7105; and a molded article using the resin composition.

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 Applications(China)
IPC IPC(8): C08L69/00C08G64/02
CPCC08L69/00C08K5/0041C08G64/02C08J3/20C08J5/00
Inventor 垣内博贺佐佐木一雄横木正志
Owner MITSUBISHI RAYON CO LTD
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