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Polycarbonate resin composition, production method therefor, masterbatch pellet, and molded body

A technology of polycarbonate resin and composition, which is applied in the field of polycarbonate resin composition and its manufacture, masterbatch pellets and moldings, can solve problems such as poor processability, high melt viscosity, and poor chemical resistance, and achieve Excellent processability, good mechanical properties, and good appearance

Pending Publication Date: 2021-11-09
UBE CHEM IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polycarbonate resin has poor processability due to its high melt viscosity, and is poor in chemical resistance because it is an amorphous resin

Method used

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  • Polycarbonate resin composition, production method therefor, masterbatch pellet, and molded body
  • Polycarbonate resin composition, production method therefor, masterbatch pellet, and molded body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] 25.3% by mass of ABS resin (B), 59.1% by mass of fibrous basic magnesium sulfate particles (C-1), 1.8% by mass of fatty acid metal salt (D) and 13.8% by mass of elastomer (E) were mixed, and the resulting mixture Melt-kneading was carried out at 240° C. for 2 minutes. For the melt kneading, a melt kneading extruder Labo Plastomill Roller Mixer (R60 type, capacity 60 cc, manufactured by Toyo Seiki Co., Ltd.) was used, and the rotational speed of the shaft was 120 rpm. The resulting melt-kneaded product was formed into a sheet by hot pressing (at a temperature of 240° C.), and then cut to obtain masterbatch pellets.

[0101] 24.7% by mass of the above-mentioned masterbatch pellets and 75.3% by mass of the polycarbonate resin (A) were mixed. Thereafter, the polycarbonate resin composition of Example 1 was obtained by melt-kneading at 260° C. and 50 rpm using a twin-screw melt-kneading extruder (L / D=25, manufactured by Imoto Seisakusho Co., Ltd.).

Embodiment 2

[0103] Using 22.8% by mass of ABS resin (B), 53.1% by mass of fibrous basic magnesium sulfate particles (C-1), 1.6% by mass of fatty acid metal salt (D) and 22.5% by mass of elastomer (E). In Example 1, masterbatch pellets were obtained in the same manner.

[0104] The polycarbonate resin composition of Example 2 was obtained like Example 1 except having used 27.5 mass % of said masterbatch pellets, and 72.5 mass % of polycarbonate resin (A).

Embodiment 3

[0106] Using 19.7% by mass of ABS resin (B), 46.2% by mass of fibrous basic magnesium sulfate particles (C-1), 1.4% by mass of fatty acid metal salt (D) and 32.7% by mass of elastomer (E), in addition to the same In Example 1, masterbatch pellets were obtained in the same manner.

[0107] The polycarbonate resin composition of Example 3 was obtained like Example 1 except having used 31.8 mass % of said masterbatch pellets, and 68.2 mass % of polycarbonate resin (A).

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Abstract

A polycarbonate resin composition characterized by including: 50%-90% by mass of a polycarbonate resin (A); 2%-30% by mass of an acrylonitrile-butadiene-styrene copolymer resin (B); 5%-40% by mass of at least one type of basic magnesium sulfate selected from a fibrous basic magnesium sulfate (C-1) and a fan-shaped basic magnesium sulfate (C-2); 0.1%-8% by mass of at least one type (D) selected from a fatty acid metal salt and a fatty acid; and 1%-20% by mass of an elastomer (E).

Description

technical field [0001] The present invention relates to a polycarbonate resin composition, a method for producing the same, a masterbatch pellet, and a molded body. Background technique [0002] Polycarbonate resin has excellent mechanical properties and thermal properties, and thus is widely used in various fields such as the field of OA equipment, the field of electrical and electronic equipment, and the field of automobiles. However, polycarbonate resins have poor processability due to their high melt viscosity, and are poor in chemical resistance because they are amorphous resins. Therefore, in order to improve the chemical resistance of a polycarbonate resin, it is known to add a polyolefin resin to a polycarbonate resin. In order to improve the compatibility between the two materials having different properties and to impart practical mechanical properties, many resin compositions to which compatibilizers such as elastomers or fillers have been added have been propose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/22C08K5/09C08K7/04C08L55/02C08L69/00C08K3/30
CPCC08K7/04C08K3/30C08L69/00C08K5/09C08J3/226C08J2369/00C08J2455/02C08J2453/02C08K2003/3063C08L55/02C08L53/02C08L101/00C08K5/098C08J3/22C08J2425/08
Inventor 高山哲生加藤裕三稻垣徹
Owner UBE CHEM IND CO LTD
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