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Thermoplastic resin composition and resin molding

A thermoplastic resin and composition technology, applied in the field of excellent thermoplastic trees composed of plastic resin compositions, can solve the problems of undisclosed flame retardant and thermally stable resin compositions, and achieve excellent appearance, excellent physical property balance, The effect of increasing rigidity

Active Publication Date: 2009-03-25
MITSUBISHI ENG PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these patent documents only describe the point that a flame retardant can be added, and do not disclose that the aromatic polycarbonate resin contains particulate talc and a non-halogen flame retardant that is excellent in flame retardancy and thermal stability. resin composition

Method used

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  • Thermoplastic resin composition and resin molding
  • Thermoplastic resin composition and resin molding
  • Thermoplastic resin composition and resin molding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1—16 and comparative example 1—12～1

[0320] Embodiment 1-16 and comparative example 1-12~1-14

[0321] With a drum mixer, each component shown in Table 5 was uniformly mixed with the ratio shown in the table, and a twin-screw extruder ("TEX30XCT" produced by Japan Steel Works, L / D=42, The number of barrels is 12), the temperature of the barrel is 250° C., and the rotation speed of the screw is 250 rpm, the extruder is supplied from the barrel 1, and pellets of the resin composition are produced by melt kneading.

[0322]

[0323] Embodiment 1-1~1-3 and comparative example 1-1~1-5

[0324] After drying the pellets obtained in the above resin composition adjustment at 110°C for more than 6 hours, use an M150AII-SJ injection molding machine manufactured by Meiki Seisakusho Co., Ltd. at a cylinder temperature of 280°C, a mold temperature of 80°C, and a molding cycle of 55°C. Under the conditions of seconds, ASTM test pieces and 100mmΦ disc-shaped molded products (thickness 3mmt) were made. In addition, the retent...

Embodiment 2—1～2—9

[0345] Examples 2-1 to 2-9 and Comparative Examples 2-1 to 2-5 (thermoplastic resin compositions described in the second point)

[0346]

[0347] With a drum mixer, each component shown in Table 6 and Table 7 is mixed uniformly with the ratio shown in the table, and a twin-screw extruder ("TEX30XCT" produced by Japan Steel Works, L / D= 42. The number of barrels is 12), the temperature of the barrel is 270° C., the screw speed is 250 rpm, the barrel 1 is supplied to the extruder, and the resin composition pellets are produced by melting and kneading.

[0348]

[0349] After drying the pellets obtained in the above resin composition adjustment at 120°C for more than 6 hours, use an M150AII-SJ injection molding machine manufactured by Meiki Seisakusho Co., Ltd. at a cylinder temperature of 280°C, a mold temperature of 80°C, and a molding cycle of 55°C. Under the conditions of seconds, ASTM test pieces and 100mmΦ disc-shaped molded products (thickness 3mmt) were produced. In a...

Embodiment 3—1～3—9

[0357] Examples 3-1 to 3-9 and Comparative Examples 3-1 to 3-9 (thermoplastic resin compositions described in the third point)

[0358]

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Abstract

Disclosed is a thermoplastic resin composition which comprises: an aromatic polycarbonate resin (component A) (which may comprise an aromatic polycarbonate resin (component A1) and a thermoplastic resin other than an aromatic polycarbonate resin (component A2)); a granulated talc (component B) which comprises a talc having an average particle diameter of 0.1 to 10 [mu]m, wherein the talc is so granulated as to have a bulk density of 0.4 to 1.5 g / ml; a rubbery polymer (component C, an optional component); a flame retardant (component E, an optional component); and a fluorinated polyolefin (component F, an optional component); wherein the granulated talk (component B) has such a grain size that the ratio of granules trapped on a 500 [mu]m-mesh sieve is 55% by weight or more. Also disclosed is a resin molded article formed by molding the thermoplastic resin composition. The thermoplastic resin composition and the resin molded article are excellent in extrusion moldability, stiffness, flame retardancy, impact resistance and thermal stability and show excellent balance among physical properties.

Description

technical field [0001] The present invention relates to a thermoplastic resin composition and a resin molded article, and relates in detail to thermal stability, impact resistance, rigidity, and extrusion processing of a resin component containing an aromatic polycarbonate resin containing specific granular talc. A thermoplastic resin composition with improved properties and flame retardancy, and excellent balance of physical properties, and a resin molded article composed of the thermoplastic resin composition. Background technique [0002] As a general-purpose engineering plastic, aromatic polycarbonate resin has excellent transparency, impact resistance, heat resistance, and dimensional stability. Due to its excellent characteristics, it is used in electrical / electronic / OA machine parts, mechanical parts, and vehicle parts. used in a wide range of fields. In addition, a polymer alloy composed of an aromatic polycarbonate resin and a thermoplastic polyester resin exerts t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K3/34C08L51/04C08L67/00C08L101/00
Inventor 中村充中野博高木喜代次岩木光地
Owner MITSUBISHI ENG PLASTICS CORP
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