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Polycarbonate resin composition with superior appearance

A technology of polycarbonate resin and resin composition, applied in the field of polycarbonate resin composition and its molded products, can solve problems such as poor appearance

Active Publication Date: 2013-06-05
TEIJIN KASEK KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In order to solve the above-mentioned problems, the inventors of the present invention conducted intensive studies and found that by blending a core- A shell-type graft copolymer that can solve the problem of poor appearance caused by the morphology of graft copolymer polymer alloys typified by aromatic polycarbonate resins and ABS resins, thus completing the present invention

Method used

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  • Polycarbonate resin composition with superior appearance
  • Polycarbonate resin composition with superior appearance
  • Polycarbonate resin composition with superior appearance

Examples

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Embodiment 1～19

[0246] Examples 1-19, Comparative Examples 1-10

[0247] According to the compositions shown in Table 1 to Table 3, the mixture is supplied from the first supply port of the extruder, and the mixture is composed of FR-1 (phosphate ester) except E component, D component (reinforcing filler) and B component (ABS- 1. Ingredients other than ABS-2, ABS-3, ABS-4). The mixture is obtained by mixing the following premix of (i) and other ingredients in a V-blender. That is, (i) is a mixture of component F (fluorine-containing anti-dripping agent) and an aromatic polycarbonate component A, wherein the components F and A are added so that the component F content becomes 2.5% by weight Put the mixture in a polyethylene bag and shake the bag as a whole to mix it evenly. When component B (ABS-1, ABS-2, ABS-3, ABS-4) and component D (reinforcing filler) are contained, use a side feeder and supply from the second supply port. Furthermore, when adding FR-1 of E component, in the state of he...

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Abstract

The present invention aims to provide a polycarbonate resin composition has superior impact characteristic and moldability, which does not produce confluence pattern at fusion portion or portion having uneven thickness. 100 parts by weight of the resin composition, relative to 99 to 1 by weight of aromatic polycarbonate resin and 1 to 99 by weight of grafting copolymer, contains 0.1 to 10 parts byweight of core-shell type grafting copolymer, wherein the grafting copolymer contains rubber polymer with 0.20 to 2.0 mu m weight average particle diameter of rubber particle, vinyl cyanogen monomerand aromatic ethylene monomer; the core-shell grafting copolymer is obtained by copolymerization of the mixture of (methyl) acrylate monomer or monomer capable of being copolymerized with (methyl) acrylate monomer by emulsion polymerization, with the existence of diene rubber constituent with 0.30 to 0.50 mu m weight average particle diameter.

Description

technical field [0001] The present invention relates to a polycarbonate resin composition with excellent appearance and its molded article. More specifically, it relates to a resin composition containing a polycarbonate resin and a specific graft copolymer and a specific core-shell type graft copolymer, which not only has unevenness in welds or thickness A resin composition and a molded article thereof having an excellent appearance without causing flow lines in some cases, and also having excellent impact properties and moldability. Background technique [0002] Polymer alloys with graft copolymers represented by aromatic polycarbonate resins and ABS resins have excellent formability and high impact properties, and are therefore widely used in office machines, electrical and electronic machines, and automobiles. Among them, the shells of office machines such as laser printers, copiers, notebook computers or projectors, or electrical and electronic equipment are strongly re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L51/04
Inventor 相原哲也
Owner TEIJIN KASEK KK
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