Thermoplastic abs resin composition with improved impact resistance, dimensional stability and blow molding property

An ABS resin, thermoplastic technology, applied in the field of thermoplastic ABS resin composition, can solve problems such as limitations

Active Publication Date: 2007-10-31
LOTTE ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although N-substituted maleimide copolymers endow improved heat resistance and low linear thermal expansion coefficient, the use of N-substituted maleimides does not provide sufficient impact resistance, so this application is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0067] The ingredients shown in Table 1 were mixed, and the mixture was extruded and pelletized by a twin-screw extruder having L / D=29 and Φ=45 mm. The barrel temperature of the extruder was maintained at 250°C. Test specimens were prepared for flow and physical properties. A sample for measuring the coefficient of linear thermal expansion is made into a size of 1.0 x 1.0 x 0.6 cm. The specimens were stretched biaxially to examine strain hardening and to compare elongation.

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Abstract

The thermoplastic ABS resin composition according to the present invention comprises (a) 2 to 25 parts by weight of a graft copolymer particle containing rubbers having a volume average particle diameter range from 0.05 D to less than 0.18 D; (b) 2 to 25 parts by weight of a graft copolymer particle containing rubbers having a volume average particle diameter range from 0.18 D to less than 0.4 D; (c) 2 to 18 parts by weight of a graft copolymer particle containing rubbers having a volume average particle diameter range from 0.4 D to less than 4 D; (d) 10 to 70 parts by weight of a branched vinyl cyanide- vinyl aromatic copolymer; and (e) 1 to 60 parts by weight of a long-chain linear vinyl cyanide- vinyl aromatic copolymer.

Description

technical field [0001] The present invention relates to a thermoplastic resin composition having improved impact resistance, dimensional stability and heat resistance and excellent extrusion and blow molding properties. More specifically, the present invention relates to a thermoplastic ABS resin composition comprising graft copolymer particles of rubber having different particle size ranges and two kinds of vinyl cyanide-vinyl aromatic copolymers. Background technique [0002] Recently, thermoplastic acrylonitrile-butadiene-styrene (hereinafter ABS) resins have been used as materials for electric / electronic equipment, automobile parts and the like. The requirements that the material must meet include heat resistance, mechanical strength and dimensional stability. In particular, these materials further require high melt modulus and elongation and should not cause a parison draw-down phenomenon when the resin is molded by an extrusion or blow molding process. [0003] Incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F279/04C08L25/12C08L51/04
CPCC08L25/12C08F279/04C08L55/02C08L33/18C08L51/04C08F279/02C08L2666/24C08L2666/02
Inventor 金邦德梁在浩金兑昱
Owner LOTTE ADVANCED MATERIALS CO LTD
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