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Styrene-based copolymer and thermoplastic resin composition including the same

A technology of styrenes and copolymers, which is applied in the field of thermoplastic resin compositions, and can solve problems such as increased cost and poor impact strength

Active Publication Date: 2015-06-10
LOTTE ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this low-gloss resin has a problem of being inferior in terms of impact strength and the like due to the need for an excessive amount of matting agent, and since corrosion molding (corrosion molding) should be used, the cost for the method increases

Method used

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  • Styrene-based copolymer and thermoplastic resin composition including the same
  • Styrene-based copolymer and thermoplastic resin composition including the same
  • Styrene-based copolymer and thermoplastic resin composition including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] As described in the composition shown in the following Table 1 (unit: parts by weight) with the above-mentioned components, based on 100 parts by weight of a single composition containing 71 wt% of styrene (A) and 29 wt% of acrylonitrile (B) Body mixture, about 0.2 parts by weight of tert-dodecyl mercaptan (TDM), about 0.2 parts by weight of azobisisobutyronitrile (AIBN) and about 0.5 parts by weight of 1,3,5,7-tetramethyl- 1,3,5,7-Tetravinyl-cyclotetrasiloxane (C) was charged into a reactor, followed by suspension polymerization to prepare a copolymer. The copolymer was washed, dehydrated, dried at about 80° C. for about 48 hours, and extruded at a barrel temperature of about 250° C. by a twin-screw extruder having a T die installed therein to prepare a sheet form having a thickness of about 1 mm samples for evaluation of physical properties. Glass transition temperature, gloss and surface roughness properties were evaluated by the prepared flakes, and the results the...

Embodiment 2

[0112] Except using about 1 part by weight of 1,3,5,7-tetramethyl-1,3,5,7-tetravinyl-cyclotetrasiloxane (C), by the same method as in Example 1 Example 2.

Embodiment 3

[0114] Except using about 2 parts by weight of 1,3,5,7-tetramethyl-1,3,5,7-tetravinyl-cyclotetrasiloxane (C), by the same method as in Example 1 Example 3.

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Abstract

Provided are a styrene-based copolymer prepared from a mixture including (A) an aromatic vinyl-based compound, (B) an unsaturated nitrile-based compound, and (C) a silicone-based compound having two or more unsaturated reactive groups to thereby be capable of implementing a uniform and excellent low gloss property with minimal or no deterioration of physical properties such as impact resistance, heat resistance, and the like, and a thermoplastic resin composition including the same.

Description

technical field [0001] The present invention relates to a styrene-based (styrene-based) copolymer and a thermoplastic resin composition comprising the same. More specifically, the present invention relates to the ability to achieve uniform and excellent low gloss (matte, low gloss) properties with minimal or A styrenic copolymer free from deterioration of physical properties such as impact resistance, heat resistance, etc., and relates to a thermoplastic resin composition comprising the same. Background technique [0002] Thermoplastic resins have low specific gravity compared with glass or metal, and excellent mechanical physical properties such as moldability, impact resistance, and the like. Accordingly, plastic products made of thermoplastic resins are rapidly replacing existing glass or metal in electrical and electronic products, automotive components, and the like. [0003] For aesthetic and anti-glare reasons, more attention has been paid to low-gloss resins. In a...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F220/44C08F230/08C08F2/18C08F2/38C08L25/12C08L55/02
CPCC08F212/08C08F212/10C08F230/08C08L25/12C08F220/44C08L25/08C08L33/18C08L33/20
Inventor 金宝恩张柱贤许宰源朴广树纳塔拉詹·森蒂尔库马尔金一镇吴俊成
Owner LOTTE ADVANCED MATERIALS CO LTD