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Alkyl (meth)acrylate-based thermoplastic resin composition and thermoplastic resin having adjusted scratch resistance and yellowness

一种丙烯酸烷基酯、热塑性树脂的技术,应用在基于(甲基)丙烯酸烷基酯的热塑性树脂组合物和具有调节的耐划伤性和泛黄度的热塑性树脂领域,能够解决低冲击强度和注塑性能、低耐化学性和耐划伤性等问题,达到高光泽度、低泛黄度的效果

Active Publication Date: 2013-12-25
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although PC resin has high transparency and excellent impact strength, it has low chemical resistance and scratch resistance
[0007] In addition, although polymethyl methacrylate (PMMA) resin has high transparency, it has low impact strength and injection molding properties

Method used

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  • Alkyl (meth)acrylate-based thermoplastic resin composition and thermoplastic resin having adjusted scratch resistance and yellowness
  • Alkyl (meth)acrylate-based thermoplastic resin composition and thermoplastic resin having adjusted scratch resistance and yellowness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] (a) Preparation of graft copolymer

[0064] (i) Preparation of small particle size rubber polymer

[0065] 45 parts by weight of 1,3-butadiene, potassium rosinate of 1.2 parts by weight, potassium oleate of 1.5 parts by weight, sodium carbonate (Na 2 CO 3 ), 0.5 parts by weight of potassium bicarbonate (KHCO 3 ), 0.3 parts by weight of tert-dodecanemercaptan and 100 parts by weight of ion-exchanged water were simultaneously added to a polymerization reactor (autoclave) purged with nitrogen, and the temperature of the reactor was raised to 55°C. Then, 0.3 parts by weight of potassium persulfate was added to the reactor to initiate a reaction.

[0066] After the reaction was performed for 10 hours, 0.05 parts by weight of t-dodecylmercaptan was further added thereto. The reaction was continued at 65° C. for 8 hours to terminate, and a rubber polymer with a small particle size was obtained.

[0067] The prepared small particle rubber polymer had a gel content of 90%, ...

Embodiment 2

[0082] The procedure was carried out in the same manner as in Example 1, except that 15 wt% of the graft copolymer and 85 wt% of the bulk polymer were used.

Embodiment 3

[0084] Except using 20wt% graft copolymer and 80wt% bulk polymer, it was carried out in the same manner as Example 1.

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Abstract

The present invention relates to an alkyl (meth)acrylate-based thermoplastic resin composition, and to a thermoplastic resin having adjusted scratch resistance and yellowness. More particularly, the total content of vinyl cyanide-based monomers contained within the resin composition is lowered to a level which could not be achieved in conventional technologies and the content of alkyl(meth)acrylate-based monomers is increased while maintaining transparency, flowability, and impact strength and improving scratch resistance and lowering yellowness. More particularly, the alkyl (meth)acrylate-based thermoplastic resin composition and thermoplastic resin according to the present invention have superior impact resistance and transparency and low yellowness. More particularly, the alkyl (meth)acrylate-based thermoplastic resin composition and the thermoplastic resin according to the present invention have high surface hardness and high transparency similar to glass, and therefore are suitable for use in a transparent housing of an electric or electronic product.

Description

technical field [0001] The present invention relates to a thermoplastic resin composition based on an alkyl (meth)acrylate and a thermoplastic resin having high scratch resistance and low yellowing, more particularly, to a thermoplastic resin composition based on an alkyl (meth)acrylate Thermoplastic resin composition of ester and thermoplastic resin obtained therefrom, when maintaining transparency, fluidity by reducing the total content of vinyl cyano-based monomers contained in the resin composition to a level impossible to achieve by conventional techniques The alkyl (meth)acrylate-based thermoplastic resin composition can provide improved scratch resistance and low yellowing while improving performance and impact strength, thereby being suitable for housings of electric and electronic products. Background technique [0002] Acrylonitrile-butadiene-styrene (ABS) resin is a highly functional and general-purpose resin containing acrylonitrile, butadiene and styrene widely ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L33/04C08L55/02C08F279/04
CPCC08L51/04C08F279/02C08L33/16C08F279/04C08L55/02C08L33/12C08F220/14C08L33/04C08F220/10
Inventor 梁玄锡李大雨刘翰钟韩昌薰金成龙
Owner LG CHEM LTD
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