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Thermoplastic resin composition having excellent chemical resistance and transparency, method for preparing same, and molded product comprising same

一种热塑性树脂、组合物的技术，应用在热塑性树脂组合物领域，能够解决使用ABS类树脂限制、耐化学性不足、医疗产品应用限制等问题

Active Publication Date: 2016-06-08
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when these methods are used, they show poor chemical resistance due to the introduction of alkyl methacrylates for transparency
Therefore, the chemical resistance required for medical products is insufficient, and its application to medical products is limited
Additionally, acrylonitrile residues should not be detectable when resins containing acrylonitrile are used in medical products or food containers
However, acrylonitrile residues are often detected in transparent ABS-based resins prepared according to the above-mentioned method, so the use of ABS-based resins in medical products is limited

Method used

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  • Thermoplastic resin composition having excellent chemical resistance and transparency, method for preparing same, and molded product comprising same
  • Thermoplastic resin composition having excellent chemical resistance and transparency, method for preparing same, and molded product comprising same
  • Thermoplastic resin composition having excellent chemical resistance and transparency, method for preparing same, and molded product comprising same

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment A-1

[0088] Preparation Example A-1: ​​Graft Copolymer Preparation-1

[0089] In order to prepare the graft copolymer, 100 parts by weight of ion-exchanged water, 1.0 parts by weight of sodium oleate as an emulsifier, 35 parts by weight of methyl methacrylate, 12 parts by weight of styrene, and 3 parts by weight of propylene Nitrile, the tert-dodecyl mercaptan of 0.3 parts by weight, the ethylenediaminetetraacetic acid of 0.05 parts by weight, the sodium formaldehyde sulfoxylate of 0.1 parts by weight, the ferrous sulfate of 0.001 parts by weight and the tertiary hydroperoxide of 0.2 parts by weight Butyl was continuously added to 50 parts by weight (based on solid content) of polybutadiene rubber latex containing 70% by weight of gel and having an average particle diameter of 0.3 μm prepared by emulsion polymerization, and the reaction was allowed to proceed at 75° C. 5 hours. Next, the temperature was raised to 80° C. and aged for 1 hour, and then the reaction was terminated. ...

preparation Embodiment A-2

[0090] Preparation Example A-2: Graft Copolymer Preparation-2

[0091] Graft copolymer was prepared in the same manner as in Preparation Example A-1, except that 18 parts by weight of rubber latex was used instead of 50 parts by weight of rubber latex, and 58.5 parts by weight of methyl methacrylate replaced 35 parts by weight of methyl methacrylate, and 20.5 parts by weight of styrene instead of 12 parts by weight of styrene. The refractive index of the obtained graft copolymer was 1.516, and the weight average molecular weight was 170,000 g / mol.

preparation Embodiment A-3

[0092] Preparation Example A-3: Graft Copolymer Preparation-3

[0093] The graft copolymer was prepared in the same manner as in Preparation Example A-1, except that 29.8 parts by weight of methyl methacrylate was used instead of 35 parts by weight of methyl methacrylate, and 19.2 parts by weight of styrene was used instead of 12 parts by weight of styrene. The refractive index of the obtained graft copolymer was 1.53, and the weight average molecular weight was 150,000 g / mol.

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Abstract

The present invention relates to a transparent resin composition which has excellent chemical resistance and transparency and is usable for medical purposes and food containers, a method for preparing the same, and a molded product manufactured therefrom and, specifically, to a transparent thermoplastic resin composition having excellent chemical resistance and transparency, a method for preparing the same, and a molded product manufactured therefrom, wherein the resin composition contains: (A) a graft copolymer obtained by graft-copolymerizing, onto a) conjugated diene rubber latex, b) a methacrylic acid alkyl ester compound or an acrylic acid alkyl ester compound, c) an aromatic vinyl compound, and d) a vinyl cyan compound; (B) a copolymer resin obtained by copolymerizing i) a methacrylic acid alkyl ester compound or an acrylic acid alkyl ester compound, ii) an aromatic vinyl compound, and iii) a vinyl cyan compound; and (C) a polyether-amide bloc copolymer.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims the benefit of priority of Korean Patent Application No. 10-2014-0132857 and Korean Patent Application No. 10-2015-0078514 filed with the Korean Intellectual Property Office on October 2, 2014 and June 3, 2015 , the entire disclosure of which is incorporated herein by reference. [0003] The present invention relates to a thermoplastic resin composition having excellent chemical resistance and transparency, a method for producing the composition, and a molded article comprising the composition. More particularly, the present invention relates to a transparent thermoplastic resin composition having an excellent balance of properties with excellent chemical resistance and transparency, a method for producing the composition, and a molded article comprising the composition It is non-toxic and can be used in food storage containers and medical products because it does not contain har...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L25/14C08L77/00C08G69/40C08F2/44C08F2/02C08F279/02C08L33/04C08J5/00
CPCC08F279/02C08G69/40C08L33/04C08L77/00C08L33/12C08L55/02C08L2205/03C08L51/04C08L77/12C08L25/12C08L25/14C08L33/20C08L51/003C08L2201/08C08L2205/06
Inventor 崔正洙金豪焄朴相厚俞根勋李如达李元锡张石球
Owner LG CHEM LTD
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