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Thermoplastic resin composition

A technology of thermoplastic resin and composition, which is applied in the field of thermoplastic resin composition, can solve problems such as limitations, and achieve the effect of improving transparency and excellent basic performance

Active Publication Date: 2020-12-01
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to limitations in transparency, most products have a haze value greater than 2.0, so this method is limited in the application of products using PMMA, PC, SAN, etc., thick injection molded products, or products that require high transparency

Method used

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  • Thermoplastic resin composition
  • Thermoplastic resin composition
  • Thermoplastic resin composition

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0118] Preparation Example 1: Preparation of A-1-1

[0119] 50 parts by weight of ion-exchanged water, 8.8 parts by weight of methyl methacrylate, 3 parts by weight of styrene, 0.8 parts by weight of acrylonitrile, 0.1 parts by weight of divinylbenzene as a crosslinking agent, 0.2 parts by weight of Cumene hydroperoxide as an initiator and 0.5 parts by weight of sodium alkylarylsulfonate (sodium dodecylbenzenesulfonate) as an emulsifier are added to 50 parts by weight of polybutadiene latex (polymerization Method: emulsion polymerization, gel content: 90%, average particle diameter: 0.12 μm), mixing for 5 hours, and then polymerizing, while continuously adding 26.2 parts by weight of methyl methacrylate at a predetermined rate at 70° C. for 5 hours , 9 parts by weight of styrene, 2.2 parts by weight of acrylonitrile, 0.5 parts by weight of tertiary dodecyl mercaptan as a molecular weight control agent, 0.05 parts by weight of ethylenediamine tetraacetate, 0.1 parts by weight o...

preparation Embodiment 2

[0120] Preparation Example 2: Preparation of A-2-1

[0121] 50 parts by weight of ion-exchanged water, 8.8 parts by weight of methyl methacrylate, 3 parts by weight of styrene, 0.8 parts by weight of acrylonitrile, 0.1 parts by weight of divinylbenzene as a crosslinking agent, 0.2 parts by weight of Cumene hydroperoxide as an initiator and 0.5 parts by weight of sodium alkylarylsulfonate (sodium dodecylbenzenesulfonate) as an emulsifier are added to 50 parts by weight of polybutadiene latex (polymerization Method: Emulsion polymerization, gel content: 70%, average particle size: 0.3 μm), mixing for 3 hours, and then polymerization, while continuously adding 26.2 parts by weight of methyl methacrylate at a predetermined rate at 70° C. for 5 hours , 9 parts by weight of styrene, 2.2 parts by weight of acrylonitrile, 0.5 parts by weight of tertiary dodecyl mercaptan as a molecular weight control agent, 0.05 parts by weight of ethylenediamine tetraacetate, 0.1 parts by weight of f...

preparation Embodiment 3

[0122] Preparation Example 3: Preparation of A-2-2

[0123] 50 parts by weight of ion-exchanged water, 7.5 parts by weight of methyl methacrylate, 4.8 parts by weight of styrene, 0.8 parts by weight of acrylonitrile, 0.1 parts by weight of divinylbenzene as a crosslinking agent, 0.2 parts by weight of Cumene hydroperoxide as an initiator and 0.5 parts by weight of sodium alkylarylsulfonate (sodium dodecylbenzenesulfonate) as an emulsifier are added to 50 parts by weight of polybutadiene latex (polymerization Method: Emulsion polymerization, gel content: 70%, average particle size: 0.3 μm), mixing for 3 hours, and then polymerizing, while continuously adding 22.3 parts by weight of methyl methacrylate at a predetermined rate at 70° C. for 5 hours , 14.4 parts by weight of styrene, 2.2 parts by weight of acrylonitrile, 0.5 parts by weight of tertiary dodecyl mercaptan as a molecular weight control agent, 0.05 parts by weight of ethylenediamine tetraacetate, 0.1 parts by weight o...

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Abstract

The present invention relates to a thermoplastic resin composition which exhibits excellent transparency, impact resistance and fluidity and comprises: A-1) a first copolymer comprising a first conjugated diene polymer having an average particle diameter of 0.05 to 0.2 [mu]m, an alkyl (meth)acrylate monomer unit and an aromatic vinyl monomer unit; A-2) a second copolymer comprising a second conjugated diene polymer having an average particle diameter of 0.23 to 0.5 [mu]m, an alkyl (meth)acrylate monomer unit and an aromatic vinyl monomer unit; B) a third copolymer comprising an alkyl (meth)acrylate monomer unit and an aromatic vinyl monomer unit; and C) 0.3 to 5 wt% of a plasticizer having a viscosity of 700 to 10,000 cP.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims the priority and rights of Korean Patent Application No. 10-2018-0106052 filed on September 5, 2018 and Korean Patent Application No. 10-2019-0108784 filed on September 03, 2019, both of which The disclosure content of this patent application is fully incorporated in this specification by reference. technical field [0003] The present invention relates to a thermoplastic resin composition, and more particularly, to a thermoplastic resin composition having remarkably improved transparency while maintaining essential properties. Background technique [0004] With the development of industry and diversification of life in recent years, many studies have been conducted to impart high functionality such as transparency to materials to differentiate product types. For example, intensive research has been conducted to further impart transparency to product materials such as the li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/08C08K5/11C08F279/04C08F279/06C08K5/00C08K5/092C08L51/04C08L25/14
CPCC08L2207/53C08L2205/22C08F285/00C08F220/14C08L33/12C08L51/003C08L2205/025C08L2205/035C08F279/02C08L33/18C08F212/08C08F220/44C08L51/04C08L67/02C08F212/36C08L9/00C08L2205/03C08L33/08C08L25/14C08K5/11C08F279/04C08F279/06C08K5/0016C08K5/092
Inventor 崔正洙俞根勋李元锡李如达李宗周
Owner LG CHEM LTD