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Antistatic styrenic polymer compositions and articles therefrom

A technology of styrene polymers and compositions, which can be used in transportation, packaging, thin material handling, etc., and can solve the problems of reduced mechanical properties, fragility, and low impact strength, etc.

Inactive Publication Date: 2012-10-31
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although compositions comprising potassium ionomers with or without polyols have acceptable antistatic properties, such compositions have reduced mechanical properties, including low impact strength, such that any Products are fragile

Method used

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  • Antistatic styrenic polymer compositions and articles therefrom

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Embodiment

[0028] According to the invention, the polymer composition is prepared using:

[0029] Acrylonitrile Butadiene Styrene (ABS) : P2H-AT 792 from LANXESSAG.

[0030] KI (potassium ionomer) : Entira TM AS, available from DuPont, is an E / X / Y potassium ionomer, where E is ethylene, X is methacrylic acid (14.9% by weight), and Y is methyl acrylate (0.9% by weight); using K ions partially neutralized the mixed acid to 84.8%. MFI (melt flow index, measured at 190° C. and 2.16 kg) was 1.

[0031] KI-G : Available from Mitsui DuPont Poly Chemical Co., Ltd. It is a premix of glycerol and potassium ionomer consisting of (a) potassium ionomer consisting of E / X potassium ionomer, where E is ethylene and X is methacrylic acid (12.5% ​​by weight ), the acid moiety is neutralized to 82% with potassium ions; and (b) a glycerol composition of 5% by weight. The MFI is 1.

[0032] KI-DG : a premix of diglycerol and potassium ionomer, prepared from (a) with the above-mentioned Entira...

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Abstract

The invention discloses an antistatic styrenic polymer composition. The antistatic styrenic polymer composition comprises 30 to 70 wt % of a styrenic polymer, 5 to 40 wt % of a potassium ionomer, 1 to10 wt % of one or more polyols, and 2 to 20 wt % of an ethylene copolymer, based on the total weight of the styrenic polymer composition which, if compared with compositions of the state of the art,shows reduced dust absorption and improved mechanical performances. Also disclosed are articles made of the composition such as film or sheet including multilayer structure and items obtained by extrusion molding, coextrusion molding, injection molding, thermoform molding, compression molding or blow molding.

Description

[0001] This invention relates to antistatic polymer compositions, methods of making them, and articles made therefrom. Background of the invention [0002] Styrenic polymers, especially acrylonitrile butadiene styrene (ABS) based polymers, are used in a wide variety of applications such as in the manufacture of lightweight, rigid, molded products including luggage, appliances, and telephones Housings, tubes, golf clubs, sports helmets, auto parts, wheel covers, hoods, head protection, cosmetic cases, and toys. In general, polymer-based moldings are prone to static electricity and often absorb airborne dust during storage, transportation, and use. [0003] A common method of improving the antistatic properties of thermoplastics involves the use of internal antistatic agents, which are incorporated by mixing or extrusion prior to or during the manufacture of the article, for example using molding or film forming methods into thermoplastic polymer materials. Such antistatic age...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L55/02C08L23/08C08L25/12C08F279/04C08K5/05
CPCC08L25/12C08L23/0876C08F279/04C08L55/02C08L23/0807C08K5/053Y10T428/31938C08L2666/06C08L2666/02C08L2666/04
Inventor K·豪斯曼C·特雷尔茨施
Owner EI DU PONT DE NEMOURS & CO
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