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Thermoplastic polymer composition having barrier properties, sheet or film, laminate structure, packaging material, container and packing for a container
Thermoplastic polymer composition having barrier properties, sheet or film, laminate structure, packaging material, container and packing for a container
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机译:具有阻隔性能的热塑性聚合物组合物,片或膜,层压结构,包装材料,容器以及用于容器的包装
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摘要
The present invention provides a thermoplastic polymer composition which is obtained through dynamic vulcanization performed by mixing an ethylene-vinyl alcohol copolymer (I), a modified block copolymer (II) which comprises an aromatic vinyl polymer block and a conjugated diene polymer block and which has a functional group consisting of a carboxyl group and/or its derivative, and an amine crosslinking agent (III), wherein the ethylene-vinyl alcohol copolymer (I) has an ethylene content of from 10 to 60 mole% and has a melt flow rate of from 1 to 20 g/10 minutes, and the amount of the functional group consisting of a carboxyl group and/or its derivative which the modified block copolymer (II) has is from 2 to 20 groups per molecule. The thermoplastic polymer composition is excellent in both barrier properties to gases, organic liquids and the like and flexibility.
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