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Polymeric blends containing ethylene vinyl alcohol, films made therefrom e.g. molecularly oriented films, and methods of making such films
Polymeric blends containing ethylene vinyl alcohol, films made therefrom e.g. molecularly oriented films, and methods of making such films
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机译:包含乙烯-乙烯醇的聚合物共混物,由其制得的膜,例如分子取向膜及其制备方法
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摘要
Ethylene vinyl alcohol copolymer (60 - 99 wt.%) is blended with polyetheramide block copolymer (1 to 40 wt.%) to produce a film-forming composition of matter useful in packaging films into which the blended composition can be extruded and/or coextruded with other layer materials. For example, the blend is one layer in a plural layer film, and at least the blend layer is molecularly oriented uniaxially or biaxially by reheating the film after extrusion and stretching it undirectionally or bidirectionally.
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