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Barrier films based on blends of polypropylene and ethylene-vinyl alcohol copolymer
Barrier films based on blends of polypropylene and ethylene-vinyl alcohol copolymer
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机译:基于聚丙烯和乙烯-乙烯醇共聚物的共混物的阻隔膜
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摘要
Oriented films of polypropylene and ethylene-vinyl alcohol copolymer are disclosed wherein the ethylene content of the copolymer is from about 40 to 50 mole %. The films are characterized by an improved oxygen transmission rate. Films are readily drawn to 6× by 6×. Films also exhibit improved resistance to transmission helium gas.
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