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Films with good barrier properties as well as good physical characteristics
Films with good barrier properties as well as good physical characteristics
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机译：具有良好阻隔性能和良好物理特性的薄膜
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摘要
The present invention relates to a monolayer film comprising a mixture of a first linear polyethylene having a density in the range of from 0.926 to 0.970 g/cm3; a second LLDPE having a density in the range of from 0.868 to 0.920 g/cm3; and a nucleating agent to get to a better balance of low WVTR and dart while still allowing film production from it on standard monolayer equipment without need for co-extrusion capability. The LLDPE with the higher density is further characterized by having at least 57 percent (by weight of that component) of molecules having a weight average molecular weight in the range of 31,000 g/mole to 1,000,000 g/mole. These components are blended in various ratios ranging from 50 to 90% of the higher density LLDPE, 10 to 50% of the lower density LLDPE and at least 50 ppm of the nucleating agent.
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机译：单层膜技术领域本发明涉及一种单层膜，其包含密度为0.926至0.970g / cm 3的第一线性聚乙烯的混合物。第二LLDPE，其密度为0.868至0.920g / cm 3;以及一种成核剂，可以更好地平衡低WVTR和飞镖，同时仍允许在标准单层设备上用其制膜，而无需共挤出能力。具有较高密度的LLDPE的特征还在于具有至少57％（按该组分的重量计）的重均分子量为31,000g / mol至1,000,000g / mol的分子。这些组分以高密度LLDPE的50％至90％，低密度LLDPE的10％至50％以及成核剂至少50 ppm的各种比例混合。
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