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SEALABLE, BIAXIALLY ORIENTED POLYPROPYLENE FILM WITH IMPROVED BARRIER PROPERTIES AND A PROCESS FOR THE PRODUCTION OF THE POLYPROPYLENE FILM AND THE USE THEREOF
SEALABLE, BIAXIALLY ORIENTED POLYPROPYLENE FILM WITH IMPROVED BARRIER PROPERTIES AND A PROCESS FOR THE PRODUCTION OF THE POLYPROPYLENE FILM AND THE USE THEREOF
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机译:具有改善的阻隔性能的可密封的,双轴取向的聚丙烯薄膜,及其制备方法和用途
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摘要
The invention relates to a multi-layer, sealable biaxially oriented polypropylene film consisting of a base layer and at least one sealable covering layer. The base layer contains between 1 and 15 weight % of a resin with a mean molecular weight Mw of between 600 and 1,500 and between 1 and 6 weight % of a wax with a mean molecular weight Mn of between 200 and 700. The n-heptane insoluble part of the polypropylene of the base layer has a chain isotactic index of at least 95%, as measured by 13C-NMR spectroscopy. The invention also relates to a method for producing said film and to its use.
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