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    • 9. 发明申请
    • METALLIZED FILMS
    • 金属膜
    • WO2008112322A3
    • 2008-12-24
    • PCT/US2008003525
    • 2008-03-17
    • DU PONTTROUILHET YVES M
    • TROUILHET YVES M
    • B32B27/04B32B27/32
    • B32B7/04B32B27/28Y10T428/1334Y10T428/24612Y10T428/24843Y10T428/31692
    • Provided herein are multilayer film structures that may be used in packaging applications, for example. The multilayer film structures include a first metallized thermoplastic film and a second thermoplastic film. These first and second films are joined directly to each other over at least a portion of their surface area to form a laminate having the structure "first thermoplastic film/metallic layer/second thermoplastic film". The thermoplastic layers of the films may be the same or different and comprise one or more ethylene acid copolymers or ionomers thereof. The first metallized thermoplastic film has an optical density of 3 or less. When the first metallized thermoplastic film and the second thermoplastic film are joined by heat sealing to form the structure "thermoplastic film/metallic layer/ thermoplastic film", its internal seal strength is at least about 4 N/15 mm.
    • 例如,本文提供可用于包装应用中的多层膜结构。 多层膜结构包括第一金属化热塑性膜和第二热塑性膜。 这些第一和第二膜在它们的表面积的至少一部分上彼此直接接合,以形成具有“第一热塑性薄膜/金属层/第二热塑性薄膜”结构的层压体。 膜的热塑性层可以相同或不同,并且包含一种或多种乙烯酸共聚物或其离聚物。 第一金属化热塑性膜的光密度为3以下。 当通过热密封将第一金属化热塑性膜和第二热塑性膜接合以形成“热塑性膜/金属层/热塑性膜”结构时,其内部密封强度为至少约4N / 15mm。