Metallized films
    2.
    发明授权
    Metallized films 失效
    金属化薄膜

    公开(公告)号:US6033786A

    公开(公告)日:2000-03-07

    申请号:US721146

    申请日:1996-09-26

    IPC分类号: B32B15/08 B32B27/32

    摘要: A biaxially oriented, heat-set, multilayer film includes a core layer, a bonding layer having a surface adhered to the core layer and a flame treated surface opposite the surface adhered to the core layer. A metal coating for providing oxygen and moisture barrier properties deposited on the flame treated surface and a protective plastic film adhered to said metal coating. The core layer and bonding layer either are free of void-creating additives or include only a quantity of such additives that does not create a matte surface adversely affecting the barrier properties of the metal coating. The bonding layer comprising a mixture including 40 to 100% by weight of propylene/butene-1 copolymer containing up to about 14% by weight of butene-1 (PBC), 0 to 60% of an isotactic polypropylene (PP) and 0 to 50% of a copolymer of ethylene and propylene wherein propylene is the predominant component by weight (EPC).

    摘要翻译: 双轴取向的热固性多层膜包括芯层,具有粘附到芯层的表面的粘合层和与粘附到芯层的表面相对的火焰处理表面。 一种金属涂层,用于提供沉积在火焰处理过的表面上的氧气和湿气阻隔性能,以及一个保护性塑料薄膜,附着在所述金属涂层上。 芯层和粘合层既不含空隙产生添加剂,也不包括一定量的这种添加剂,不会产生不利影响金属涂层阻挡性能的无光泽表面。 粘结层包括含有40-100%(重量)含有至多约14%(重量)丁烯-1(PBC),0-60%全同立构聚丙烯(PP)和0- 50%的乙烯和丙烯的共聚物,其中丙烯是主要的重量份(EPC)。