Easy to open package and a method of making same
    4.
    发明授权
    Easy to open package and a method of making same 失效
    易于打开的包装及其制作方法

    公开(公告)号:US4680340A

    公开(公告)日:1987-07-14

    申请号:US803032

    申请日:1985-11-29

    摘要: A seal layer for an easy open package consisting essentially of 40% or less, by weight, of a first polymer having a melt flow index of less than 5 selected from the group consisting of ionomers and ethylene-vinyl acetate copolymers, and 60% or more by weight of a second polymer having a melt flow index greater than 20 being selected from the group consisting of low density polyethylene, ethylene-vinyl acetate copolymers, and modified ethylene-vinyl acetate copolymers, whereby the second polymer is a low density polyethylene if the first polymer is an ethylene-vinyl acetate copolymer.

    摘要翻译: 用于容易开封的密封层,其基本上由40重量%或更少(重量)的熔体流动指数小于5的第一聚合物组成,所述第一聚合物选自离聚物和乙烯 - 乙酸乙烯酯共聚物,以及60%或 更多的具有大于20的熔体流动指数的第二聚合物选自低密度聚乙烯,乙烯 - 乙酸乙烯酯共聚物和改性的乙烯 - 乙酸乙烯酯共聚物,其中第二聚合物是低密度聚乙烯,如果 第一聚合物是乙烯 - 乙酸乙烯酯共聚物。