Film
    3.
    发明授权
    Film 失效
    电影

    公开(公告)号:US06723446B2

    公开(公告)日:2004-04-20

    申请号:US10258608

    申请日:2002-11-05

    IPC分类号: B32B2732

    摘要: The present invention provides a wrap film or shrink film formed from a resin composition containing [I] a propylene polymer in an amount of 1 to 99 mass %, and [II] an olefin-based polymer in an amount of 99 to 1 mass %, wherein [I] the propylene polymer satisfies the following requirements of: (1) a meso pentad fraction (mmmm) is 0.2 to 0.6, and (2) a racemic pentad fraction (rrrr) and (1−mmmm) satisfy the following relation: [rrrr/(1−mmmm)]≦0.1. The wrap film or shrink film exhibits excellent characteristics, and does not generate a toxic gas derived from chlorine, such as hydrogen chloride gas or dioxin, when being incinerated.

    摘要翻译: 本发明提供由含有1〜99质量%的丙烯聚合物的[I]和[II] 99〜1质量%的烯烃类聚合物的树脂组合物形成的保鲜膜或收缩膜, 其中[I]丙烯聚合物满足以下要求:(1)内消旋五单元组分(mmmm)为0.2〜0.6,(2)外消旋五单元组分(rrrr)和(1-mmmm)满足以下关系式 :[rrrr /(1-mmmm)] <= 0.1。 保鲜膜或收缩膜显示出优异的特性,并且在被焚烧时不会产生由氯气产生的有毒气体,例如氯化氢气体或二恶英。