POLYETHYLENE COMPOSITION SUITABLE FOR STRETCH FILM APPLICATIONS, AND METHOD OF PRODUCING THE SAME
    3.
    发明申请
    POLYETHYLENE COMPOSITION SUITABLE FOR STRETCH FILM APPLICATIONS, AND METHOD OF PRODUCING THE SAME 审中-公开
    适用于拉伸膜应用的聚乙烯组合物及其制造方法

    公开(公告)号:US20150240000A1

    公开(公告)日:2015-08-27

    申请号:US14432219

    申请日:2013-10-01

    IPC分类号: C08F110/02 C08J5/18 C08L23/06

    摘要: The instant invention provides a polyethylene composition suitable for stretch film applications and, method of producing the same, and cast film made therefrom. The linear low density polyethylene composition suitable for stretch film applications according to the present invention comprises: less than or equal to 100 percent by weight of the units derived from ethylene; and less than 35 percent by weight of units derived from one or more α-olefin comonomers; wherein said linear low density polyethylene composition has a density in the range of from 0.900 to 0.930 g/cm3, a molecular weight distribution (Mw/Mn) in the range of from 2.5 to 4.5, a melt index (I2) in the range of from 0.3 to 10 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of from 2.2 to 3, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of said composition, and a zero shear viscosity ratio (ZSVR) in the range from 1 to 1.2.

    摘要翻译: 本发明提供了适用于拉伸膜应用的聚乙烯组合物及其制备方法,以及由其制成的流延薄膜。 适用于根据本发明的拉伸膜应用的线性低密度聚乙烯组合物包含:小于或等于100重量%的衍生自乙烯的单元; 和少于35重量%的衍生自一种或多种α-烯烃共聚单体的单元; 其中所述线性低密度聚乙烯组合物的密度范围为0.900-0.930g / cm3,分子量分布(Mw / Mn)在2.5-4.5范围内,熔体指数(I2)在 0.3至10g / 10分钟,存在于所述组合物的骨架中的每1000个碳原子的分子量分布(Mz / Mw)在2.2至3的范围内,乙烯基不饱和度小于0.1个乙烯基,并且零 剪切粘度比(ZSVR)在1〜1​​.2的范围内。