公开(公告)号：US20150284523A1

公开(公告)日：2015-10-08

申请号：US14443435

申请日：2013-11-19

申请人： Mridula KAPUR ,  Jian WANG ,  Yajian LIN ,  Troy TAMBLING ,  Robert REIB ,  DOW GLOBAL TECHNOLOGIES LLC

发明人： Mridula Kapur ,  Jian Wang ,  Yijian Lin ,  Troy M. Tambling ,  Robert N. Reib

IPC分类号： C08J5/18

CPC分类号： C08J5/18 ,  C08J2323/08 ,  C08L23/0807

摘要： The instant invention provides a polyethylene composition suitable for film applications and film made therefrom. The linear low density polyethylene composition suitable for 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 0.890 to 0.915 g/cm3, a molecular weight distribution (Mw/Mn) in the range of from 2.5 to 4.5, a melt index (12) in the range of from 2 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薄膜应用的聚乙烯组合物和由其制成的薄膜。 适用于根据本发明的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0.890至0.915g / cm3，分子量分布（Mw / Mn）在2.5至4.5的范围内，熔体指数（12）在 2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。