| 摘要 |
<p>The instant invention provides a polyolefin blend composition suitable for film applications, and films made therefrom. The polyolefin blend suitable for film applications according to the present invention comprises: (a) a linear low density polyethylene composition comprising: (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 35 percent by weight of units derived from one or more ?-olefin comonomers; wherein said linear low density polyethylene composition has a density in the range of 0.905 to 0.925 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 2.5 to 4.5, a melt index (I2) in the range of 0.1 to 3 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; and (b) from 10 to 30 percent by weight of a low density polyethylene composition having a density in the range of 0.915 to 0.930 g/cm3, a melt index (I2) in the range of 0.1 to 5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of 6 to 10.</p> |
