polyethylene blending composition suitable for blown film, blown film, article and container device

摘要

Summary "Blown film, blown film, article and container device suitable polyethylene blending composition" The present invention provides a polyethylene blending composition suitable for blown (expanded) films and films made therewith. the blown film polyethylene blending composition comprises the melt blended product of: (a) from 0.5 to 4 weight percent of a low density polyethylene having a density in the range of 0.915 to 0.935 g / cm3, and a melt index (i2) in the range of 0.8 to less than or equal to 5 g / 10 min, and a molecular weight distribution (mw / mn) in the range of 6 to 10; (b) an amount greater than or equal to 90 weight percent of an ethylene / α-olefin interpolymer composition having a comonomer distribution constant (cdc) in the range 75 to 200, a vinyl unsaturation of less than 0.15 per 1000 carbon atoms present in the main chain of the ethylene-based polymer composition, a zero shear viscosity ratio (zsvr) in the range of 2 to 20, a density in the range of 0.903 to 0.950 g / cm3, an index of fusion (i2) in the range 0.1 to 5 g / 10 min, a molecular weight distribution (mw / mn) in the range 1.8 to 3.5; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; and (e) optionally one or more antioxidants. 1/1