Metallocene Catalyst System for Preparation of LLDPE Copolymers with Tear Resistance and Low Haze

摘要

Density from 0.908 g/cm 3 to 0.925 g/cm 3 , melt index from 0.5 g/10 min to 3 g/10 min, Mw/Mn ratio from 2 to 4, Mz/Mw ratio from 1.6 to 2.3, 0.45 An ethylene polymer having an ATREF profile characterized by a CY-a parameter of to 0.6, a single peak at a peak ATREF temperature of 76°C to 88°C, and less than 4.5 wt% polymer eluting at a temperature greater than 91°C. These ethylene polymers can be used to make a variety of articles of manufacture, such as blown and cast films having the beneficial combination of high tear resistance and low haze.