Dual catalyst system for producing LLDPE copolymers with improved processability

An ethylene polymer having:

• a density in a range from about 0.89 to about 0.93 g/cm3;
• a ratio of Mw/Mn in a range from about 3 to about 6.5;
• a Mz in a range from about 200,000 to about 650,000 g/mol;
• a CY-a parameter at 190° C. in a range from about 0.2 to about 0.4;
• a number of short chain branches (SCB's) per 1000 total carbon atoms of the polymer at Mz that is greater than at Mn;
• and
• the following polymer fractions in an ATREF test:
• from about 0.1 to about 8 wt. % of the polymer eluted below a temperature of 40° C.;
• greater than about 45 wt. % of the polymer eluted between 40 and 76° C.;
• less than about 36 wt. % of the polymer eluted between 76 and 86° C.;
• and
• from about 1 to about 26 wt. % of the polymer eluted above a temperature of 86° C.