Patent ID: 8084560

Claim:
A process for the production of an ethylene alpha-olefin copolymer comprising: polymerizing ethylene and at least one alpha-olefin by contacting the ethylene and the at least one alpha-olefin with a metallocene catalyst in at least one gas phase reactor at a reactor pressure of from 0.7 to 70 bar and a reactor temperature of from 20° C. to 150° C. to form an ethylene alpha-olefin copolymer, wherein the ethylene alpha-olefin copolymer is characterized by having a) a melt index (I 2 ) of from 0.1 to 100 dg/min, b) a MWD of from 1.5 to 5.0, c) a T 75 −T 25 value of greater than 20, wherein T 25 is the temperature at which 25% of the eluted polymer is obtained and T 75 is the temperature at which 75% of the eluted polymer is obtained in a TREF experiment; d) a M 60 /M 90 value of greater than 1.5, wherein M 60 is the molecular weight of the polymer fraction that elutes at 60° C. and M 90 is the molecular weight of the polymer fraction that elutes at 90° C. in a TREF-LS experiment; and e) a density of from 0.9129 g/cc to 0.9137 g/cc.