Patent ID: 6911508

Claim:
A method of producing a copolymer of ethylene and 1-hexene in a fluidized bed gas-phase reactor, wherein as the mole ratio of 1-hexene to ethylene is varied in the reactor between 0.015 to 0.05, the density of the resultant polyethylene changes by less than 5% and the I 21 /I 2 varies from 10 to 150, the method comprising: combining in the fluidized bed gas-phase reactor ethylene and 1-hexene, an activator, and a metallocene catalyst compound to produce a polyethylene; wherein the metallocene catalyst compound is selected from: wherein M is a Group 4 atom; X is a leaving group; n is an integer from 0 to 3; and R 1 to R 12 are independently selected from the group consisting of hydrides, halogens, hydroxy, C 1 to C 6 alkoxys, C 1 to C 6 alkenyls, and C 1 to C 10 alkyls, provided that the tetrahydroindenyl is substituted.