Patent ID: 7078467

Claim:
A method for transitioning within a single reactor from a first polyethylene product to a second polyethylene product, comprising: (a) operating the reactor at a pressure of less than 10,000 kPa with a first molar ratio of hydrogen to ethylene and a first molar ratio of comonomer to ethylene; (b) withdrawing a first polyethylene product; (c) altering one or both of the molar ratio of hydrogen to ethylene and the molar ratio of comonomer to ethylene to achieve a second molar ratio of hydrogen to ethylene and a second molar ratio of comonomer to ethylene; and (d) withdrawing a second polyethylene product; wherein the transition takes place using the same catalyst composition and wherein the density of the first polyethylene product is less than or equal to 0.920 g/cm 3 , and the density of the second polyethylene product is greater than or equal to 0.935 g/cm 3 , or wherein the transition takes place using the same catalyst composition and wherein the I 2 of the first polyethylene product is less than or equal to 8, and the I 2 of the second polyethylene product is greater than or equal to 12.