Patent ID: 8314199

Claim:
A polymerization process comprising: contacting an ethylene monomer with an active catalyst system comprising a fluorinated activating support and a metallocene component of formula: R″(H 4 Ind) 2 MQ 2 (I) wherein (H 4 Ind) is substituted or unsubstituted tetrahydroindenyl; R″ is a structural bridge between the two indenyls to impart stereorigidity that comprises a C 1 -C 4 alkylene radical, a dialkyl germanium or silicon or siloxane, or an alkyl phosphine or amine radical, wherein the bridge is substituted or unsubstituted; M is a metal Group 4 of the Periodic Table; and Q is hydrogen, halogen, hydrocarbyl or hydrocarboxy to form polyethylene, wherein the polyethylene exhibits a melt strength MS≧0.021 p-0.131, and wherein MS is melt strength expressed in N and p is extruder head pressure expressed in MPa; and processing the polyethylene in a rheological extruder through a die to form an extruded polyethylene, wherein the extruded polyethylene exhibits a long chain branching index g′ determined by SEC-VISCO larger than 0.90 and a polydispersity index (Mw/Mn) of at most 7 when the die has a L/D of 30:2 at a rate of 500 s −1 and at temperature of 190° C.