Patent ID: 7691956

Claim:
A process for producing polymer comprising polymerizing ethylene and optionally one or more comonomers at a temperature of from 30° C. to 200° C. in the presence of a supported bulky ligand metallocene-type catalyst system and a diluent to form a slurry of polymer solids, wherein the diluent comprises at least 5 volume percent of a fluorinated hydrocarbon based on the total volume of the diluent, wherein the fluorinated hydrocarbon is not a perfluorocarbon, and wherein the bulky ligand metallocene-type catalyst system comprises an activator and a bulky ligand metallocene-type compound is represented by the formula: L A L B MQ n (I) or L A AL B MQ n (II) where M is a metal from Group 3 to 12 of the Periodic Table of Elements, L A and L B are selected from the group consisting of cyclopentadienyl ligands, cyclopentaphenanthreneyl ligands, indenyl ligands, benzindenyl ligands, fluorenyl ligands, octahydrofluorenyl ligands, cyclooctatetraendiyl ligands, cyclopentacyclododecene ligands, azenyl ligands, azulene ligands, pentalene ligands, pyrrolyl ligands, pyrozolyl ligands, carbazolyl ligands, borabenzene ligands and hydrogenated versions thereof; Q is a monoanionic labile ligand having a sigma-bond to M, and depending on the oxidation state of M, the value for n is 0, 1 or 2 such that Formula I or II above represents a neutral bulky ligand metallocene-type catalyst compound; and A is a bridging group containing carbon, germanium or silicon.