Patent ID: 7700699

Claim:
A process for producing polymer, comprising: mixing together a diluent containing more than 10 weight percent of a fluorinated hydrocarbon based on the total weight of the diluent, a bulky ligand metallocene-type catalyst system, and an olefin feed containing propylene and optionally one or more comonomers; and forming a polymer wherein the fluorinated hydrocarbon in the diluent is not a perfluorinated hydrocarbon, 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.