A catalyst system having a metallocene linked to a carrier by an anchored chain

摘要

The present invention relates to a catalyst system useful for polymerizing or copolymerizing olefins, alpha -olefins, cyclic olefins, diolefins, vinyl and/or styrene monomers in the slurry or gas phase with improved reactor operability, more specifically, a catalyst system comprises i ) a metallocene having at least one ligand of unsubstituted or substituted cyclopentadienyl skeleton being linked by anchored chain, ii ) at least one carrier, and iii) an activator selected from alkylaluminoxane and alkylaluminum, wherein said carrier is linked with said metallocene by anchored chain.