Production of propylene-based polymers

摘要: In a process for producing a propylene-based olefin homopolymer or copolymer, a monomer composition com prising propylene is contacted with a polymerization catalyst system under homogeneous polymerization conditions (such as solution, Supersolution or Supercritical conditions), wherein the polymerization catalyst system includes an acti vator and a bridged bis-indenyl transition metal (group 4) compound substituted with a carbazole (unsubstituted or sub stituted) at the 4 position.