Bridged metallocene catalyst component, method of making, polyolefin catalyst having C1, C2, or Cs symmetry, methods of making, methods of polymerizing, olefins and products made thereof

摘要

Bridged metallocene catalyst component in which a bridge spans two cyclopentadienyl groups, which Cp groups are attached to same or different heteroatoms of the bridge, which heteroatoms are also bonded to the metal. A catalyst systems is made by contacting the bridged component with a cocatalyst. Polymerization of olefins in catalyzed by the system.