Patent ID: 8759243

Claim:
A multi-component catalyst system comprising: a first catalyst component generally represented by the formula XCp A Cp B MA n , wherein X is a structural bridge, Cp A and Cp B each denote a cyclopentadienyl group or derivatives thereof, each being the same or different and which may be either substituted or unsubstituted, M is a transition metal and A is an alkyl, hydrocarbyl or halogen group and n is an integer between 0 and 4; and a second catalyst component generally represented by the formula XCp A Cp B MA n , wherein X is a structural bridge, Cp A and Cp B each denote a cyclopentadienyl group or derivatives thereof, each being the same or different and which may be either substituted or unsubstituted, M is a transition metal and A is an alkyl, hydrocarbyl or halogen group and n is an integer between 0 and 4 and wherein the second catalyst component exhibits a higher ethylene response than the first catalyst component and is capable of forming a propylene-ethylene copolymer with a higher level of xylene solubles than the first catalyst component.