Patent ID: 7662894

Claim:
A catalyst composition for the polymerization of olefins comprising: A) a solid catalyst precursor consisting essentially of a first metallocene compound represented by the formula (Cp) z ZrR w X y , wherein Cp represents an unsubstituted or substituted cyclopentadienyl ring, R represents a hydrocarbyl group, X represents a halogen atom, and 1≦z≦3, 0≦w≦3, and 0≦y≦3; a second metallocene compound represented by the formula (Cp′) x MR′ w X′ y , wherein Cp represents an unsubstituted or substituted cyclopentadienyl ring, M represents titanium, vanadium or hafnium, R′ represents a hydrocarboxyl group, X′ represents a halogen atom, and 1≦z≦3, 0≦w≦3, and 0≦y≦3; optionally a metallocene activator comprising an aluminum compound; a magnesium compound; an alcohol compound represented by the formula ROH, wherein R is an alkyl, aryl, or cycloalkyl group having 1 to 20 carbon atoms; and a polymeric support; and B) a co-catalyst comprising an aluminum compound.