Patent ID: 7645715

Claim:
A bis-arylaryloxy transition metal catalyst shown in Formula 1, which comprises a cyclopentadienyl group containing ligand around a transition metal and two aryloxide ligands substituted with aryl derivatives at the ortho-positions, the ligands not being bridged to each other: wherein M is a group-IV transition metal in the periodic table; Cp is cyclopentadienyl or a derivative thereof, which forms an η 5 bond with the central metal; R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 and R 9 on the arylphenoxide ligands are each independently a hydrogen atom, a halogen atom, a C1-C20 linear or nonlinear alkyl group optionally substituted with at least one halogen atoms, a silyl group containing a C1-C20 linear or nonlinear alkyl group optionally substituted with at least one halogen atoms, a C6-C30 aryl group optionally substituted with at least one halogen atom, a C7-C30 arylalkyl group optionally substituted with at least one halogen atom, an alkoxy group having a C1-C20 linear or nonlinear alkyl group optionally substituted with at least one halogen atoms, a siloxy group having C3-C20 alkyl or C6-C20 aryl, an amido or phosphido group having a C1-C20 hydrocarbon group, or a mercapto group having C1-C20 alkyl, or a nitro group, and these substituents ma y also optionally bind to each other to form a ring; and X is selected from the group consisting of an halogen atom, a C1-C20 alkyl group other than a Cp derivative, a C7-C30 arylalkyl group, an alkoxy group having a C1-C20 alkyl group, a siloxy group substituted with C3-C20 alkyl, and an amido group having a C1-C20 hydrocarbon group.