Patent ID: 7589042
Filing Date: 2009-09-15
Classification: C07F,C08F

Abstract:
1. An arylphenoxy-based transition metal catalyst for producing ethylene homopolymer or copolymers of ethylene and α-olefins which is expressed by Formula 1, which includes a cyclopentadienyl derivative and arylphenoxide as fixed ligands around a transition metal, the arylphenoxide being substituted with at least one aryl derivative and being located at an ortho position thereof, and the ligands not being crosslinked to each other: wherein M is a group 4 transition metal of a periodic table; Cp is a cyclopentadienyl anion capable of forming an η R each X is independently selected from the group consisting of a halogen atom, a C1-C20 alkyl group which is not the Cp derivative, a C7-C30 arylalkyl group, an alkoxy group which contains a C1-C20 alkyl group, a C3-C20 alkyl-substituted siloxy group, and an amido group which has a C1-C20 hydrocarbon group; Y is a hydrogen atom, a halogen atom, a C1-C20 linear or nonlinear alkyl group, a silyl group which contains a C1-C20 linear or nonlinear alkyl group, a C6-C30 aryl group, a C7-C30 arylalkyl group, a C1-C20 alkylalkoxy group, a C3-C20 alkyl-substituted siloxy group or C6-C20 aryl-substituted siloxy group, a amido group or a phosphido group which has the C1-C20 hydrocarbon group, or a C1-C20 alkyl-substituted mercapto or nitro group; and n is 1 or 2 depending on an oxidation value of the transition metal.