Patent ID: 7972987

Claim:
A fourth group transition metal compound of the following Formula 1: wherein R1 to R4 are the same or different from each other and each independently a hydrogen atom; an alkyl radical having 1 to 20 carbon atoms; an alkenyl radical having 2 to 20 carbon atoms; a silyl radical; an alkylaryl radical; or an arylalkyl radical, and may be connected to each other by an alkylidene radical containing an alkyl radical having 1 to 20 carbon atoms or aryl radical to form a ring, R5 to R7 are the same or different from each other and each independently a hydrogen atom; a halogen radical; an alkyl radical having 1 to 20 carbon atoms; an aryl radical; an alkoxy radical; an aryloxy radical; an alkylamino radical; or an arylamino radical, and two or more groups of R5 to R7 may be connected to each other to form an aliphatic or aromatic ring, R8 is a hydrogen atom; an alkyl radical having 1 to 20 carbon atoms; an aryl radical; an alkylaryl radical; or an arylalkyl radical, and is not present when Y is a sixteenth group atom, CY1 is a substituted or unsubstituted aliphatic or aromatic ring, Y is a fifteenth or sixteenth group atom, M is a fourth group transition metal, and X1 to X3 are the same or different from each other and each independently a halogen radical; an alkyl radical having 1 to 20 carbon atoms; an alkenyl radical; an aryl radical; an alkylaryl radical; an arylalkyl radical; an alkylamino radical; an arylamino radical; or an alkylidene radical having 1 to 20 carbon atoms.