초록 ▼

Disclosed is a catalyst having the general formula [ STR 1 ] where L is a ligand having the formula [ STR 2 ] L' is L, Cp, Cp*, indenyle fluorenyl, NR.sub.2, OR, or halogen, L can be bridged to L; X is halogen, NR.sub.2, OR, or alkyl from C.sub.1 to C.sub.12, M is zirconium or hafnium, R is alkyl fr

Disclosed is a catalyst having the general formula [ STR 1 ] where L is a ligand having the formula [ STR 2 ] L' is L, Cp, Cp*, indenyle fluorenyl, NR.sub.2, OR, or halogen, L can be bridged to L; X is halogen, NR.sub.2, OR, or alkyl from C.sub.1 to C.sub.12, M is zirconium or hafnium, R is alkyl from C.sub.1 to C.sub.12 or aryl from C.sub.6 to C.sub.12, R.sub.1 is R, alkaryl from C.sub.6 to C.sub.12, aralkyl from C.sub.6 to C.sub.12, hydrogen, or Si(R).sub.3, R.sub.2 is R.sub.1, halogen, COR, COOR, SOR, or SOOR, R.sub.3 is R.sub.2, OR, N(R).sub.2, SR, or a fused ring system, Cp is cyclopentadienyl, Cp* is pentamethylcyclopentadienyl, n is 0 to 3, and L.sub.B is an optional Lewis base. Also disclosed is a method of making a poly-.alpha.-olefin comprising polymerizing an .alpha.-olefin monomer using a catalyst such as that described above where M can be titanium, zirconium, or hafnium.

대표청구항 ▼

[ We claim:] [1.] A method of making a poly-.alpha.-olefin comprising polymerizing an .alpha.-olefin monomer under polymerizing conditions in the presence of;(A) a catalyst having the general formula [ STR 9 ] where L is a ligand having the formula [ STR 10 ] L' is cyclopentadienyl, pentamethylcyclo

[ We claim:] [1.] A method of making a poly-.alpha.-olefin comprising polymerizing an .alpha.-olefin monomer under polymerizing conditions in the presence of;(A) a catalyst having the general formula [ STR 9 ] where L is a ligand having the formula [ STR 10 ] L' is cyclopentadienyl, pentamethylcyclopentadienyl, indenyl, fluorenyl, NR.sub.2, OR, or halogen, L' can be bridged to L, X is halogen, NR.sub.2, OR, or alkyl from C.sub.1 to C.sub.12, M is zirconium, titanium, or hafnium, R is alkyl from C.sub.1 to C.sub.12 or aryl from C.sub.6 to C.sub.12, R.sub.1 is R, Si(R).sub.3, or R.sub.4, R.sub.4 is alkaryl from C.sub.6 to C.sub.12, aralkyl from C.sub.6 to C.sub.12, or hydrogen, R.sub.2 is R, R.sub.4, halogen, COR, COOR, SOR, or SOOR, R.sub.3 is R.sub.2, Si(R).sub.3, OR, N(R).sub.2, SR, or a fused ring system, n is 0 to 3, and L.sub.B is an optional Lewis base; and(B) about 0.01 to about 100,000 moles of an alumoxane cocatalyst.