Patent DE-10359341-A1 (DE)
Title: New monocyclopentadienyl complex useful in catalyst system used in prepolymerized catalyst system and for the polymerization or copolymerization of olefins
Inventor: MIHAN SHAHRAM
IPC: C07F17/00
Filed: 2003-12-16
Abstract: A monocyclopentadienyl complex is new. A monocyclopentadienyl complex of formula Cp-Y mM a (I) is new. Cp : cyclopentadienyl system having an aryl substituent; Y : substituent which is bound to Cp and contains at least one uncharged donor containing at least one atom of group (VIIA) or noble gas group of the periodic table; M atitanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum or tungsten or an element of (IIIB) of the periodic table and the lanthanides; m : 1-3. Independent claims are included for the following: (1) a catalyst system (s1) for olefin polymerization comprising at least one monocyclopentadienyl complex, optionally an organic or inorganic support, optionally at least one activating compound, optionally further catalysts suitable for olefin polymerization and optionally at least one metal compound containing a metal of group (IA), (IIA) or (VA); (2) a prepolymerized catalyst system (s2) comprising (s1) and at least one linear 2-10C-1-alkenes polymerized onto it in a mass ratio of 1:0.1 - 1:1000; (3) preparation of polyolefins by polymerization or copolymerization of olefins in the presence of (s1) or (s2); (4) preparation of cyclopentadiene systems of formula (VIa) involving reacting (A-(CR 29aR 30a) m)-anion with a cyclopentanedione a silyl ether of an enolized cyclopentanedione; (5) preparation of cyclopentadiene system of formula (VIb) by reacting (A-(CR 30aR 31a) m)-anion with a cyclopentenone of formula (VII) to form a cyclopentenone of formula (VIII); (6) cyclopentadiene compound of formula (VIb) and (VIII). E 12a-E 16aC, conjugated diene system or H; R 26a-R 29aT 1, N(R 32a) 2, N(Si(R 32) 3) 2, OR 32a, OSi(R 32a) 3, B(R 32a) 2, Si(R 32a) 3, B(R 32a) 2 or Si(R 32a) 3 (all optionally substituted by halo) or H; T 11-20C alkyl, 2-20C alkenyl, 6-20C aryl or 1-10C alkyl(6-20C) aryl; R 26a+R 27a+R 28a+R 29a,R 27a1+R 28a15-6 membered ring or heterocycle (containing at least one atom selected from N, P, O or S); (MK#6) R 30a-R 31a = T 1, Si(R 32a) 3 (both optionally substituted by halo) or H; (MK#7) R 30a+R 31a+A 1, R 32a+R 32a, R 30a+R 31a+A 2 = 5-6 membered ring; (MK#9) R 32a = T 1 or H; (MK#10) m 1 = 0-2; (MK#11) A 1 = T 2; (MK#12) T 2 = uncharged donor group containing at least one atom of group (VIIA) and/or noble gas group of the periodic table of the elements or a carbene (optionally substituted) or fused, heteroaromatic ring system; (MK#13) R 26a1-R 28a1 = T 1, Si(R 32a) 3 (both optionally substituted by halo) or H; (MK#14) m 2 = 0 or 1; (MK#15) A 2 =o ptionally substituted or fused heteroaromatic ring system; (MK#16) Aryl a = 6-22C aryl (preferably phenyl, naphthyl, biphenyl, anthracenyl or phenanthrenyl (optionally substituted by N, P, O, or S-containing substituents, 1-22C alkyl, 2-22C alkenyl, halo or halo(1-10C)alkyl or halo(1-10C)aryl. Four adjacent E 12a-E 16a forms a conjugated diene system and the remaining E 12a - E 16a additionally bearing H. [Image] [Image].