Metallocene and catalyst used for the preparation of chemically homogeneous cycloolefin copolymers
First Claim
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1. A compound (metallocene) of The formula XI in whichM1 is titanium, zirconium, hafnium, vanadium, niobium or tantalum, R14 and R15 are identical or different and are a hydrogen atom, a halogen atom, a C1-C10-alkyl group, a C1-C10-alkoxy group, a C8-C10-aryl group, a C6-C10-aryloxy group, a C2-C10-alkenyl group, a C7-C40-arylalkyl group, a C7-C40-alkylaryl group or a C8-C40-arylalkenyl group, R16 and R17 are different and are a fluorenyl ligand and a substituted cyclopentadienyl ligand, R18
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BR19, ═
AIR19, ═
NR19, ═
PR19 or ═
P(O)R19 wherein R19 is a C6-C10-aryl group, R20 and R21 are identical or different and are a hydrogen atom, a halogen atom, a C1-C10-alkyl group, a C1-C10-fluoroalkyl group, a C6-C10-fluoroaryl group, a C6-C10-aryl group, a C1-C10-alkoxy group, a C2-C10-alkenyl group, a C7-C40-arylalkyl group, a C6-C40-arylalkenyl group or a C7-C40-alkylaryl group, or R19 and R20 or R19 and R21, in each case with the atoms connecting them, form a ring, and M2 is silicon, germanium or tin and the metallocene has a C1 symmetry in the part of the metallocene formed by M1 and R16 and R17.
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Abstract
Chemically homogeneous cycloolefin copolymers of polycyclic olefins, such as, for example, norbornene or tetracyclododecene, with cycloolefins and/or acyclic olefins are obtained without ring opening and in a high space-time yield if a catalyst system is used which comprises an aluminoxane and a stereorigid metallocene compound of an element from groups IVb to VIb, of the formula
the part of the metallocene molecule formed by M1 and the substituents R16-R17 having C1-symmetry or being in the meso-form.
62 Citations
21 Claims
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1. A compound (metallocene) of The formula XI
in which M1 is titanium, zirconium, hafnium, vanadium, niobium or tantalum, R14 and R15 are identical or different and are a hydrogen atom, a halogen atom, a C1-C10-alkyl group, a C1-C10-alkoxy group, a C8-C10-aryl group, a C6-C10-aryloxy group, a C2-C10-alkenyl group, a C7-C40-arylalkyl group, a C7-C40-alkylaryl group or a C8-C40-arylalkenyl group, R16 and R17 are different and are a fluorenyl ligand and a substituted cyclopentadienyl ligand, R18 - ═
BR19, ═
AIR19, ═
NR19, ═
PR19 or ═
P(O)R19 wherein R19 is a C6-C10-aryl group, R20 and R21 are identical or different and are a hydrogen atom, a halogen atom, a C1-C10-alkyl group, a C1-C10-fluoroalkyl group, a C6-C10-fluoroaryl group, a C6-C10-aryl group, a C1-C10-alkoxy group, a C2-C10-alkenyl group, a C7-C40-arylalkyl group, a C6-C40-arylalkenyl group or a C7-C40-alkylaryl group, or R19 and R20 or R19 and R21, in each case with the atoms connecting them, form a ring, andM2 is silicon, germanium or tin and the metallocene has a C1 symmetry in the part of the metallocene formed by M1 and R16 and R17. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
for the linear type and/or formula X for the cyclic type, wherein R13 are identical or different and are a (C1-C5)-alkyl group, phenyl or benzyl, and n is an integer from 0 to 50, combined with the metallocene as claimed in claim 1. -
13. The catalyst as claimed in claim 12, wherein the metallocene is diphenylmethylene(9-fluorenyl)(1-(3-methyl)cyclopentadienyl)M1Cl2, methylphenylmethylene(9-fluorenyl)(1-(3-methyl)cyclopentadienyl)M1Cl2, diphenylsilyl(9-fluorenyl)(1-(3-methyl)cyclopentadienyl)M1Cl2, diphenylmethylene(9fluorenyl)(1-(3-tert-butyl)cyclopentadienyl)M1Cl2, wherein M1 is zirconium or hafnium.
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14. The catalyst as claimed in claim 12, wherein said aluminoxane is methylaluminoxane.
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15. The catalyst as claimed in claim 12, wherein R18 is
M2 is silicon, M1 is zirconium or hafnium, R14 and R15 are identical or different and are a C1-C3-alkyl or a halogen atom and R20 is hydrogen, a C1-C10-alkyl group, a C1-C10-fluoroalkyl group, a C6-C10-fluoroaryl group or a C6-C10-aryl group. -
16. The catalyst as claimed in claim 15, wherein R19 is a C6-aryl group.
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17. The catalyst as claimed in claim 16, wherein R20 is a C1-C10-alkyl or a C6-C10-aryl.
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18. The catalyst as claimed in claim 17, wherein R20 is a C1-alkyl or a C6-aryl and said aluminoxane is methylaluminoxane.
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- 19. Isopropylene(9-fluorenyl)(1-(3-isopropyl)cyclopentadienyl)M1Cl2 therein M1 is zirconium or hafnium.
Specification
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Current AssigneeTargor Gmbh (BASF SE)
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Original AssigneeTargor Gmbh (BASF SE)
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InventorsRohrmann, Jürgen, Antberg, Martin, Osan, Frank, Brekner, Michael-Joachim
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Primary Examiner(s)Wu, David W.
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Assistant Examiner(s)CHOI, LING SIU
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Application NumberUS08/840,255Time in Patent Office1,359 DaysField of Search556/11, 556/12, 556/13, 556/19, 556/20, 556/43, 556/51, 556/52, 556/53, 502/152, 502/153, 526/127, 526/160, 526/943US Class Current502/152CPC Class CodesC07F 17/00 MetallocenesC08F 10/00 Homopolymers and copolymers...C08F 210/02 EtheneC08F 232/08 having condensed rings coum...C08F 2500/17 ViscosityC08F 4/63908 in combination with an ioni...C08F 4/63912 in combination with an orga...C08F 4/63916 supported on a carrier, e.g...C08F 4/63927 two cyclopentadienyl rings ...C08F 4/65912 in combination with an orga...C08F 4/65927 two cyclopentadienyl rings ...Y10S 526/943 Polymerization with metallo...
