US5391789A
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Bridged, chiral metallocenes, processes for their preparation and their use as catalysts
Assignee: Targor GmbH
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Filing: 1992-08-05
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Granted: 1995-02-21
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Expires: 2012-08-05
Abstract
Abstract Bridged, chiral metallocenes, processes for their preparation and their use as catalysts Metallocenes of the formula I ##STR1## in which, preferably, M 1 is titanium, zirconium or hafnium, R 1 is a radical ##STR2## in which M 2 is carbon or silicon, R 4 and R 5 are identical and are hydrogen or an alkyl group, p is 1 or 2, R 2 is hydrogen or an alkyl group and the radicals R 3 are identical and are halogen or an alkyl group, form, together with an aluminoxane as a cocatalyst, a suitable catalyst system for olefin polymerization.
Inventors
- 👤 Jurgen Rohrmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:49
CPC Classifications
C; C07; C07F; C07F17/00; C07C; C07C13/00; C07C13/28; C07C13/32; C07C13/54; C07C13/547; C07C13/567; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/0805; C08; C08F; C08F10/00; C07C2602/00; C07C2602/02; C07C2602/04; C07C2602/08; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/18; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/639; C08F4/63912; C08F4/6392; C08F4/63922; C08F4/63927
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
251 words
A compound of the formula I ##STR16## in which M 1 is a metal from the group comprising titanium, zirconium, hafnium, vanadium, niobium and tantalum, R 1 is ##STR17## in which M 2 is carbon, silicon, germanium or tin, R 4 and R 5 are identical or different and are a hydrogen atom, a halogen atom, a C 1 -C 10 -alkyl group, a C 6 -C 10 -aryl group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group or a C 7 -C 40 -alkylaryl group, or R 4 and R 5 , together with the atom joining them, form a ring, and p is 1, 2 or 3, the radicals R 2 are identical or different and are hydrogen, a C 1 -C 10 -alkyl group, a C 6 -C 10 -aryl group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group, a C 7 -C 40 -alkylaryl group or a halogen atom and the radicals R 3 are identical or different and are a C 1 -C 10 -alkyl group, a C 1 -C 10 -alkoxy group, a C 6 -C 10 -aryl group, a C 6 -C 10 -aryloxy group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group, a C 7 -C 40 -alkylaryl group, hydrogen or a halogen atom.
Claim 2
Dependent Claim
251 words
A compound of the formula I ##STR16## in which M 1 is a metal from the group comprising titanium, zirconium, hafnium, vanadium, niobium and tantalum, R 1 is ##STR17## in which M 2 is carbon, silicon, germanium or tin, R 4 and R 5 are identical or different and are a hydrogen atom, a halogen atom, a C 1 -C 10 -alkyl group, a C 6 -C 10 -aryl group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group or a C 7 -C 40 -alkylaryl group, or R 4 and R 5 , together with the atom joining them, form a ring, and p is 1, 2 or 3, the radicals R 2 are identical or different and are hydrogen, a C 1 -C 10 -alkyl group, a C 6 -C 10 -aryl group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group, a C 7 -C 40 -alkylaryl group or a halogen atom and the radicals R 3 are identical or different and are a C 1 -C 10 -alkyl group, a C 1 -C 10 -alkoxy group, a C 6 -C 10 -aryl group, a C 6 -C 10 -aryloxy group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group, a C 7 -C 40 -alkylaryl group, hydrogen or a halogen atom.
Claim 3
Dependent Claim
82 words
A compound of the formula I as claimed in claim 1, in which, in formula I, M 1 is titanium, zirconium or hafnium, M 2 is carbon or silicon, R 4 and R 5 are identical and are hydrogen or a C 1 -C 4 -alkyl group, p is 1 or 2, R 2 is hydrogen or a C 1 -C 4 -alkyl group and the radicals R 3 are identical and are halogen or a C 1 -C 4 -alkyl group.
Claim 4
Dependent Claim
61 words
A compound of the formula I as claimed in claim 1, in which, in formula I, M 1 is zirconium, M 2 is carbon or silicon, R 4 and R 5 are identical and are methyl or ethyl, p is 1, R 2 is hydrogen or a methyl group and the radicals R 3 are identical and are chlorine or methyl.
Claim 5
Dependent Claim
5 words
Isopropylidene(9-fluorenyl)(1-indenyl)zirconium dichloride or dimethylsilyl(9-fluorenyl)(1-indenyl)zirconium dichloride.
Claim 6
Dependent Claim
5 words
Isopropylidene(9-fluorenyl)(1-indenyl)zirconium dichloride or dimethylsilyl(9-fluorenyl)(1-indenyl)zirconium dichloride.
Claim 7
Dependent Claim
189 words
A process for the preparation of a compound of the formula I as claimed in claim 1, which comprises a) reacting a compound of the formula II ##STR18## with a compound of the formula III X--R.sup.1 --X (III) to give a compound of the formula IV ##STR19## and reacting this with a compound of the formula V ##STR20## to give a compound of the formula VI ##STR21## in which R 1 and R 2 have the meanings given for formula I, X is a nucleophilic leaving group, and M is an alkali metal, or b) for a compound of the formula I where ##STR22## reacting a compound of the formula VII ##STR23## with a compound of the formula II to give a compound of the formula VI, in which the substituents have the meanings given for formula I, and reacting the reaction product VI obtained under a) or b) with a compound of the formula VIII M.sup.1 X'.sub.4 (VIII) in which X' is halogen and M 1 has the meaning given in formula I, and optionally forming derivatives of the reaction product thus obtained by reaction with alkylating agents.
Claim 8
Independent Claim
300 words
A method for polymerizing an olefin to obtain a polyolefin, comprising the step of: carrying out the polymerization in solution, in suspension or in the gas phase, at a temperature of 0° to 150° C., and at a pressure of 0.5 to 100 bar, presence of a catalyst comprising a compound of formula I ##STR24## in which M 1 is a metal selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium and tantalum, R 1 is ##STR25## in which M 2 is carbon, silicon, germanium or tin, R 4 and R 5 are identical or different and are a hydrogen atom, a halogen atom, a C 1 -C 10 -alkyl group, a C 6 -C 10 -aryl group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group or a C 7 -C 40 -alkylaryl group, or R 4 and R 5 , together with the atom joining the, form a ring, and p is 1.2 or 3, the radicals R 2 are identical or different and are hydrogen, a C 1 -C 10 -alkyl group, a C 6 -C 10 -aryl group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group a C 7 -C 40 -alkylaryl group or a halogen atom and the radicals R 3 are identical or different and are a C 1 -C 10 -alkyl group, a C 1 -C 10 -alkoxy group, a C 6 -C 10 -aryl group, a C 6 -C 10 -aryloxy group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group, a C 7 -C 40 -alkylaryl group, hydrogen or a halogen atom.
Claim 9
Independent Claim
300 words
A method for polymerizing an olefin to obtain a polyolefin, comprising the step of: carrying out the polymerization in solution, in suspension or in the gas phase, at a temperature of 0° to 150° C., and at a pressure of 0.5 to 100 bar, presence of a catalyst comprising a compound of formula I ##STR24## in which M 1 is a metal selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium and tantalum, R 1 is ##STR25## in which M 2 is carbon, silicon, germanium or tin, R 4 and R 5 are identical or different and are a hydrogen atom, a halogen atom, a C 1 -C 10 -alkyl group, a C 6 -C 10 -aryl group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group or a C 7 -C 40 -alkylaryl group, or R 4 and R 5 , together with the atom joining the, form a ring, and p is 1.2 or 3, the radicals R 2 are identical or different and are hydrogen, a C 1 -C 10 -alkyl group, a C 6 -C 10 -aryl group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group a C 7 -C 40 -alkylaryl group or a halogen atom and the radicals R 3 are identical or different and are a C 1 -C 10 -alkyl group, a C 1 -C 10 -alkoxy group, a C 6 -C 10 -aryl group, a C 6 -C 10 -aryloxy group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 8 -C 40 -arylalkenyl group, a C 7 -C 40 -alkylaryl group, hydrogen or a halogen atom.
Claim 10
Dependent Claim
23 words
Compound as claimed in claim 1, wherein R 4 and R 5 are identical or different and are methyl, ethyl, hydrogen or chlorine.
Claim 11
Dependent Claim
14 words
The process as claimed in claim 5, wherein X is a halogen or O-tosyl.
Claim 12
Dependent Claim
77 words
The method as claimed in claim 6, further comprising a co-catalyst which is an aluminoxane of the formula (A) ##STR26## for the linear type, and/or of the formula (B) ##STR27## for the cyclic type, in which, in the formulae (A) and (B), the radicals R can be identical or different and are a C 1 -C 6 -alkyl group, a C 6 -C 18 -aryl group or hydrogen and p is an integer from 2 to 50.
Claim 13
Dependent Claim
16 words
The method as claimed in claim 9, wherein p is an integer from 10 to 35.
Claim 14
Dependent Claim
18 words
The method as claimed in claim 9, wherein R is identical and is methyl, isobutyl, phenyl or benzyl.
Claim 15
Dependent Claim
14 words
The method as claimed in claim 10, wherein R is identical and is methyl.
Claim 16
Dependent Claim
16 words
The method as claimed in claim 9, wherein R is different and is methyl and hydrogen.
Claim 17
Dependent Claim
18 words
The method as claimed in claim 9, wherein R is different and is methyl and isobutyl and hydrogen.
Claim 18
Dependent Claim
25 words
The method as claimed in claim 14, wherein the isobutyl being contained in the radicals is to the extent of 0.1-40% (number of radicals R).
Claim 19
Dependent Claim
25 words
The process as claimed in claim 6, wherein said temperature is from 30° to 80° C. and said pressure is from 5 to 64 bar.
Claim 20
Dependent Claim
42 words
The method as claimed in claim 6, wherein said olefin is of the formula R a CH═CH--R b wherein R a and R b are identical or different and are a hydrogen atom or an alkyl radical having 1 to 14 carbons.
Claim 21
Dependent Claim
14 words
The method as claimed in claim 17, wherein said olefin is propylene or ethylene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-02-20 | 1998-08-22 | 1999-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-20 | 2002-08-22 | 2003-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-20 | 2006-08-22 | 2007-02-21 | $7700.00 | Window Closed / Lapsed |