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US5473020A Expired / Lapsed US ⏱️ 0.0 years remaining

Polymer bound ligands, polymer bound metallocenes, catalyst systems, preparation, and use

Assignee: Phillips Petroleum Co
•
Filing: 1994-06-30
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Granted: 1995-12-05
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Expires: 2014-06-30
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Abstract

Abstract A polymer bound ligand represented by the formula QM(R) m and process for preparing same are provided, wherein Q is a polystyrene, M is Si, C, Ge, Sn, P, or N, each R is a that at least one R is a cyclopentadienyl-type compound, and m is 2 or 3, said process comprising reacting a metallated polystyrene and an organohalide compound, wherein the polystyrene is metallated with an alkali metal, and wherein said organohalide compound is represented by the formula XM(R) m wherein X is a halide. Other aspects of the present invention include a polymer bound metallocene represented by the formula QM(R) m ZY n and a process for preparing same, wherein Z is a transition metal, Y is a halide, methyl, hydrogen, or a cyclopentadienyl-type group, and n is 2 or 3. Other aspects of the present invention include a catalyst system comprising the polymer bound metallocene and an organoaluminoxane, a method for preparing same, and a polymerization process employing the catalyst system.

Inventors

  • 👤 Bernd Peifer
  • 👤 Helmut G. Alt
  • 👤 M. Bruce Welch
  • 👤 Syriac J. Palackal

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 17:49
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/619; C08F4/6192; C08F8/00; C08F8/42; C08F10/00; C08F4/61912; C08F4/61916; C08F4/61922

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 142 words
A process for preparing a polymer bound ligand useful as a metallocene catalyst component, said process comprising: reacting a metallated polystyrene and an organohalide compound; wherein said polystyrene is metallated with an alkali metal; wherein said organohalide compound is represented by the formula XM(R) m wherein X is a halide, M is Si, C, Ge, Sn, P, or N, wherein each R is a hydrocarbyl group independently selected from the group consisting of alkyl, cycloalkyl, aryl, and cyclopentadienyl-type groups containing 1 to 36 carbon atoms, with the proviso that at least one R group is a cyclopentadienyl-type group, wherein said cyclopentadienyl-type groups are cyclopentadienyl, substituted cyclopentadienyl, indenyl, substituted indenyl, fluorenyl, or substituted fluorenyl, wherein the substituents include hydrocarbyl groups containing 1 to 12 carbon atoms, alkoxy groups containing 1 to 12 carbon atoms, or halide, and wherein m is 2 or 3.
Claim 2
Dependent Claim 142 words
A process for preparing a polymer bound ligand useful as a metallocene catalyst component, said process comprising: reacting a metallated polystyrene and an organohalide compound; wherein said polystyrene is metallated with an alkali metal; wherein said organohalide compound is represented by the formula XM(R) m wherein X is a halide, M is Si, C, Ge, Sn, P, or N, wherein each R is a hydrocarbyl group independently selected from the group consisting of alkyl, cycloalkyl, aryl, and cyclopentadienyl-type groups containing 1 to 36 carbon atoms, with the proviso that at least one R group is a cyclopentadienyl-type group, wherein said cyclopentadienyl-type groups are cyclopentadienyl, substituted cyclopentadienyl, indenyl, substituted indenyl, fluorenyl, or substituted fluorenyl, wherein the substituents include hydrocarbyl groups containing 1 to 12 carbon atoms, alkoxy groups containing 1 to 12 carbon atoms, or halide, and wherein m is 2 or 3.
Claim 3
Dependent Claim 13 words
A process according to claim 1 wherein said organohalide compound is a chlorosilane.
Claim 4
Dependent Claim 12 words
A process according to claim 2 wherein said organohalide compound is (chloro)(diphenyl)(9-fluorenyl)silane.
Claim 5
Dependent Claim 12 words
A process according to claim 2 wherein said organohalide compound is (chloro)(cyclopentadienyl)(9-fluorenyl)(methyl)silane.
Claim 6
Dependent Claim 13 words
A process according to claim 1 wherein said metallated polystyrene is lithiated polystyrene.
Claim 7
Dependent Claim 13 words
A process according to claim 1 wherein said metallated polystyrene is lithiated methylpolystyrylcyclopentadiene.
Claim 8
Dependent Claim 12 words
A polymer bound ligand prepared according to the process of claim 1.

References Cited (Backward Citations)

US5153157A Cited
US5084534A Cited
US4882384A Cited
US4985576A Cited
US5049535A Cited
US5145819A Cited
JPH04234405A Cited
US5362824A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-12-04 1999-06-05 1999-12-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-12-04 2003-06-05 2003-12-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-12-04 2007-06-05 2007-12-05 $7700.00 Window Closed / Lapsed

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