US5854166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis and use of (perfluoroaryl) fluoro-aluminate anion
Assignee: Northwestern University
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Filing: 1997-08-18
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Granted: 1998-12-29
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Expires: 2017-08-18
Abstract
Abstract A trityl perfluorophenyl alumninate such as tris(2,2',2"-nonafluorobiphenyl) fluoroaluminate (PBA - ) and its role as a cocatalyst in metallocene-mediated olefin polymerization is disclosed.
Inventors
- 👤 Tobin J. Marks
- 👤 You-Xian Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:04
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/16; B01J31/1608; B01J31/22; B01J31/2282; B01J31/2295; C; C07; C07F; C07F17/00; C07F5/00; C07F5/06; C07F5/061; C07F5/062; C08; C08F; C08F10/00; B01J2531/00; B01J2531/40; B01J2531/46; B01J2531/48; C08F110/00; C08F110/02; C08F110/04; C08F110/06; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/659; C08F4/6592; C08F4/65922; Y; Y10; Y10S; Y10S526/00; Y10S526/943
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
63 words
A catalytic complex of the formula: (CpCp'MR) + AR'R"R'"F - where Cp and Cp' is each a group containing a cyclopentadienyl ligand M is Ti, Zr, Hf, Th, or U R is an alkyl or aryl group (C≦20), or hydride A is Al, Ga, or In R', R", and R'" is each a fluorinated phenyl, fluorinated biphenyl or fluorinated polycyclic fused ring group.
Claim 2
Dependent Claim
63 words
A catalytic complex of the formula: (CpCp'MR) + AR'R"R'"F - where Cp and Cp' is each a group containing a cyclopentadienyl ligand M is Ti, Zr, Hf, Th, or U R is an alkyl or aryl group (C≦20), or hydride A is Al, Ga, or In R', R", and R'" is each a fluorinated phenyl, fluorinated biphenyl or fluorinated polycyclic fused ring group.
Claim 3
Dependent Claim
62 words
The complex of claim 1, wherein said cyclopentadienyl ligand is selected from the group consisting of indenyl, η 5 -C 5 H 5 ; η 5 -1,2-Me 2 C 5 H 3 ; η 5 -1,3-(SiMe 3 ) 2 C 5 H 3 ; η 5 -C 5 Me 5 and Me 2 Si(η 5 -Me 4 C 5 )( t BuN).
Claim 4
Dependent Claim
16 words
The complex of claim 1 wherein said polycyclic fused ring groups are naphthyl, anthracenyl, or fluorenyl.
Claim 5
Independent Claim
20 words
A method of preparing a catalyst composition including the step of adding tris(2', 2", 2'"-nonafluorobiphenyl fluoroaluminate to a cationic metallocene.
Claim 6
Independent Claim
20 words
A method of preparing a catalyst composition including the step of adding tris(2', 2", 2'"-nonafluorobiphenyl fluoroaluminate to a cationic metallocene.
Claim 7
Dependent Claim
13 words
The method of claim 4, wherein said cationic metallocene incorporates a cyclopentadienyl ligand.
Claim 8
Dependent Claim
64 words
The method of claim 4, wherein said cationic metallocene incorporates ligands selected from the group consisting of indenyl, η 5 -C 5 H 5 ; η 5 - 1,2-Me 2 C 5 H 3 ; η 5 -1,3-(SiMe 3 ) 2 C 5 H 3 ; η 5 -C 5 Me 5 and Me 2 Si(η 5 -Me 4 C 5 )( t BuN).
Claim 9
Independent Claim
75 words
A method of polymerizing an alpha olefin comprising the step of adding the catalyst (CpCp'MR) + AR'R"R'"F - to the alpha olefin where Cp and Cp' is each a group containing a cyclopentadienyl ligand M is Ti, Zr, Hf, Th, or U R is an alkyl, or aryl group (C≦20), or hydride A is Al, Ga, or In R', R", and R'" is each a Fluorinated phenyl, fluorinated biphenyl or fluorinated polycyclic fused ring group.
Claim 10
Independent Claim
75 words
A method of polymerizing an alpha olefin comprising the step of adding the catalyst (CpCp'MR) + AR'R"R'"F - to the alpha olefin where Cp and Cp' is each a group containing a cyclopentadienyl ligand M is Ti, Zr, Hf, Th, or U R is an alkyl, or aryl group (C≦20), or hydride A is Al, Ga, or In R', R", and R'" is each a Fluorinated phenyl, fluorinated biphenyl or fluorinated polycyclic fused ring group.
Claim 11
Dependent Claim
20 words
The method of claim 7, wherein said alpha olefin is selected from the group consisting of ethylene, propylene and styrene.
Claim 12
Dependent Claim
62 words
The method of claim 7, wherein said cyclopentadienyl ligand is selected from the group consisting of indenyl, η 5 -C 5 H 5 ; η 5 -1,2-Me 2 C 5 H 3 ; η 5 -1,3-(SiMe 3 ) 2 C 5 H 3 ; η 5 -C 5 Me 5 and Me 2 Si(η 5 -Me 4 C 5 )( t BuN).
Claim 13
Dependent Claim
14 words
The method of claim 7 wherein said reaction is carried out at ambient conditions.
Claim 14
Dependent Claim
18 words
The method of claim 7, wherein said reaction is initiated at temperatures from 25° C. to 110° C.
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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) | 2001-12-28 | 2002-06-29 | 2002-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-12-28 | 2006-06-29 | 2006-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-12-28 | 2010-06-29 | 2010-12-29 | $7700.00 | Window Closed / Lapsed |