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US5637659A
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Method of polymerizing olefins using borabenzene catalysts
Assignee: Equistar Chemicals LP
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Filing: 1996-05-17
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Granted: 1997-06-10
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Expires: 2016-05-17
Abstract
Abstract Disclosed is a catalyst having the general formula ##STR1## where Q is a ligand containing the ring ##STR2## R is hydrogen, N(R') 2 , OR', or R', each R' is independently selected from alkyl from C 1 to C 10 , aryl from C 6 to C 15 , alkaryl C 7 to C 15 , and aralkyl from C 7 to C 15 , each X is independently selected from hydrogen, halogen, alkoxy from C 1 to C 10 .sub., dialkylamino from C 1 to C 10 , methyl, ##STR3## each R 1 is independently selected from halogen, alkoxy from C 1 to C 10 , and R', L is ##STR4## Q, or X, where L can be bridged to Q, B is an optional base, "n" is 0 to 5, and M is titanium, zirconium, or hafnium.
Inventors
- 👤 Ramesh Krishnamurti
- 👤 Sandor Nagy
- 👤 Bradley P. Etherton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:25
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/646; C08F4/659; C08F4/6592; C08F4/65922; C08F4/65925; C07; C07F; C07F17/00; C08F10/00; C08F110/00; C08F110/02; C08F210/00; C08F210/16; C08F4/65912; Y; Y10; Y10S; Y10S526/00; Y10S526/943
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
184 words
A method of polymerizing an α-olefin comprising heating said α-olefin in the presence of a catalyst having the general formula ##STR14## where Q is a ligand containing the ring ##STR15## R is selected from the group consisting of hydrogen, N(R') 2 , OR', and R', each R' is independently selected from the group consisting of alkyl from C 1 to C 10 , aryl from C 6 to C 15 , alkaryl from C 7 to C 15 , and aralkyl from C 7 to C 15 , each X is independently selected from the group consisting of hydrogen, halogen, alkoxy from C 1 to C 10 , dialkylamino from C 1 to C 10 , methyl, ##STR16## each R 1 is independently selected from the group consisting of halogen, alkoxy from C 1 to C 10 , and R', L is selected from the group consisting of ##STR17## Q, and X, where L can be bridged to Q, B L is an optional Lewis base, "n" is 0 to 5, and M is selected from the group consisting of titanium, zirconium, and hafnium.
Claim 2
Independent Claim
184 words
A method of polymerizing an α-olefin comprising heating said α-olefin in the presence of a catalyst having the general formula ##STR14## where Q is a ligand containing the ring ##STR15## R is selected from the group consisting of hydrogen, N(R') 2 , OR', and R', each R' is independently selected from the group consisting of alkyl from C 1 to C 10 , aryl from C 6 to C 15 , alkaryl from C 7 to C 15 , and aralkyl from C 7 to C 15 , each X is independently selected from the group consisting of hydrogen, halogen, alkoxy from C 1 to C 10 , dialkylamino from C 1 to C 10 , methyl, ##STR16## each R 1 is independently selected from the group consisting of halogen, alkoxy from C 1 to C 10 , and R', L is selected from the group consisting of ##STR17## Q, and X, where L can be bridged to Q, B L is an optional Lewis base, "n" is 0 to 5, and M is selected from the group consisting of titanium, zirconium, and hafnium.
Claim 3
Dependent Claim
18 words
The method of claim 1 wherein said α-olefin is further heated in the presence of an organometallic co-catalyst.
Claim 4
Dependent Claim
83 words
The method of claim 2 wherein the co-catalyst is either methylalumoxane or polymethylalumoxane or an aluminum alkyl of the formula AlR' x (R 2 ) 3-x , wherein R' is selected from the group consisting of a C 1 to C 10 alkyl, C 6 to C 15 aryl, a C 7 to C 15 alkaryl, and a C 7 to C 15 aralkyl, 1 ≦x≦3, and R 2 is hydrogen, halide, or a C 1 to C 20 alkyl or alkoxide group.
Claim 5
Dependent Claim
13 words
The method of claim 3 wherein the co-catalyst is triethylaluminum or ethylaluminum dichloride.
Claim 6
Dependent Claim
12 words
The method of claim 3 wherein the co-catalyst is methylalumoxane or polymethylalumoxane.
Claim 7
Dependent Claim
22 words
The method of claim 2 wherein the α-olefin is polymerized in a solvent in which both the catalyst and co-catalyst are soluble.
Claim 8
Dependent Claim
22 words
The method of claim 5 wherein the α-olefin is polymerized in a solvent in which both the catalyst and co-catalyst are soluble.
Claim 9
Dependent Claim
14 words
The method of claim 7 wherein the solvent is toluene, xylene, benzene, or ethylbenzene.
Claim 10
Dependent Claim
21 words
The method of claim 2 wherein the mole ratio of the organometallic co-catalyst to catalyst is about 0.01:1 to about 100,000:1.
Claim 11
Dependent Claim
21 words
The method of claim 9 wherein the mole ratio of the organometallic co-catalyst to catalyst is about 1:1 to about 10,000:1.
Claim 12
Dependent Claim
24 words
The method of claim 1 wherein the α-olefin is further polymerized in the presence of an acid salt that contains a non-coordinating inert anion.
Claim 13
Dependent Claim
24 words
The method of claim 11 wherein the acid salt is a non-nucleophilic compound consisting of bulky ligands attached to a boron or aluminum atom.
Claim 14
Dependent Claim
20 words
The method of claim 12 wherein the acid salt is lithium tetrakis(pentafluorophenyl)borate, lithium tetrakis(pentafluorophenyl)aluminate, anilinium tetrakis(pentafluorophenyl)borate, or a mixture thereof.
Claim 15
Dependent Claim
20 words
The method of claim 11 wherein the mole ratio of acid salt to catalyst is about 0.01:1 to about 1000:1.
Claim 16
Dependent Claim
20 words
The method of claim 14 wherein the mole ratio of acid salt to catalyst is about 1:1 to about 10:1.
Claim 17
Dependent Claim
10 words
The method of claim 1 wherein the α-olefin is ethylene.
Claim 18
Dependent Claim
20 words
The method of claim 1 wherein the α-olefin is a mixture of ethylene and at least one ethylenically unsaturated monomer.
Claim 19
Dependent Claim
30 words
The method of claim 17 wherein the ethylenically unsaturated monomer is selected from the group consisting of propylene, 1-butylene, 1-hexene, 1-octene, 1,3-butadiene, 1,4-hexadiene, 1,5-hexadiene, norbornene, ethylidene norbornene and vinyl norbornene.
Claim 20
Dependent Claim
14 words
The method of claim 1 wherein each X is chlorine or a methyl group.
Claim 21
Dependent Claim
11 words
The method of claim 1 wherein L is cyclopentadienyl or chlorine.
Claim 22
Dependent Claim
16 words
The method of claim 1 wherein Q is ##STR18## and R is --N(R') 2 or phenyl.
Claim 23
Dependent Claim
29 words
The method of claim 1 wherein Q is selected from the group consisting of ##STR19## wherein "m" is 0 to 7, or ##STR20## wherein "m" is 0 to 9.
Claim 24
Independent Claim
189 words
A method of polymerizing an ethylenically unsaturated monomer which comprises heating said ethylenically unsaturated monomer in the presence of a catalyst of the general formula ##STR21## where Q is a ligand containing the ring ##STR22## R is selected from the group consisting of hydrogen, N(R') 2 , OR', and R', each R' is independently selected from the group consisting of alkyl from C 1 to C 10 , aryl from C 6 to C 15 , alkaryl from C 7 to C 15 , and aralkyl from C 7 to C 15 , each X is independently selected from the group consisting of hydrogen, halogen, alkoxy from C 1 to C 10 , dialkylamino from C 1 to C 10 , methyl, ##STR23## each R 1 is independently selected from the group consisting of halogen, alkoxy from C 1 to C 10 , and R', L is selected from the group consisting of ##STR24## Q, and X, where L can be bridged to Q, B L is an optional Lewis base, "n" is 0 to 5, and M is selected from the group consisting of titanium, zirconium, and hafnium.
Claim 25
Independent Claim
189 words
A method of polymerizing an ethylenically unsaturated monomer which comprises heating said ethylenically unsaturated monomer in the presence of a catalyst of the general formula ##STR21## where Q is a ligand containing the ring ##STR22## R is selected from the group consisting of hydrogen, N(R') 2 , OR', and R', each R' is independently selected from the group consisting of alkyl from C 1 to C 10 , aryl from C 6 to C 15 , alkaryl from C 7 to C 15 , and aralkyl from C 7 to C 15 , each X is independently selected from the group consisting of hydrogen, halogen, alkoxy from C 1 to C 10 , dialkylamino from C 1 to C 10 , methyl, ##STR23## each R 1 is independently selected from the group consisting of halogen, alkoxy from C 1 to C 10 , and R', L is selected from the group consisting of ##STR24## Q, and X, where L can be bridged to Q, B L is an optional Lewis base, "n" is 0 to 5, and M is selected from the group consisting of titanium, zirconium, and hafnium.
Claim 26
Independent Claim
72 words
A method of polymerizing monomer that comprises ethylene or a mixture of ethylene and a monomer copolymerizable therewith comprising heating said monomer in the presence of a catalyst having the general formula ##STR25## where Q is bora-benzene, bora-naphthalene, or bora-anthracene, or phenyl, each X is independently selected from chlorine or methyl, L is Q, cyclopentadienyl, or chlorine, where L can be bridged to Q, and B L is an optional Lewis base.
Claim 27
Independent Claim
72 words
A method of polymerizing monomer that comprises ethylene or a mixture of ethylene and a monomer copolymerizable therewith comprising heating said monomer in the presence of a catalyst having the general formula ##STR25## where Q is bora-benzene, bora-naphthalene, or bora-anthracene, or phenyl, each X is independently selected from chlorine or methyl, L is Q, cyclopentadienyl, or chlorine, where L can be bridged to Q, and B L is an optional Lewis base.
Claim 28
Dependent Claim
17 words
The method of claim 24 wherein said catalyst comprises β-dimethylaminoborobenzene cyclopentadienylzirconium dichloride or cyclopentadienyl (9-mesitylboraanthracenyl) zirconium dichloride.
References Cited (Backward Citations)
US5457171A
Cited
US5468889A
Cited
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