US6034027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Borabenzene based olefin polymerization catalysts containing a group 3-10 metal
Assignee: Equistar Chemicals LP
•
Filing: 1997-06-10
•
Granted: 2000-03-07
•
Expires: 2017-06-10
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 , 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 one π-ligand can be bridged to second π-ligand, B is an optional base, "n" is 0 to 5, and M is a Group 3-10 metal.
Inventors
- 👤 Ramesh Krishnamurti
- 👤 Sandor Nagy
- 👤 Bradley P. Etherton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:16
CPC Classifications
C; C08; C08F; C08F10/00; C08F110/00; C08F110/02; C08F210/00; C08F210/16; C08F2420/00; C08F2420/02; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/619; C08F4/61912; C08F4/6192; C08F4/62; C08F4/639; C08F4/64; C08F4/659; C08F4/6592
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
202 words
A catalyst having the general formula ##STR23## Q is a ligand containing the ring ##STR24## wherein R' is hydrogen or R; two adjacent R groups may be joined to form a C 4 -C 10 ring; R is a C 1 to C 20 aliphatic or cycloaliphatic radical; a C 6 -C 30 aryl radical, or a C 7 -C 30 aralkyl or alkaryl radical; R 5 is R', --Si(R) 3 , --M 2 (R), --M 3 (R) 2 ; --M 2 is a Group 16 element; --M 3 is a Group 15 element; and each X is hydrogen, halogen, a C 1 to C 10 alkoxy group, a C 1 to C 10 dialkylamino group, methyl, ##STR25## each R 1 is halogen, a C 1 to C 10 alkoxy group or R', L is a ligand selected from the group consisting of ##STR26## Q, and X, where Q or L can be bridged to a second Q or L group, B L is an optional Lewis base; n is 0 to 5; M is a Group 3-10 metal; a is 1 to 3; b is 0to 2; a+b<3; c is 1 to 6; and a+b+c equals the oxidation state of M.
Claim 2
Dependent Claim
202 words
A catalyst having the general formula ##STR23## Q is a ligand containing the ring ##STR24## wherein R' is hydrogen or R; two adjacent R groups may be joined to form a C 4 -C 10 ring; R is a C 1 to C 20 aliphatic or cycloaliphatic radical; a C 6 -C 30 aryl radical, or a C 7 -C 30 aralkyl or alkaryl radical; R 5 is R', --Si(R) 3 , --M 2 (R), --M 3 (R) 2 ; --M 2 is a Group 16 element; --M 3 is a Group 15 element; and each X is hydrogen, halogen, a C 1 to C 10 alkoxy group, a C 1 to C 10 dialkylamino group, methyl, ##STR25## each R 1 is halogen, a C 1 to C 10 alkoxy group or R', L is a ligand selected from the group consisting of ##STR26## Q, and X, where Q or L can be bridged to a second Q or L group, B L is an optional Lewis base; n is 0 to 5; M is a Group 3-10 metal; a is 1 to 3; b is 0to 2; a+b<3; c is 1 to 6; and a+b+c equals the oxidation state of M.
Claim 3
Dependent Claim
30 words
A catalyst according to claim 1 wherein a+b≦2 when the oxidation state of M is 4 or less and a+b≦3 when the oxidation state of M is greater than 4.
Claim 4
Dependent Claim
18 words
A catalyst according to claim 2, wherein a+b≦2 when the oxidation state of M is greater than 4.
Claim 5
Dependent Claim
15 words
A catalyst according to claim 1 wherein M is a Group 5 or 6 metal.
Claim 6
Dependent Claim
13 words
A catalyst according to claim 1 wherein each X is chlorine or methyl.
Claim 7
Dependent Claim
12 words
A catalyst according to claim 1 wherein L is cyclopentadienyl or chlorine.
Claim 8
Dependent Claim
17 words
A catalyst according to claim 1 wherein Q is ##STR27## and R is --N(R') 2 or phenyl.
Claim 9
Dependent Claim
10 words
A catalyst according to claim 7 wherein Q is ##STR28##
Claim 10
Dependent Claim
9 words
A catalyst according to claim 1 wherein Q is
Claim 11
Dependent Claim
15 words
A catalyst according to claim 1 wherein Q is where "m" is 0 to 9.
Claim 12
Dependent Claim
26 words
A catalyst according to claim 1, wherein a is 2 or 3 and further wherein a bridging group links 2 of the ligands designated as "Q".
Claim 13
Dependent Claim
23 words
A catalyst according to claim 1, wherein the bridging group is methylene, ethylene, 1,2-phenylene, dialkyl silyl, diaryl silyl, or an aklyl aryl silyl.
Claim 14
Dependent Claim
14 words
A catalyst according to claim 12, wherein the catalyst is of the formula: ##STR29##
Claim 15
Dependent Claim
13 words
A catalyst according to claim 12, wherein the catalyst is of the formula:
Claim 16
Dependent Claim
13 words
A catalyst according to claim 12, wherein the catalyst is of the formula:
Claim 17
Dependent Claim
20 words
A method of polymerizing an α-olefin comprising heating said α-olefin in the presence of a catalyst according to claim 1.
Claim 18
Dependent Claim
15 words
The method according to claim 16, wherein M is a Group 4 to 6 metal.
Claim 19
Dependent Claim
106 words
A catalyst having the general formula each X is independently selected from the group consisting of chlorine and methyl, L is Q, ##STR30## or chlorine, R is --N(CH 3 ) 2 or alkyl substituted phenyl from C 7 to C 15 , B L is an optional Lewis base, M is a Group 3 or Group 5-10 metal, R' is hydrogen or a C 1 -C 6 alkyl group; R 1 is halogen or R'; R 5 is R' or Si(R) 3 ; a is 1 to 3; b is 0to 2; a+b≦3; c is 1 to 6; and a+b+c equals the oxidation state of M.
Claim 20
Dependent Claim
106 words
A catalyst having the general formula each X is independently selected from the group consisting of chlorine and methyl, L is Q, ##STR30## or chlorine, R is --N(CH 3 ) 2 or alkyl substituted phenyl from C 7 to C 15 , B L is an optional Lewis base, M is a Group 3 or Group 5-10 metal, R' is hydrogen or a C 1 -C 6 alkyl group; R 1 is halogen or R'; R 5 is R' or Si(R) 3 ; a is 1 to 3; b is 0to 2; a+b≦3; c is 1 to 6; and a+b+c equals the oxidation state of M.
Claim 21
Dependent Claim
16 words
The catalyst according to claim 18, wherein M is a Group 3 or Group 5-7 metal.
Claim 22
Dependent Claim
13 words
The catalyst according to claim 19 wherein M is a Group 5-6 metal.
Claim 23
Dependent Claim
24 words
A catalyst which comprises an organometallic complex comprising a Group 3-10 metal, M, and at least one boraaryl ligand that is π-bonded to M.
Claim 24
Dependent Claim
24 words
A catalyst which comprises an organometallic complex comprising a Group 3-10 metal, M, and at least one boraaryl ligand that is π-bonded to M.
Claim 25
Dependent Claim
30 words
A catalyst system which comprises: (a) an organometallic complex comprising a Group 3-10 metal, M, and at least one boraaryl ligand that is π-bonded to M; and (b) a co-catalyst.
Claim 26
Dependent Claim
30 words
A catalyst system which comprises: (a) an organometallic complex comprising a Group 3-10 metal, M, and at least one boraaryl ligand that is π-bonded to M; and (b) a co-catalyst.
Claim 27
Dependent Claim
16 words
A process which comprises polymerizing an olefin in the presence of the catalyst of claim 21.
Claim 28
Dependent Claim
17 words
A process which comprises polymerizing an olefin in the presence of the catalyst system of claim 22.
References Cited (Backward Citations)
US5468889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-03-07 | 2003-09-06 | 2004-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-03-07 | 2007-09-06 | 2008-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-03-07 | 2011-09-06 | 2012-03-07 | $7700.00 | Window Closed / Lapsed |