US4808699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing polymers of carbon monoxide and ethylene under specified pressures
Assignee: Shell USA Inc
•
Filing: 1987-03-24
•
Granted: 1989-02-28
•
Expires: 2007-03-24
Abstract
Abstract The invention is a process for preparing a linear alternating polymer which process comprises contacting ethylene and carbon monoxide in the presence of a catalyst, at a total pressure within the range of 100 to about 250 bar and an ethylene/carbon monoxide partial pressure ratio from about 0.75 to about 3, wherein the catalyst comprise (1) a Group VIII metal compound of palladium, cobalt or nickel, (2) an anion of a non-hydrohalogenic acid with a pKa less than 6 and (3) a bidentate phosphorus, arsenic or antimony ligand.
Inventors
- 👤 Johannes A. M. Van Broekhoven
- 👤 Michael J. Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:42
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1895; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2239; B01J31/24; B01J31/2404; B01J31/2409; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/824
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
150 words
A process for preparing a linear alternating polymer which process comprises contacting ethylene and carbon monoxide in the presence of a catalyst, at a total pressure within the range of 100 to about 250 bar and an ethylene/carbon monoxide partial pressure ratio from about 0.75 to about 3, wherein the catalyst comprises (1) a compound of a Group VIII metal selected from the group consisting of palladium, cobalt, and nickel, (2) an anion of a non-hydrohalogenic acid with a pKa less than 6 and (3) a bidentate ligand of the general formula ##STR3## wherein M is selected from the group consisting of phosphorus, arsenic or antimony, R is a bivalent organic bridging group containing at least two carbon atoms in the bridge and R 1 , R 2 , R 3 and R 4 are substituted or unsubstituted hydrocarbon groups, and under conditions suitable to prepare a linear alternating polymer.
Claim 2
Dependent Claim
150 words
A process for preparing a linear alternating polymer which process comprises contacting ethylene and carbon monoxide in the presence of a catalyst, at a total pressure within the range of 100 to about 250 bar and an ethylene/carbon monoxide partial pressure ratio from about 0.75 to about 3, wherein the catalyst comprises (1) a compound of a Group VIII metal selected from the group consisting of palladium, cobalt, and nickel, (2) an anion of a non-hydrohalogenic acid with a pKa less than 6 and (3) a bidentate ligand of the general formula ##STR3## wherein M is selected from the group consisting of phosphorus, arsenic or antimony, R is a bivalent organic bridging group containing at least two carbon atoms in the bridge and R 1 , R 2 , R 3 and R 4 are substituted or unsubstituted hydrocarbon groups, and under conditions suitable to prepare a linear alternating polymer.
Claim 3
Dependent Claim
18 words
The process of claim 1 wherein the ethylene/carbon monoxide partial pressure ratio is about 0.80 to about 2.5.
Claim 4
Dependent Claim
18 words
The process of claim 1 wherein the ethylene/carbon monoxide partial pressure ratio is about 0.85 to about 2.
Claim 5
Dependent Claim
16 words
The process of claim 1 wherein contacting temperature is from about 20° to about 200° C.
Claim 6
Dependent Claim
16 words
The process of claim 1 wherein contacting temperature is from about 30° to about 150° C.
Claim 7
Dependent Claim
26 words
The process of claim 1 wherein the process is carried out by contacting the monomers with a catalyst in the presence of a liquid diluting agent.
Claim 8
Dependent Claim
15 words
The process of claim 1 wherein the Group VIII metal compound is a palladium compound.
Claim 9
Dependent Claim
19 words
The process of claim 1 wherein the Group VIII metal compound is a palladium salt of a carboxylic acid.
Claim 10
Dependent Claim
47 words
The process of claim 1 wherein the anion of a non-hydrohalogenic acid having a pKa less than 6 is an anion of an acid selected from the group consisting of sulfonic acids having a pKa less than 2 and carboxylic acids having a pKa less than 2.
Claim 11
Dependent Claim
32 words
The process of claim 1 wherein the anion of a non-hydrohalogenic acid having a pKa less than 6 is an acid selected from the group consisting of para-toluenesulfonic acid and trifluoroacetic acid.
Claim 12
Dependent Claim
34 words
The process of claim 1 wherein quantity of the anion of an acid having a pKa less than 6 is from about 0.5 to about 200 equivalents per gram atom of Group VIII metal.
Claim 13
Dependent Claim
9 words
The process of claim 1 wherein M is phosphorus.
Claim 14
Dependent Claim
26 words
The process of claim 1 wherein quantity of the bidentate ligand is from about 0.1 to about 5.0 mol per mol of Group VIII metal compound.
Claim 15
Dependent Claim
26 words
The process of claim 1 wherein quantity of the bidentate ligand is from about 0.5 to about 1.5 mol per mol of Group VIII metal compound.
Claim 16
Dependent Claim
19 words
The process of claim 1 wherein the divalent organic bridging group R contains three carbon atoms in the bridge.
Claim 17
Dependent Claim
28 words
The process of claim 1 wherein the hydrocarbon groups R 1 , R 2 , R 3 , and R 4 each contain 6 to 14 carbon atoms.
Claim 18
Dependent Claim
19 words
The process of claim 1 wherein the bidentate ligand is selected from the group consisting of 1,3-bis(diphenylphosphino)propane, and 2-methyl-2(methyldiphenylphosphino)-1,3-bis(diphenylphosphino)propane.
Claim 19
Dependent Claim
29 words
The process of claim 1 wherein quantity of the catalyst is from about 10 -7 to about 10 -3 gram atom of Group VIII metal per mol of ethylene.
Claim 20
Dependent Claim
131 words
A process for preparing a linear alternating polymer of carbon monoxide and ethylene, which process comprises contacting ethylene and carbon monoxide at a total pressure within the range of 100 to about 250 bar and an ethylene/carbon monoxide partial pressure ratio from about 0.85 to about 2, and in the presence of a catalyst obtained from (1) a palladium compound, (2) an anion of a non-hydrohalogenic acid having a pKa less than 2 and (3) a bidentate ligand of the general formula ##STR4## wherein R is a bivalent organic bridging group having a bridge containing three carbon atoms and R 1 , R 2 , R 3 and R 4 are unsubstituted or substituted hydrocarbon groups wherein the substituents are polar, and under conditions suitable to prepare a linear alternating polymer.
Claim 21
Dependent Claim
131 words
A process for preparing a linear alternating polymer of carbon monoxide and ethylene, which process comprises contacting ethylene and carbon monoxide at a total pressure within the range of 100 to about 250 bar and an ethylene/carbon monoxide partial pressure ratio from about 0.85 to about 2, and in the presence of a catalyst obtained from (1) a palladium compound, (2) an anion of a non-hydrohalogenic acid having a pKa less than 2 and (3) a bidentate ligand of the general formula ##STR4## wherein R is a bivalent organic bridging group having a bridge containing three carbon atoms and R 1 , R 2 , R 3 and R 4 are unsubstituted or substituted hydrocarbon groups wherein the substituents are polar, and under conditions suitable to prepare a linear alternating polymer.
Claim 22
Dependent Claim
16 words
The process of claim 19 wherein the palladium compound is a salt of a carboxylic acid.
Claim 23
Dependent Claim
16 words
The process of claim 20 wherein the anion is provided in the form of an acid.
Claim 24
Dependent Claim
16 words
The process of claim 21 wherein the acid is selected from para-toluenesulfonic acid and trifluoroacetic acid.
Claim 25
Dependent Claim
20 words
The process of claim 22 wherein the bidentate ligand is selected from the group consisting of 1,3-bis(diphenylphosphino)propane, 1,3-bis(di-p-methoxyphenylphosphino)propane and 2-methyl-2-(methyldiphenylphosphino)-1,3-bis(diphenylphosphino)propane.
Claim 26
Dependent Claim
16 words
The process of claim 21 wherein contacting temperature is from about 30° to about 150° C.
Claim 27
Dependent Claim
16 words
The process of claim 1, wherein the total pressure is about 125 to about 175 bar.
Claim 28
Dependent Claim
16 words
The process of claim 19, wherein the total pressure is about 125 to about 175 bar.
References Cited (Backward Citations)
GB181014A
Cited
US2495286A
Cited
US3448140A
Cited
GB1081304A
Cited
US3689460A
Cited
US3694412A
Cited
US3780140A
Cited
US3835123A
Cited
US3914391A
Cited
US4070532A
Cited
US3984388A
Cited
US4076911A
Cited
GB2058074A
Cited
US4474978A
Cited
US4424317A
Cited
EP0121965A2
Cited
US4634793A
Cited
US4599476A
Cited
EP0213671A1
Cited
JPH0448406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-28 | 1992-08-29 | 1993-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-28 | 1996-08-29 | 1997-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-28 | 2000-08-29 | 2001-02-28 | $7700.00 | Window Closed / Lapsed |