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US4965341A
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Polymerization of co/olefin with catalyst comprising sulfur bidentate ligand
Assignee: Shell USA Inc
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Filing: 1989-05-15
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Granted: 1990-10-23
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Expires: 2009-05-15
Abstract
Abstract Polymers of carbon monoxide and one or more olefinically unsaturated compounds are prepared by contacting with a catalyst composition comprising a Group VIII metal and a compound of the general formula R<1>M<1>-R-M<2>R<2> wherein M<1> and M<2> are chosen from sulphur, selenium and tellurium, R<1> and R<2> represent optionally polar-substituted hydrocarbyl groups and R represents a bivalent bridging group containing at least two carbon atoms in the bridge.
Inventors
- 👤 Johannes A. Van Doorn
- 👤 Eit Drent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:03
CPC Classifications
C; C08; C08F; C08F4/00; C08G; C08G67/00; C08G67/02; B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2204; B01J31/226; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
74 words
In the process for the production of linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon by contacting carbon monoxide and at least one ethylenically unsaturated hydrocarbon under polymerization conditions in the presence of a catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa below 2 and a bidentate ligand, the improvement of employing as the bidentate ligand a bidentate ligand of sulfur.
Claim 2
Dependent Claim
74 words
In the process for the production of linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon by contacting carbon monoxide and at least one ethylenically unsaturated hydrocarbon under polymerization conditions in the presence of a catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa below 2 and a bidentate ligand, the improvement of employing as the bidentate ligand a bidentate ligand of sulfur.
Claim 3
Dependent Claim
53 words
The process of claim 1 wherein the bidentate ligand of sulfur has up to 20 carbon atoms and contains two atoms of sulfur connected by a bridging group having at least 2 carbon atoms in the bridge and each sulfur is substituted with an organic radical which is aliphatic, aromatic, alkylaromatic or arylaliphatic.
Claim 4
Dependent Claim
41 words
The process of claim 2 wherein the bidentate sulfur ligand is represented by the formula R-S-R'-S-R wherein R independently is alkyl, aryl, alkaryl or aralkyl and R' is aromatic, saturated or ethylenically unsaturated hydrocarbyl of up to 8 carbon atoms inclusive.
Claim 5
Dependent Claim
17 words
The process of claim 3 wherein R' is alkylene of from 2 to 4 carbon atoms inclusive.
Claim 6
Dependent Claim
19 words
The process of claim 4 wherein the catalyst composition is formed in the presence of an organic oxidizing agent.
Claim 7
Dependent Claim
14 words
The process of claim 5 wherein the agent is selected from 1,4-benzoquinone or 2,4-dinitrotoluene.
Claim 8
Dependent Claim
13 words
The process of claim 4 wherein R is ethyl and R' is 1,2-ethylene.
Claim 9
Dependent Claim
13 words
The process of claim 4 wherein R is benzyl and R' is 1,2-ethylene.
Claim 10
Dependent Claim
107 words
In the process of producing a linear alternating copolymer of carbon monoxide and ethylene by contacting the carbon monoxide and ethylene under polymerization cxonditions in the presence of a catalyst formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa below 2, a bidentate ligand and an organic oxidizing agent, the improvement of employing as the bidentate ligand a bidentate ligand of sulfur having up to 20 carbon atoms and 2 sulfur atoms connected by a bridging group having at least 2 carbon atoms in the bridge and each sulfur is substituted with an organic radical which is aliphatic, aromatic, alkylaromatic or arylaliphatic.
Claim 11
Dependent Claim
107 words
In the process of producing a linear alternating copolymer of carbon monoxide and ethylene by contacting the carbon monoxide and ethylene under polymerization cxonditions in the presence of a catalyst formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa below 2, a bidentate ligand and an organic oxidizing agent, the improvement of employing as the bidentate ligand a bidentate ligand of sulfur having up to 20 carbon atoms and 2 sulfur atoms connected by a bridging group having at least 2 carbon atoms in the bridge and each sulfur is substituted with an organic radical which is aliphatic, aromatic, alkylaromatic or arylaliphatic.
Claim 12
Dependent Claim
10 words
The process of claim 9 wherein the ligand is 1,2-di(ethylthio)ethane.
Claim 13
Dependent Claim
10 words
The process of claim 9 wherein the ligand is cis-1,2-di(benzylthio)ethene.
Claim 14
Dependent Claim
108 words
In the process of producing a linear alternating copolymer of carbon monoxide and styrene by contacting the carbon monoxide and styrene under polymerization conditions in the presence of a catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa below 2, a bidentate ligand and an organic oxidizing agent, the improvement of employing as the bidentate ligand a bidentate ligand of sulfur having up to 20 carbon atoms and 2 sulfur atoms connected by a bridging group having at least 2 carbon atoms in the bridge and each sulfur is substituted with an organic radical which is aliphatic, aromatic, alkylaromatic or arylaliphatic.
Claim 15
Dependent Claim
108 words
In the process of producing a linear alternating copolymer of carbon monoxide and styrene by contacting the carbon monoxide and styrene under polymerization conditions in the presence of a catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa below 2, a bidentate ligand and an organic oxidizing agent, the improvement of employing as the bidentate ligand a bidentate ligand of sulfur having up to 20 carbon atoms and 2 sulfur atoms connected by a bridging group having at least 2 carbon atoms in the bridge and each sulfur is substituted with an organic radical which is aliphatic, aromatic, alkylaromatic or arylaliphatic.
Claim 16
Dependent Claim
10 words
The process of claim 12 wherein the ligand is 1,2-di(ethylthio)ethane.
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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) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |