EP0181014A1
Expired / Lapsed
EP
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Process for the preparation of polyketones
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1985-09-10
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Granted: —
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Expires: 2005-09-10
Abstract
Abstract Process for the preparation of polyketones by polymerization of a mixture of CO and an alkenically unsaturated hydrocarbon in the presence of a Group-VIII-metal catalyst containing ligands, wherein hydrocarbon groups occur which are bound to an element from Group V a, characterized in that the catalyst used is a complex compound obtained by reaction of a palladium, cobalt or nickel compound, an anion of a carboxylic acid with a pKa lower than 2, and a bidentate liqand of the general formula R 1 R 2 -M-R-M-R 3 R 4 , wherein M represents phosphorus, arsenic or antimony, R', R 2 , R 3 and R 4 are similar or dissimilar hydrocarbon groups, R is divalent organic bridging group not causing steric hindrance.
Inventors
- 👤 Eit Drent
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 02:27
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
142 words
Process for the preparation of polyketones by polymerization of a mixture of CO and an alkenically unsaturated hydrocarbon in the presence of a Group-VIII-metal catalyst containing ligands, wherein hydrocarbon groups occur which are bound to an element from Group V a, characterized in that the catalyst used is a complex compound obtained by reaction of a palladium, cobalt or nickel compound, an anion of a carboxylic acid with a pKa lower than 2 and a bidentate ligand of the general formula R 1 R 2 -M-R-R 3 R 4 , wherein M represents phosphorus, arsenic or antimony, R represents a divalent organic bridging group having at least two carbon atoms in the bridge, none of these carbon atoms carrying substituents that may cause steric hindrance, R 1 , R 2 , R 3 and R 4 are similar or dissimilar hydrocarbon groups.
Claim 2
Dependent Claim
142 words
Process for the preparation of polyketones by polymerization of a mixture of CO and an alkenically unsaturated hydrocarbon in the presence of a Group-VIII-metal catalyst containing ligands, wherein hydrocarbon groups occur which are bound to an element from Group V a, characterized in that the catalyst used is a complex compound obtained by reaction of a palladium, cobalt or nickel compound, an anion of a carboxylic acid with a pKa lower than 2 and a bidentate ligand of the general formula R 1 R 2 -M-R-R 3 R 4 , wherein M represents phosphorus, arsenic or antimony, R represents a divalent organic bridging group having at least two carbon atoms in the bridge, none of these carbon atoms carrying substituents that may cause steric hindrance, R 1 , R 2 , R 3 and R 4 are similar or dissimilar hydrocarbon groups.
Claim 3
Dependent Claim
16 words
A process as claimed in claim 1, characterized in that the carboxylic acid is trifluoroacetic acid.
Claim 4
Dependent Claim
33 words
A process as claimed in claim 1 or 2, characterized in that the hydrocarbon groups R 1 , R 2 , R and R are aryl groups con - taining 6-14 carbon atoms.
Claim 5
Dependent Claim
16 words
A process as claimed in claim 3, characterized in that the aryl groups are phenyl groups.
Claim 6
Dependent Claim
22 words
A process as claimed in claims 1-4, characterized in that 0.1-10 mol of bidentate ligand is used per mol of Group-VIII-metal compound.
Claim 7
Dependent Claim
15 words
A process as claimed in claims 1-5, characterized in that a palladium compound is used.
Claim 8
Dependent Claim
17 words
A process as claimed in claims 1-6, characterized in that a phosphine is employed as bidentate ligand.
Claim 9
Dependent Claim
20 words
A process as claimed in claims 1-7, characterized in that the substituents R 5 and R 6 are hydrogen atoms.
Claim 10
Dependent Claim
16 words
A process as claimed in claims 1-8, characterized inthat ethylene is used as alkenically unsaturated hydrocarbon.
References Cited (Backward Citations)
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