EP0222454B1
Expired / Lapsed
EP
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Novel catalyst compositions and process for copolymerizing ethene and carbon monoxide
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1986-11-06
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Granted: 1993-09-29
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Expires: 2006-11-06
Abstract
No abstract record available.
Inventors
- 👤 Eit Drent
- 👤 Richard Lewin Wife
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 21:50
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/24; B01J31/2404; B01J31/2409; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/5027; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/824; B01J2531/84; B01J2531/845; B01J2531/847; B01J31/1895
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
117 words
Process for the preparation of catalyst compositions, which process comprises contacting :- a) a compound of a Group VIII metal chosen from palladium, cobalt and nickel, b) an anion of an acid with a pKa of less than 6, and c) a bidentate ligand of the general formula R¹R²-M-R-M-R³R⁴, wherein M represents phosphorus, arsenic or antimony, R is a bivalent organic bridging group containing two or three carbon atoms in the bridge, and R¹, R², R³ and R⁴ represent hydrocarbon groups which may or may not be substituted with polar substituents, characterized in that at least one hydrogen atom in at least one of the groups R¹, R², R³ and R⁴ is substituted with a polar substituent.
Claim 2
Dependent Claim
18 words
Process as claimed in claim 1, characterized in that the Group VIII metal compound is a palladium acetate.
Claim 3
Dependent Claim
19 words
Process as claimed in claim 1 or 2 in which the acid has a pKa of less than 4.
Claim 4
Dependent Claim
17 words
Process as claimed in claim 3 in which the acid has a pKa of less than 2.
Claim 5
Dependent Claim
19 words
Process as claimed in claim 4, characterized in that the acid is a sulphonic acid or a carboxylic acid.
Claim 6
Dependent Claim
25 words
Process as claimed in any one of claims 1-5, characterized in that the bivalent organic bridging group R contains three carbon atoms in the bridge.
Claim 7
Dependent Claim
19 words
Process as claimed in any one of claims 1-6, characterized in that M in the bidentate ligand represents phosphorus.
Claim 8
Dependent Claim
31 words
Process as claimed in any one of claims 1-7, characterized in that the polar substituents occurring in the groups R¹, R², R³ and R⁴ are alkoxy groups such as methoxy groups.
Claim 9
Dependent Claim
17 words
Process as claimed in any one of claims 1-8, characterized in that the bidentate ligand is 1,3-bis(di-p-methoxyphenylphosphine)propane.
Claim 10
Dependent Claim
48 words
Process for the preparation of polymers, characterized in that a mixture of carbon monoxide and ethene and, if appropriate, also one or more other olefinically unsaturated hydrocarbons, is polymerized by using a catalyst composition which is prepared by a process as claimed in any one of claims 1-9.
Claim 11
Dependent Claim
29 words
Process as claimed in claim 10, characterized in that in the mixture to be polymerized the molar ratio of the olefinically unsaturated hydrocarbons relative to carbon monoxide is 5:1-1:2.
Claim 12
Dependent Claim
37 words
Process as claimed in claim 10 or 11, characterized in that the polymerization is carried out in a liquid diluent, such as a lower alcohol, at a temperature of 30-100 °C and a pressure of 20-100 bar.
References Cited (Backward Citations)
No citation records indexed.
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