EP0340844A2
Expired / Lapsed
EP
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Process for the preparation of polymers of carbon monoxide with unsaturated compounds
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1989-04-25
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Granted: —
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Expires: 2009-04-25
Abstract
Abstract Process for the preparation of polymers, characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated compounds is polymerized by contacting the mixture at an elevated temperature and pressure with a solution of a palladium-containing catalyst composition in a diluent in which the polymers are insoluble or virtually insoluble, and in that, before the monomers are contacted with the catalyst solution, a solid matter is suspended in the diluent, in a quantity which is given by the formula a ≧ 100 x b x c, wherein a represents the number of grams of the solid matter per litre of diluent, b is the average particle size of the solid matter expressed in metres and c the bulk density of the solid matter expressed in kg/m³ .
Inventors
- 👤 Jacobus Adrianus Bakkum
- 👤 Gerrit Gerardus Rosenbrand
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 20:30
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
130 words
Process for the preparation of polymers, characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated compounds is polymerized by contacting the mixture at an elevated temperature and pressure with a solution of a palladium-containing catalyst composition in a diluent in which the polymers are insoluble or virtually insoluble, and in that, before the monomers are contacted with the catalyst solution, a solid matter is suspended in the diluent, in a quantity which is given by the formula a ≧ 100 x b x c, wherein a represents the number of grams of the solid matter per litre of diluent, b is the average particle size of the solid matter expressed in metres and c the bulk density of the solid matter expressed in kg/m³ .
Claim 2
Dependent Claim
130 words
Process for the preparation of polymers, characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated compounds is polymerized by contacting the mixture at an elevated temperature and pressure with a solution of a palladium-containing catalyst composition in a diluent in which the polymers are insoluble or virtually insoluble, and in that, before the monomers are contacted with the catalyst solution, a solid matter is suspended in the diluent, in a quantity which is given by the formula a ≧ 100 x b x c, wherein a represents the number of grams of the solid matter per litre of diluent, b is the average particle size of the solid matter expressed in metres and c the bulk density of the solid matter expressed in kg/m³ .
Claim 3
Dependent Claim
40 words
A process as claimed in claim 1, characterized in that the quantity of solid matter (a) that is suspended in the diluent is given by the relation 1000 x b x c ≧ a ≧ 100 x b x c.
Claim 4
Dependent Claim
29 words
A process as claimed in claim 1 or 2, characterized in that the solid matter that is suspended in the diluent has an average particle size of 10⁻⁶-10⁻³ m.
Claim 5
Dependent Claim
31 words
A process as claimed in one or more of claims 1-3, characterized in that the solid matter that is suspended in the diluent has a bulk density of 50-1000 kg/m³ .
Claim 6
Dependent Claim
79 words
A process as claimed in one or more of claims 1-4, characterized in that the solid matter that is suspended in the diluent has a bulk density which is higher than or as high as the bulk density of the polymer which under the given reaction conditions will be obtained when no polymer is suspended in the diluent, and that the suspended solid is a polymer whose composition corresponds as much as possible with the polymer to be prepared.
Claim 7
Dependent Claim
31 words
A process as claimed in claim 1, characterized in that the composition of the solid matter that is suspended in the diluent differs from that of the polymer to be prepared.
Claim 8
Dependent Claim
34 words
A process as claimed in claim 6, characterized in that the quantity of solid matter (a) that is suspended in the diluent is given by the formula a > 1000 x b x c.
Claim 9
Dependent Claim
90 words
A process as claimed in one or more of claims 1-7, characterized in that a catalyst composition is used which is based upon a) a palladium compound, b) an anion of an acid with a pKa of less than 6, and c) a diphosphine of the general formula R¹ R² P-R-PR³ R⁴ , wherein R¹ , R² , R³ and R⁴ represent the same or different hydrocarbyl groups which may optionally be polarly substituted and R represents a bivalent bridging group containing at least two carbon atoms in the bridge.
Claim 10
Dependent Claim
74 words
A process as claimed in claim 8, characterized in that it is carried out at a temperature of 50-100 o C, a pressure of 30-100 bar and a molar ratio in the mixture to be polymerized, of the olefinically unsaturated compounds relative to carbon monoxide, of 5:1-1:2, and in that per mol of olefinically unsaturated compound to be polymerized, such a quantity of catalyst composition is used as to contain 10⁻⁶-10⁻⁴ mol of palladium.
References Cited (Backward Citations)
No citation records indexed.
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