Patent EP0305011A2 successfully refreshed from Google Patents.
EP0305011A2
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Preparation of olefin/CO copolymers
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1988-08-24
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Granted: —
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Expires: 2008-08-24
Abstract
Abstract Process for the preparation of copolymers, characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated compounds is copolymerized by continuously contacting the mixture in steady state with a solution of a palladium-containing catalyst composition in the presence of liquid diluent in which the copolymers are almost or entirely insoluble, the quotient of the quantity of copolymer formed per hour and the quantity of copolymer in the reactor at any moment being less than 0.2.
Inventors
- 👤 Maarten Marinus Geuze
- 👤 Gerrit Gerardus Rosenbrand
- 👤 James Arthur Salter
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 21:11
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
79 words
Process for the preparation of copolymers, characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated compounds is copolymerized by continuously contacting the mixture in steady state with a solution of a palladium-containing catalyst composition in the presence of liquid diluent in which the copolymers are almost or entirely insoluble, the quotient of the quantity of copolymer formed per hour and the quantity of copolymer in the reactor at any moment being less than 0.2.
Claim 2
Dependent Claim
79 words
Process for the preparation of copolymers, characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated compounds is copolymerized by continuously contacting the mixture in steady state with a solution of a palladium-containing catalyst composition in the presence of liquid diluent in which the copolymers are almost or entirely insoluble, the quotient of the quantity of copolymer formed per hour and the quantity of copolymer in the reactor at any moment being less than 0.2.
Claim 3
Dependent Claim
14 words
Process according to claim 1, characterized in that said quotient is less than 0.15.
Claim 4
Dependent Claim
14 words
Process according to claim 2, characterized in that said quotient is less than 0.1.
Claim 5
Dependent Claim
103 words
Process according to one or more of claims 1-3, characterized in that a catalyst composition is applied on the basis of a) a palladium compound, b) an anion of an acid with a pKa of less than 6, and c) a compound with the general formula R₁R₂M₁-R-M₂R₃R₄ in which M₁ and M₂ are the same or different elements selected from the group formed by arsenic, antimony, phosphorus and nitrogen, in which R₁ to R₄ represent the same or different hydrocarbons, optionally substituted by polar groups, and in which R represents a divalent bridging group containing at least two carbon atoms in the bridge.
Claim 6
Dependent Claim
29 words
Process according to claim 4, characterized in that a catalyst composition is applied in which component c) is present in a quantity of 0.75-1.5 mol per mol palladium compound.
Claim 7
Dependent Claim
42 words
Process according to claim 4, characterized in that a catalyst composition is applied in which at least one of the groups R₁ to R₄ present in component c) are phenyl groups which contain at least one polar substituent, preferably an ortho-alkoxy group.
Claim 8
Dependent Claim
27 words
Process according to claim 6, characterized in that a catalyst composition is applied in which the groups R₁ to R₄ present in component c) are 2-methoxyphenyl groups.
Claim 9
Dependent Claim
26 words
Process according to one or more of claims 1-7, characterized in that ethylene or a mixture of ethylene with propene is applied as olefinically unsaturated compounds.
Claim 10
Dependent Claim
60 words
New copolymers of carbon monoxide with one or more olefinically unsaturated compounds (A), characterized in that a) they have a linear structure, b) they are built up of units with the general formula -(CO)-A′- in which A′ represents a monomer unit originating from a monomer A which was applied, and c) they have a bulk density greater than 0.3 g/ml.
Claim 11
Dependent Claim
60 words
New copolymers of carbon monoxide with one or more olefinically unsaturated compounds (A), characterized in that a) they have a linear structure, b) they are built up of units with the general formula -(CO)-A′- in which A′ represents a monomer unit originating from a monomer A which was applied, and c) they have a bulk density greater than 0.3 g/ml.
Claim 12
Dependent Claim
17 words
New copolymers as claimed in claim 9, in which the bulk density is at least 0.5 g/ml.
References Cited (Backward Citations)
No citation records indexed.
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