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US4420595A
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Process for the preparation of copolymers of ethylene with at least one other 1-alkene
Assignee: DSM BV
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Filing: 1981-07-10
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Granted: 1983-12-13
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Expires: 2001-07-10
Abstract
Abstract Process for the preparation of copolymers consisting of 25-85% by wt. of ethylene, 15-75% by wt. of at least one other 1-alkene and optionally up to 20% by wt. of a polyunsaturated compound with application of a catalyst system containing a compound of a metal from sub-groups IV-VI of the periodic system and a compound of a metal from groups I-III of the periodic system, in which at least one hydrocarbon group is bound directly to the metal atom via a carbon atom, the polymerization being carried out in the presence of certain halogen containing activators.
Inventors
- 👤 Georges G. Evens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:58
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
188 words
A process for copolymerization to form copolymers containing from 25-85 Wt.% of ethylene units, from 15-75 Wt.% of units of at least one other 1-alkene, and up to 20% of units of aliphatic or alicyclic polyunsaturated monomer of from 3 to 20 carbon atoms and having at least two carbon-carbon double bonds wherein the catalyst system employed contains (I) a compound of metal from Periodic Table Groups IVb-VIb, (II) a compound of metal from Periodic Table Groups I-III in which at least one hydrocarbon group is bound directly to the metal atom through a carbon atom in the presence of a halogen compound of the general formula ##STR5## wherein A is a phenyl or benzoyl group having from one to two substituent nitro groups, X is a chlorine or bromine atom, Y is a chlorine, bromine or hydrogen atom, or a hydrocarbon group of from 1 to 8 carbon atoms, and Z is a hydrogen atom or a group of one of the following formulae, wherein R and R' represent a hydrocarbon group of 1 to 8 carbon atoms and X' is a chlorine or bromine atom: ##STR6##
Claim 2
Dependent Claim
188 words
A process for copolymerization to form copolymers containing from 25-85 Wt.% of ethylene units, from 15-75 Wt.% of units of at least one other 1-alkene, and up to 20% of units of aliphatic or alicyclic polyunsaturated monomer of from 3 to 20 carbon atoms and having at least two carbon-carbon double bonds wherein the catalyst system employed contains (I) a compound of metal from Periodic Table Groups IVb-VIb, (II) a compound of metal from Periodic Table Groups I-III in which at least one hydrocarbon group is bound directly to the metal atom through a carbon atom in the presence of a halogen compound of the general formula ##STR5## wherein A is a phenyl or benzoyl group having from one to two substituent nitro groups, X is a chlorine or bromine atom, Y is a chlorine, bromine or hydrogen atom, or a hydrocarbon group of from 1 to 8 carbon atoms, and Z is a hydrogen atom or a group of one of the following formulae, wherein R and R' represent a hydrocarbon group of 1 to 8 carbon atoms and X' is a chlorine or bromine atom: ##STR6##
Claim 3
Dependent Claim
17 words
Process according to claim 1, characterized in that the halogen-containing compound contains one or two halogen atoms.
Claim 4
Dependent Claim
14 words
Process according to claim 1, characterized in that the halogen-containing compound is para-nitrobenzyl chloride.
Claim 5
Dependent Claim
34 words
Process according to any one of the claims 1, 2, or 3, characterized in that the catalyst system contains a vanadium compound which is soluble in the polymerization medium, and an alkyl aluminium halide.
Claim 6
Dependent Claim
24 words
Process according to any one of claims 1, 2 or 3, characterized in that the catalyst system contains vanadium oxytrichloride and ethyl aluminium sesquihalide.
Claim 7
Dependent Claim
40 words
Process according to any one of the claims 1, 2, or 3, characterized in that the halogen-containing compound is applied in such a quantity that the molar ratio relative to the metal from groups IV-VI is between 0.1:1 and 300:1.
Claim 8
Dependent Claim
39 words
Process according to any one of claim 1, 2 or 3, characterized in that the halogen-containing compound is applied in such a quantity that the molar ratio relative to the metal from groups IV-VI is between 1:1 and 50:1.
Claim 9
Dependent Claim
157 words
A process for copolymerization to form copolymers containing from 25-85 Wt.% of ethylene units, from 15-75 Wt.% of units of at least one other 1-alkene, and up to 20% of units of aliphatic or alicyclic polyunsaturated monomer of from 3 to 20 carbon atoms and having at least two carbon-carbon double bands wherein the catalyst system employed contains (I) vanadium oxytrichloride, (II) ethyl aluminum sesquihalide, in the presence of a halogen compound of the general formula: ##STR7## wherein A is a phenyl or benzoyl group having from one to two substituent nitro groups, X is a chlorine or bromine atom, Y is a chlorine, bromine or hydrogen atom, or a hydrocarbon group of from 1 to 8 carbon atoms, and Z is a hydrogen atom or a group of one of the following formulae, wherein R and R' represent a hydrocarbon group of 1 to 8 carbon atoms and X' is a chlorine or bromine atom: ##STR8##
Claim 10
Dependent Claim
157 words
A process for copolymerization to form copolymers containing from 25-85 Wt.% of ethylene units, from 15-75 Wt.% of units of at least one other 1-alkene, and up to 20% of units of aliphatic or alicyclic polyunsaturated monomer of from 3 to 20 carbon atoms and having at least two carbon-carbon double bands wherein the catalyst system employed contains (I) vanadium oxytrichloride, (II) ethyl aluminum sesquihalide, in the presence of a halogen compound of the general formula: ##STR7## wherein A is a phenyl or benzoyl group having from one to two substituent nitro groups, X is a chlorine or bromine atom, Y is a chlorine, bromine or hydrogen atom, or a hydrocarbon group of from 1 to 8 carbon atoms, and Z is a hydrogen atom or a group of one of the following formulae, wherein R and R' represent a hydrocarbon group of 1 to 8 carbon atoms and X' is a chlorine or bromine atom: ##STR8##
Claim 11
Dependent Claim
14 words
The process of claim 8 wherein said molar ratio is between 1:1 and 50:1.
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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) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |