US5420236A
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Process for the preparation of copolymers
Assignee: Shell USA Inc
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Filing: 1994-03-11
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Granted: 1995-05-30
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Expires: 2014-03-11
Abstract
Abstract A process for the preparation of copolymers by reacting carbon monoxide and one or more ethylenically unsaturated compounds under polymerizable conditions in the substantial absence of a liquid non-polymerizable diluent and in the presence of a catalyst system consisting essentially of: (a) a source of cations of one or more noble metals of Group VIII of the Periodic Table; (b) a source of anions of acids having a pKa of less than 4; (c) a source of cations of one of more metals selected from the group consisting of nickel, cobalt, manganese, lead, zinc, magnesium, iron (II), copper (II), lanthanum and neodymium and (d) a source of bidentate ligands.
Inventors
- 👤 Johannes J. Keijsper
- 👤 Arleen M. Bradford
- 👤 Andre Buys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:44
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
107 words
A process for the preparation of copolymers by reacting carbon monoxide and one or more ethylenically unsaturated compounds under polymerization conditions in the substantial absence of a liquid non-polymerizable diluent and in the presence of a catalyst system consisting essentially of: (a) a source of cations of one or more noble metals of Group VIII of the Periodic Table; (b) a source of anions of acids having a pKa of less than 4; (c) a source of cations of one or more metals selected from the group consisting of manganese, lead, zinc, magnesium, iron (II), copper (II), lanthanum, and neodymium; and (d) a source of bidentate ligands.
Claim 2
Dependent Claim
107 words
A process for the preparation of copolymers by reacting carbon monoxide and one or more ethylenically unsaturated compounds under polymerization conditions in the substantial absence of a liquid non-polymerizable diluent and in the presence of a catalyst system consisting essentially of: (a) a source of cations of one or more noble metals of Group VIII of the Periodic Table; (b) a source of anions of acids having a pKa of less than 4; (c) a source of cations of one or more metals selected from the group consisting of manganese, lead, zinc, magnesium, iron (II), copper (II), lanthanum, and neodymium; and (d) a source of bidentate ligands.
Claim 3
Dependent Claim
27 words
A process as in claim 1 wherein component (a) of said catalyst system is a salt of a noble metal of Group VIII and a carboxylic acid.
Claim 4
Dependent Claim
17 words
A process as in claim 2 wherein component (a) of said catalyst system is palladium (11) acetate.
Claim 5
Dependent Claim
27 words
A process as in claim 1 wherein component (b) of said catalyst system is an anion of a non-hydrohalogenic acid having a pka of less than 2.
Claim 6
Dependent Claim
31 words
A process as in claim 4 wherein said anion is a member of the group consisting of HCL0 4 , CF 3 SO 3 H, HBF 4 , or naphthalenesulfonic acid.
Claim 7
Dependent Claim
36 words
A process as in claim 1 wherein component (c) of said catalyst system is a cation of one or more metal selected from the group consisting of cobalt, manganese, nickel, zinc, iron (11), magnesium or lead.
Claim 8
Dependent Claim
52 words
A process as in claim 1 wherein in said catalyst system, component (b) is an anion of an acid salt having a pka of less than 4, and component (c) is a cation of a metal selected from the group consisting of nickel, cobalt, manganese, iron (11), copper (11), lanthanum or neodymium.
Claim 9
Dependent Claim
20 words
A process as in claim 7 wherein said components (b) and (c) are based on cobalt, manganese, or nickel perchlorate.
Claim 10
Dependent Claim
29 words
A process as in claim 1 wherein in said catalyst system the molar amount of component (c) to component (a) is within the range of 1-50 per gram atom.
Claim 11
Dependent Claim
40 words
A process as in claim 1 wherein component (d) of said catalyst system is based on a bidentate ligand comprising two phosphorus, arsenic, antimony, nitrogen or sulfur atoms capable of forming a complex with the noble metal(s) of Group VIII.
Claim 12
Dependent Claim
75 words
A process as in claim 10 wherein said bidentate ligand has the general formula R.sup.1 R.sup.2 M.sup.1 RM.sup.2 R.sup.3 R.sup.4 (I) wherein each of M 1 and M 2 independently represents a phosphorus, arsenic, antimony or nitrogen atom, each of R 1 , R 2 , R 3 , and R 4 independently represents a substituted or non-substituted hydrocarbyl group and R represents a bivalent bridging group containing 1 to 5 atoms in the bridge.
Claim 13
Dependent Claim
59 words
A process as in claim 11, wherein said bidentate ligand of formula (I) M 1 and M 2 represent phosphorus atoms, each of R 1 , R 2 , R 3 and R 4 independently represents a non-substituted or polar substituted aryl group and R represents a bivalent bridging group containing 2 to 4 carbon atoms in the bridge.
Claim 14
Dependent Claim
33 words
A process as in claim 11 wherein said bidentate ligand of formula (I) each of R 1 , R 2 , R 3 represents an ortho-alkoxyphenyl group and R represents a trimethylene group.
Claim 15
Dependent Claim
33 words
A process as in claim 1 wherein in said catalyst system, the molar amount of component (d) to component (a) is within the range of from 0.5 to 2 moles per gram atom.
Claim 16
Dependent Claim
18 words
A process as in claim 1 wherein said catalyst system further comprises a promoter comprising an organic oxidant.
Claim 17
Dependent Claim
21 words
A process as in claim 15 wherein said promoter is a member of the group consisting of benzoquinone, naphthoquinone, or anthraquinone.
Claim 18
Dependent Claim
15 words
A process as in claim 15 wherein said catalyst system is supported on a carrier.
Claim 19
Dependent Claim
21 words
A process as in claim 1 wherein said reaction temperature is from 20°-200° C., at a pressure of from 2-200 bar.
Claim 20
Dependent Claim
9 words
A copolymer produced by the process of claim 1.
Claim 21
Dependent Claim
11 words
An article of manufacture produced from the copolymer of claim 19.
Claim 22
Dependent Claim
123 words
A process for the preparation of copolymers by reacting carbon monoxide and one or more ethylenically unsaturated compounds under polymerization conditions in the substantial absence of a liquid non-polymerizable diluent and in the presence of a catalyst system comprising: (a) a source of cations of one or more noble metals of Group VIII of the Periodic Table; (b) a source of anions of acids having a pKa of less than 4; (c) a source of cations of one or more metals selected from the group consisting of nickel, cobalt, manganese, lead, zinc, magnesium, iron (II), copper (II), lanthanum, and neodymium; and (d) a source of bidentate ligands; wherein said anions of (b) and said cations of (c) are obtained from a single salt.
Claim 23
Dependent Claim
123 words
A process for the preparation of copolymers by reacting carbon monoxide and one or more ethylenically unsaturated compounds under polymerization conditions in the substantial absence of a liquid non-polymerizable diluent and in the presence of a catalyst system comprising: (a) a source of cations of one or more noble metals of Group VIII of the Periodic Table; (b) a source of anions of acids having a pKa of less than 4; (c) a source of cations of one or more metals selected from the group consisting of nickel, cobalt, manganese, lead, zinc, magnesium, iron (II), copper (II), lanthanum, and neodymium; and (d) a source of bidentate ligands; wherein said anions of (b) and said cations of (c) are obtained from a single salt.
Claim 24
Dependent Claim
36 words
The process of claim 21 wherein said source of said anions of (b) and said cations of (c) is selected from the group consisting of nickel trifluoromethanesulfonate, nickel perchlorate, cobalt perchlorate, manganese perchlorate, and zinc trifluouromethanesulfonate.
References Cited (Backward Citations)
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| 7.5 Years (Year 8) | 2002-05-29 | 2002-11-28 | 2003-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-29 | 2006-11-28 | 2007-05-30 | $7700.00 | Window Closed / Lapsed |