Patent US5021547A successfully refreshed from Google Patents.
US5021547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous polymerization of Co/olefin in plurality of reactors in series
Assignee: Shell USA Inc
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Filing: 1990-05-24
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Granted: 1991-06-04
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Expires: 2010-05-24
Abstract
Abstract An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon by contacting the carbon monoxide and hydrocarbon under polymerization conditions in the presence of a catalyst composition formed from a palladium compound, a strong non-hydrohalogenic acid and a bidentate ligand of phosphorus, nitrogen or sulfur comprises conducting the polymerization in a continuous manner in two or more reactors connected in series.
Inventors
- 👤 Pieter A. Gautier
- 👤 Maarten M. Geuze
- 👤 Barend Mastenbroek
- 👤 Leonardus Petrus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:16
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
79 words
In the process of producing linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon by contacting the carbon monoxide and hydrocarbon under polymerization conditions in the presence of a liquid reaction diluent and a catalyst composition formed from a palladium compound, the anion of a strong non-hydrohalogenic acid and a bidentate ligand of phosphorus, nitrogen or sulfur, the improvement of conducting the contacting in a continuous manner in at least two reactors operating in series.
Claim 2
Dependent Claim
79 words
In the process of producing linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon by contacting the carbon monoxide and hydrocarbon under polymerization conditions in the presence of a liquid reaction diluent and a catalyst composition formed from a palladium compound, the anion of a strong non-hydrohalogenic acid and a bidentate ligand of phosphorus, nitrogen or sulfur, the improvement of conducting the contacting in a continuous manner in at least two reactors operating in series.
Claim 3
Dependent Claim
12 words
The process of claim 1 wherein the contacting is in two reactors.
Claim 4
Dependent Claim
19 words
The process of claim 2 wherein at least 50% of the catalyst composition is introduced to the first reactor.
Claim 5
Dependent Claim
19 words
The process of claim 3 wherein at least 75% of the catalyst composition is introduced to the first reactor.
Claim 6
Dependent Claim
12 words
The process of claim 1 wherein the contacting is in three reactors.
Claim 7
Dependent Claim
19 words
The process of claim 1 wherein at least 75% of the catalyst composition is introduced to the first reactor.
Claim 8
Dependent Claim
77 words
In the process of producing a linear alternating terpolymer of carbon monoxide, ethylene and propylene by contacting the carbon monoxide, ethylene and propylene under polymerization conditions in the presence of a liquid reaction diluent and a catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa below 2 and a bidentate phosphine ligand, the improvement of conducting the contacting in a continuous manner in at least two reactors operating in series.
Claim 9
Dependent Claim
77 words
In the process of producing a linear alternating terpolymer of carbon monoxide, ethylene and propylene by contacting the carbon monoxide, ethylene and propylene under polymerization conditions in the presence of a liquid reaction diluent and a catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa below 2 and a bidentate phosphine ligand, the improvement of conducting the contacting in a continuous manner in at least two reactors operating in series.
Claim 10
Dependent Claim
12 words
The process of claim 7 wherein the contacting is in two reactors.
Claim 11
Dependent Claim
19 words
The process of claim 8 wherein at least 50% of the catalyst composition is introduced to the first reactor.
Claim 12
Dependent Claim
12 words
The process of claim 7 wherein the contacting is in three reactors.
Claim 13
Dependent Claim
19 words
The process of claim 10 wherein at least 75% of the catalyst composition is introduced to the first reactor.
Claim 14
Dependent Claim
75 words
In the process of producing a linear alternating copolymer of carbon monoxide and ethylene by contacting the carbon monoxide and ethylene under polymerization conditions in the presence of a liquid reaction diluent and a catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa below 2 and a bidentate phosphine ligand, the improvement of conducting the contacting in a continuous manner in at least two reactors operating in series.
Claim 15
Dependent Claim
75 words
In the process of producing a linear alternating copolymer of carbon monoxide and ethylene by contacting the carbon monoxide and ethylene under polymerization conditions in the presence of a liquid reaction diluent and a catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa below 2 and a bidentate phosphine ligand, the improvement of conducting the contacting in a continuous manner in at least two reactors operating in series.
Claim 16
Dependent Claim
12 words
The process of claim 12 wherein the contacting is in two reactors.
Claim 17
Dependent Claim
19 words
The process of claim 13 wherein at least 50% of the catalyst composition is in(produced to the first reactor.
Claim 18
Dependent Claim
12 words
The process of claim 12 wherein the contacting is in three reactors.
Claim 19
Dependent Claim
19 words
The process of claim 15 wherein at least 75% of the catalyst composition is introduced to the first reactor.
References Cited (Backward Citations)
US3694412A
Cited
EP0121965A2
Cited
EP0181014A1
Cited
EP0213671A1
Cited
EP0257663B1
Cited
EP0305011A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-03 | 1994-12-03 | 1995-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-03 | 1998-12-03 | 1999-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-03 | 2002-12-03 | 2003-06-04 | $7700.00 | Window Closed / Lapsed |