Patent US4831114A successfully refreshed from Google Patents.
US4831114A
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Polymerization of carbon monoxide and olefin with acid catalyst
Assignee: Shell USA Inc
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Filing: 1987-07-17
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Granted: 1989-05-16
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Expires: 2007-07-17
Abstract
Abstract Linear alternating copolymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are produced in the presence of novel catalysts formed from a Group VIII metal compound, an anion of a non-hydrohalogenic acid having a pKa above about 2 but below about 4, and certain bidentate ligands of phosphorus.
Inventors
- 👤 Eit Drent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:19
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1895; B01J31/24; B01J31/2404; B01J31/2409; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/824; B01J31/22; B01J31/2204; B01J31/2208
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
In the process of producing linear alternating polymers of carbon monoxide and at least one olefinically unsaturated hydrocarbon under polymerization conditions in the presence of a catalyst formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa less than about 6 and bidentate hydrocarbyl phosphorus ligands, the improvement wherein the acid is selected from a group consisting of phosphoric acid, arsenic acid, nitrous acid, selenious acid, tartaric acid, 2,5-dihydroxybenzoic acid, bromacetic acid, 2-chlorobenzoic acid, α-chlorobutyric acid, cyanoacetic acid, (2-cyanophenoxy) acetic acid, chloroacetic acid, glycolic acid, and 2-furan-carboxylic acid, and wherein polymerization temperature is below about 115° C.
Claim 2
Dependent Claim
101 words
In the process of producing linear alternating polymers of carbon monoxide and at least one olefinically unsaturated hydrocarbon under polymerization conditions in the presence of a catalyst formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa less than about 6 and bidentate hydrocarbyl phosphorus ligands, the improvement wherein the acid is selected from a group consisting of phosphoric acid, arsenic acid, nitrous acid, selenious acid, tartaric acid, 2,5-dihydroxybenzoic acid, bromacetic acid, 2-chlorobenzoic acid, α-chlorobutyric acid, cyanoacetic acid, (2-cyanophenoxy) acetic acid, chloroacetic acid, glycolic acid, and 2-furan-carboxylic acid, and wherein polymerization temperature is below about 115° C.
Claim 3
Dependent Claim
23 words
The process of claim 1 wherein the anion is an anion of an acid selected from phosphoric acid, tartaric acid or 2,5-dihydroxybenzoic acid.
Claim 4
Dependent Claim
18 words
The process of claim 2 wherein the polymerization temperature is from about 20° C. to about 110° C.
Claim 5
Dependent Claim
90 words
In the process of producing copolymers of carbon monoxide and ethylene under polymerization conditions in the presence of a catalyst formed from palladium acetate, an anion of an oxygen-containing acid having a pKa less than about 6 and 1,3-bis(diphenylphosphino)propane, the improvement wherein the acid is selected from a group consisting of phosphoric acid, arsenic acid, nitrous acid, selenious acid, tartaric acid, 2,5-dihydroxybenzoic acid, bromacetic acid, 2-chlorobenzoic acid, α-chlorobutyric acid, cyanoacetic acid, (2-cyanophenoxy) acetic acid, chloracetic acid, glycolic acid, and 2-furan-carboxylic acid, and wherein polymerization temperature is below about 115° C.
Claim 6
Dependent Claim
90 words
In the process of producing copolymers of carbon monoxide and ethylene under polymerization conditions in the presence of a catalyst formed from palladium acetate, an anion of an oxygen-containing acid having a pKa less than about 6 and 1,3-bis(diphenylphosphino)propane, the improvement wherein the acid is selected from a group consisting of phosphoric acid, arsenic acid, nitrous acid, selenious acid, tartaric acid, 2,5-dihydroxybenzoic acid, bromacetic acid, 2-chlorobenzoic acid, α-chlorobutyric acid, cyanoacetic acid, (2-cyanophenoxy) acetic acid, chloracetic acid, glycolic acid, and 2-furan-carboxylic acid, and wherein polymerization temperature is below about 115° C.
Claim 7
Dependent Claim
23 words
The process of claim 4 wherein the anion is an anion of an acid selected from phosphoric acid, tartaric acid or 2,5-dihydroxybenzoic acid.
Claim 8
Dependent Claim
18 words
The process of claim 4 wherein the polymerization temperature is from about 30° C. to about 100° C.
Claim 9
Dependent Claim
11 words
The process of claim 6 wherein the acid is phosphoric acid.
Claim 10
Dependent Claim
11 words
The process of claim 6 wherein the acid is tartaric acid.
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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) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |