US2967884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of acrylic acid esters
Assignee: Union Carbide Corp
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Filing: 1958-04-01
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Granted: 1961-01-10
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Expires: 1978-04-01
Abstract
No abstract record available.
Inventors
- 👤 Jesse T Dunn
- 👤 William R Proops
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:35
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07C; C07C67/00; C07C67/36; C07C67/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN THE MANUFACTURE OF AN ACRYLIC ACID ESTER BY THE INTERACTION OF ACETYLENE WITH CARBON MONOXIDE AND AN ALCOHOL AT ELEVATED TEMPERATURE AND UNDER INCREASED PRESSURE, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION IN THE PRESENCE OF A CATALYST COMPLEX COMBINATION OF A NICKEL HALIDE AND AN ORGANIC PHOSPHORUS SULFUR COMPOUND CONTAINING A PENTAVALENT PHOSPHORUS ATOM HAVING A THIONO RADICAL ATTACHED THERETO AS REPRESENTED BY THE GENERAL FORMULA:
Claim 2
Dependent Claim
69 words
IN THE MANUFACTURE OF AN ACRYLIC ACID ESTER BY THE INTERACTION OF ACETYLENE WITH CARBON MONOXIDE AND AN ALCOHOL AT ELEVATED TEMPERATURE AND UNDER INCREASED PRESSURE, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION IN THE PRESENCE OF A CATALYST COMPLEX COMBINATION OF A NICKEL HALIDE AND AN ORGANIC PHOSPHORUS SULFUR COMPOUND CONTAINING A PENTAVALENT PHOSPHORUS ATOM HAVING A THIONO RADICAL ATTACHED THERETO AS REPRESENTED BY THE GENERAL FORMULA:
References Cited (Backward Citations)
DE805641C
Cited
US2806040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |