US2964558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of acrylic esters
Assignee: Dow Chemical Co
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Filing: 1958-10-01
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Granted: 1960-12-13
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Expires: 1978-10-01
Abstract
No abstract record available.
Inventors
- 👤 Joel M F Leathers
- 👤 William P Coker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:13
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; C07C51/14; C07C67/00; C07C67/36; C07C67/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR THE PREPARATION OF AN ACRYLIC ESTER BY THE REACTION OF ACETYLENE WITH CARBON MONOXIDE AND AN ALIPHATIC SATURATED ALCOHOL HAVING FROM 1 TO 12 CARBON ATOMS, WHICH COMPRISES DISSOLVING THE ACETYLENE IN A LIQUID SELECTED FROM THE GROUP CONSISTING OF THE REACTANT ALCOHOL AND A MIXTURE OF THE REACTANT ALCOHOL AND AN INERT ORGANIC ACETYLENE SOLVENT, AND SUBSEQUENTLY REACTING THE DISSOLVED ACETYLENE WITH THE ALCOHOL AND CARBON MONOXIDE AT A TEMPERATURE IN THE RANGE OF 220* TO 270* C. IN THE PRESENCE OF A CATALYST KNOWN TO PROMOTE THE REACTION WITH AN EXCESS OF CARBON MONOXIDE SUFFICIENT TO GIVE A PRESSURE WITHIN 2000 TO 4500 POUNDS PER SQUARE INCH.
Claim 2
Dependent Claim
112 words
A PROCESS FOR THE PREPARATION OF AN ACRYLIC ESTER BY THE REACTION OF ACETYLENE WITH CARBON MONOXIDE AND AN ALIPHATIC SATURATED ALCOHOL HAVING FROM 1 TO 12 CARBON ATOMS, WHICH COMPRISES DISSOLVING THE ACETYLENE IN A LIQUID SELECTED FROM THE GROUP CONSISTING OF THE REACTANT ALCOHOL AND A MIXTURE OF THE REACTANT ALCOHOL AND AN INERT ORGANIC ACETYLENE SOLVENT, AND SUBSEQUENTLY REACTING THE DISSOLVED ACETYLENE WITH THE ALCOHOL AND CARBON MONOXIDE AT A TEMPERATURE IN THE RANGE OF 220* TO 270* C. IN THE PRESENCE OF A CATALYST KNOWN TO PROMOTE THE REACTION WITH AN EXCESS OF CARBON MONOXIDE SUFFICIENT TO GIVE A PRESSURE WITHIN 2000 TO 4500 POUNDS PER SQUARE INCH.
References Cited (Backward Citations)
US2738364A
Cited
US2851486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |