US2516627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of allyl acrylate from acrolein
Assignee: Shell Development Co
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Filing: 1948-06-08
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Granted: 1950-07-25
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Expires: 1968-06-08
Abstract
No abstract record available.
Inventors
- 👤 George W Hearne
- 👤 Carl G Schwarzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:45
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A PROCESS FOR THE PREPARATION OF ALLYL ACRYLATE BY THE CONDENSATION OF ACROLEIN IN THE PRESENCE OF ALUMINUM ISOPROPOXIDE, WHEREIN ACROLEIN IS MIXED WITH A SOLUTION OF ALUMINUM ISOPROPOXIDE IN AN AROMATIC HYDROCARBON SOLVENT THEREFORE, THE MIXTURE IS ALLOWED TO STAND, AND ALLYL ACRYLATE IS SUBSEQUENTLY RECOVERED, THE IMPROVEMENT WHICH COMPRISES FURNISHING TO SAID PROCESS AS THE ACROLEIN REACTANT A QUANTITY OF ACROLEIN WHICH, UPON DILUTION OF A 2 CUBIC CENTIMETER TEST PORTION THEREOF AT ABOUT 25*C. WITH 25 TIMES ITS VOLUME OF ISO-OCTANE SATURATED AT ABOUT 25*C. WITH WATER, FORMS A CLEAR SOLUTION; BY MEANS OF WHICH IMPROVEMENTS ALLYL ACRYLATE IS PRODUCED AS PRODUCT OF THE CONDENSATION OF THE ACROLEIN.
Claim 2
Dependent Claim
112 words
IN A PROCESS FOR THE PREPARATION OF ALLYL ACRYLATE BY THE CONDENSATION OF ACROLEIN IN THE PRESENCE OF ALUMINUM ISOPROPOXIDE, WHEREIN ACROLEIN IS MIXED WITH A SOLUTION OF ALUMINUM ISOPROPOXIDE IN AN AROMATIC HYDROCARBON SOLVENT THEREFORE, THE MIXTURE IS ALLOWED TO STAND, AND ALLYL ACRYLATE IS SUBSEQUENTLY RECOVERED, THE IMPROVEMENT WHICH COMPRISES FURNISHING TO SAID PROCESS AS THE ACROLEIN REACTANT A QUANTITY OF ACROLEIN WHICH, UPON DILUTION OF A 2 CUBIC CENTIMETER TEST PORTION THEREOF AT ABOUT 25*C. WITH 25 TIMES ITS VOLUME OF ISO-OCTANE SATURATED AT ABOUT 25*C. WITH WATER, FORMS A CLEAR SOLUTION; BY MEANS OF WHICH IMPROVEMENTS ALLYL ACRYLATE IS PRODUCED AS PRODUCT OF THE CONDENSATION OF THE ACROLEIN.
References Cited (Backward Citations)
GB362458A
Cited
US2250520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |