US2694733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making beta-aliphaticoxy-propionaldehyde
Assignee: Union Carbide Corp
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Filing: 1954-05-26
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Granted: 1954-11-16
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Expires: 1974-05-26
Abstract
No abstract record available.
Inventors
- 👤 Lucian W Mcteer
- 👤 Thomas R Miller
- 👤 Helmut W Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:45
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/70; C07C45/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A PROCESS FOR THE PRODUCTION OF A BETA-ALIPHATICOXYPROPIONALDEHYDE COMPOSED OF CARBON, HYDROGEN AND OXYGEN WHEREIN ACROLEIN AND AN ALIPHATIC ALCOHOL COMPOSED OF CARBON, HYDROGEN AND OXYGEN AND FREE OF REACTIVE GROUPS OTHER THAN HYDROXYL ARE CAUSED TO REACT BY HEATING IN THE LIQUID PHASE, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE REACTION BY THE ADDITION TO THE REACTION MIXTURE OF A SMALL AMOUNT OF AN ALCOHOL AMINE AND CONTROLLING AND MAINTAINING THE HYDROGEN ION CONCENTRATION OF THE REACTION MIXTURE OF ACROLEIN AND ALCOHOL AT A PH OF 5.9 TO 7.5 BY THE ADDITION OF A CARBOXYIC ACID IN SUFFICIENT AMOUNT TO MAINTAIN THE HYDROGEN ION CONCENTRATION AT THE SPECIFIED VALUE.
Claim 2
Dependent Claim
110 words
IN A PROCESS FOR THE PRODUCTION OF A BETA-ALIPHATICOXYPROPIONALDEHYDE COMPOSED OF CARBON, HYDROGEN AND OXYGEN WHEREIN ACROLEIN AND AN ALIPHATIC ALCOHOL COMPOSED OF CARBON, HYDROGEN AND OXYGEN AND FREE OF REACTIVE GROUPS OTHER THAN HYDROXYL ARE CAUSED TO REACT BY HEATING IN THE LIQUID PHASE, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE REACTION BY THE ADDITION TO THE REACTION MIXTURE OF A SMALL AMOUNT OF AN ALCOHOL AMINE AND CONTROLLING AND MAINTAINING THE HYDROGEN ION CONCENTRATION OF THE REACTION MIXTURE OF ACROLEIN AND ALCOHOL AT A PH OF 5.9 TO 7.5 BY THE ADDITION OF A CARBOXYIC ACID IN SUFFICIENT AMOUNT TO MAINTAIN THE HYDROGEN ION CONCENTRATION AT THE SPECIFIED VALUE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |