US2694732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making beta-aliphaticoxypropionaldehyde
Assignee: Union Carbide Corp
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Filing: 1950-07-06
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Granted: 1954-11-16
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Expires: 1970-07-06
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
2026-11-02 21:10
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/02; C07C47/198; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/70; C07C45/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A PROCESS FOR THE PRODUCTION OF A BETA-ALIPHATIC OXYPROPIONALDEHYDE WHEREIN ACROLEIN AND AN ALIPHATIC ALCOHOL ARE CAUSED TO REACT BY HEATING IN THE LIQUID PHASE, THE IMPROVEMENT, WHEREIN THE BETA-ALIPHATICOXYPROPIONALDEHYDE IS PRODUCED WITHOUT RESINIFICATION AND TO THE VIRTUAL EXCLUSION OF ACETALIZATION AND ALDOL CONDENSATION WHICH COMPRISES CATALYZING THE REACTION BY THE ADDITION TO THE REACTION MIXTURE OF A SMALL AMOUNT OF ONE OF THE GROUP CONSISTING OF (1) AN AMPHOTERIC AMINE COMPOUND CONTAINING IN THE MOLECULE BOTH A BASIC AMINE GROUP AND AN ACIDIC HYDROGEN ATOM LINKED TO A CARBON ATOM THROUGH AN OXYGEN ATOM AND (2) AN ALKALINE REACTING AMINE, AND CONTROLLING AND MAINTAINING THE HYDROGEN ION CONCENTRATION OF THE REACTION MIXTURE OF ACROLEIN AND THE ALKANOL AT A PH OF 5.9 TO 7.5 BY THE ADDITION OF A CARBOXYLIC ACID IN SUFFICIENT AMOUNT TO MAINTAIN THE HYDROGEN ION CONCENTRATION AT THE SPECIFIED VALUE.
Claim 2
Dependent Claim
146 words
IN A PROCESS FOR THE PRODUCTION OF A BETA-ALIPHATIC OXYPROPIONALDEHYDE WHEREIN ACROLEIN AND AN ALIPHATIC ALCOHOL ARE CAUSED TO REACT BY HEATING IN THE LIQUID PHASE, THE IMPROVEMENT, WHEREIN THE BETA-ALIPHATICOXYPROPIONALDEHYDE IS PRODUCED WITHOUT RESINIFICATION AND TO THE VIRTUAL EXCLUSION OF ACETALIZATION AND ALDOL CONDENSATION WHICH COMPRISES CATALYZING THE REACTION BY THE ADDITION TO THE REACTION MIXTURE OF A SMALL AMOUNT OF ONE OF THE GROUP CONSISTING OF (1) AN AMPHOTERIC AMINE COMPOUND CONTAINING IN THE MOLECULE BOTH A BASIC AMINE GROUP AND AN ACIDIC HYDROGEN ATOM LINKED TO A CARBON ATOM THROUGH AN OXYGEN ATOM AND (2) AN ALKALINE REACTING AMINE, AND CONTROLLING AND MAINTAINING THE HYDROGEN ION CONCENTRATION OF THE REACTION MIXTURE OF ACROLEIN AND THE ALKANOL AT A PH OF 5.9 TO 7.5 BY THE ADDITION OF A CARBOXYLIC ACID IN SUFFICIENT AMOUNT TO MAINTAIN THE HYDROGEN ION CONCENTRATION AT THE SPECIFIED VALUE.
References Cited (Backward Citations)
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 |