US3152185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing tertiary amines
Assignee: General Mills Inc
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Filing: 1959-02-27
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Granted: 1964-10-06
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Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Zvejnieks Andrejs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:56
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/44; C07C209/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
THE METHOD OF PREPARING ALIPHATIC TERTIARY AMINES, WHICH CONTAIN FROM 6-26 CARBON ATOMS IN EACH ALIPHATIC GROUP, WHICH COMPRISES REACTING IN THE LIQUID PHASE A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC NITRILES, MIXTURES OF ALIPHATIC ALCOHOLS AND AMMONIA, MIXTURES OF ALIPHATIC NITRILES AND AN ALIPHATIC ALCOHOLS AND MIXTURES OF ALIPHATIC SECONDARY AMINES AND ALIPHATIC ALCOHOLS, WHICH ALIPHATIC COMPOUNDS CONTAIN 6-26 CARBON ATOMS IN EACH ALIPHATIC GROUP AND HAVE A VAPOR PRESSURE LESS THAN WATER IN THE PRESENCE OF HYDROGEN AND A HYDROGENATION CATALYST AT A TEMPERATURE OF 160-280*C., AND A PRESSURE OF 100-200 POUNDS PER SQUARE INCH WHILE CIRCULTING HYDROGEN THROUGH THE REACTION MIXTURE, REMOVING VOLATILE PRODUCTS FORMED DURING THE REACTION FROM THE CIRCULATING HYDROGEN, RETURNING THE HYDROGEN TO THE REACTION MIXTURE,AND CONTINUING THE REACTION UNTIL AT LEAST ABOUT 85% OF TERTIARY AMINES ARE OBTAINED.
Claim 2
Independent Claim
137 words
THE METHOD OF PREPARING ALIPHATIC TERTIARY AMINES, WHICH CONTAIN FROM 6-26 CARBON ATOMS IN EACH ALIPHATIC GROUP, WHICH COMPRISES REACTING IN THE LIQUID PHASE A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC NITRILES, MIXTURES OF ALIPHATIC ALCOHOLS AND AMMONIA, MIXTURES OF ALIPHATIC NITRILES AND AN ALIPHATIC ALCOHOLS AND MIXTURES OF ALIPHATIC SECONDARY AMINES AND ALIPHATIC ALCOHOLS, WHICH ALIPHATIC COMPOUNDS CONTAIN 6-26 CARBON ATOMS IN EACH ALIPHATIC GROUP AND HAVE A VAPOR PRESSURE LESS THAN WATER IN THE PRESENCE OF HYDROGEN AND A HYDROGENATION CATALYST AT A TEMPERATURE OF 160-280*C., AND A PRESSURE OF 100-200 POUNDS PER SQUARE INCH WHILE CIRCULTING HYDROGEN THROUGH THE REACTION MIXTURE, REMOVING VOLATILE PRODUCTS FORMED DURING THE REACTION FROM THE CIRCULATING HYDROGEN, RETURNING THE HYDROGEN TO THE REACTION MIXTURE,AND CONTINUING THE REACTION UNTIL AT LEAST ABOUT 85% OF TERTIARY AMINES ARE OBTAINED.
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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |