US3080424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparation of primary and secondary amines
Assignee: Gulf Research and Development Co
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Filing: 1959-10-09
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Granted: 1963-03-05
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Expires: 1979-10-09
Abstract
No abstract record available.
Inventors
- 👤 Bernard H Gwynn
- 👤 Arthur C Whitaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:10
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS WHICH COMPRISES REACTING ONE MOL OF AN ALUMINUM ALKOXIDE HAVING ALKYL GROUPS HAVING FROM SIX TO SIXTEEN CARBON ATOMS WITH AT LEAST ABOUT ONE MOL OF AMMONIA AT A TEMPERATURE OF ABOUT 200* TO ABOUT 350* C. AND A PRESSURE OF ABOUT 300 TO ABOUT 5000 POUNDS PER SQUARE INCH GUAGE IN THE PRESENCE OF ABOUT ONE-HALF TO ABOUT FOUR TIMES THE VOLUME OF SAID ALUMINUM ALKOXIDE OF A HYDROCARBON SOLVENT FOR ABOUT 45 MINUTES TO ABOUT THREE HOURS TO OBTAIN A PRODUCT COMPRISING PRIMARY AND SECONDARY AMINES, THE ALKYL SUBSTITUENT ON SAID AMINES CORRESPONDING TO THE ALKYL SUBSTITUENT ON SAID ALUMINUM ALKOXIDE.
Claim 2
Dependent Claim
105 words
A PROCESS WHICH COMPRISES REACTING ONE MOL OF AN ALUMINUM ALKOXIDE HAVING ALKYL GROUPS HAVING FROM SIX TO SIXTEEN CARBON ATOMS WITH AT LEAST ABOUT ONE MOL OF AMMONIA AT A TEMPERATURE OF ABOUT 200* TO ABOUT 350* C. AND A PRESSURE OF ABOUT 300 TO ABOUT 5000 POUNDS PER SQUARE INCH GUAGE IN THE PRESENCE OF ABOUT ONE-HALF TO ABOUT FOUR TIMES THE VOLUME OF SAID ALUMINUM ALKOXIDE OF A HYDROCARBON SOLVENT FOR ABOUT 45 MINUTES TO ABOUT THREE HOURS TO OBTAIN A PRODUCT COMPRISING PRIMARY AND SECONDARY AMINES, THE ALKYL SUBSTITUENT ON SAID AMINES CORRESPONDING TO THE ALKYL SUBSTITUENT ON SAID ALUMINUM ALKOXIDE.
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |