Patent US3277061A successfully refreshed from Google Patents.
US3277061A
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Carbonylation of amines and substituted ureas derived therefrom
Assignee: Union Oil Company of California
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Filing: 1963-07-01
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Granted: 1966-10-04
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Donald M Fenton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:57
CPC Classifications
C; C07; C07C; C07C273/00; C07C273/18; C07C273/1809
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE CARBONYLATION OF AN AMINE HAVING FROM 1 TO ABOUT 15 CARBONS AND SELECTED FROM THE CLASS CONSISTING OF SATURATED ALIPHATIC AND MONO- AND BICYCLIC AROMATIC PRIMARY AND SECONDARY HYDROCARBON AMINES AND DIAMINES AND MONO-HETROCYCLID HYDROCARBON AMINES AND DIAMINES TO FORM A SUBSTITUTED UREA THAT COMPRISES CONTACTING SAID AMINE WITH CARBON MONOXIDE IN THE PRESENCE OF A MERCURIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF MERCURIC CARBOXYLATES OF LOW MOLECULAR WEIGHT CARBOXYLIC ACIDS, SULFATE, NITRATE AND MERCURIC OXIDE AT A TEMPERATURE FROM ABOUT 100* TO ABOUT 300*C. AND A PRESSURE FROM ABOUT 10 TO ABOUT 1000 P.S.I.G., TO FORM SAID SUBSTANTIAL UREA AND MERCURY.
Claim 2
Dependent Claim
104 words
THE CARBONYLATION OF AN AMINE HAVING FROM 1 TO ABOUT 15 CARBONS AND SELECTED FROM THE CLASS CONSISTING OF SATURATED ALIPHATIC AND MONO- AND BICYCLIC AROMATIC PRIMARY AND SECONDARY HYDROCARBON AMINES AND DIAMINES AND MONO-HETROCYCLID HYDROCARBON AMINES AND DIAMINES TO FORM A SUBSTITUTED UREA THAT COMPRISES CONTACTING SAID AMINE WITH CARBON MONOXIDE IN THE PRESENCE OF A MERCURIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF MERCURIC CARBOXYLATES OF LOW MOLECULAR WEIGHT CARBOXYLIC ACIDS, SULFATE, NITRATE AND MERCURIC OXIDE AT A TEMPERATURE FROM ABOUT 100* TO ABOUT 300*C. AND A PRESSURE FROM ABOUT 10 TO ABOUT 1000 P.S.I.G., TO FORM SAID SUBSTANTIAL UREA AND MERCURY.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |