US2947784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of n, n-dibutyl aniline
Assignee: Eastman Kodak Co
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Filing: 1957-07-31
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Granted: 1960-08-02
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Expires: 1977-07-31
Abstract
No abstract record available.
Inventors
- 👤 James C Martin
- 👤 Robert H Hasck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:33
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/24; C07C209/26; C07C209/30; C07C209/32; C07C209/36; C07C211/00; C07C211/43; C07C211/44; C07C211/45; C07C211/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN THE PREPARTION OF N,N-DI-N-BUTYLANILINE BY HYDROGENATING N-BUTYRALDEHYDE AND ANILINE IN A REACTION ZONE IN THE PRESENCE OF PALLADIUM AND ACETIC ACID AT A PRESSURE OF 500-4,000 P.S.I. AND AT A TEMPERATURE OF 10*-50*C., THE IMPROVEMENT WHICH COMPRISES INTRODUCING THE N-BUTYRALDEHYDE INTO SAID REACTION ZONE DURING THE SAID HYDROGENATION AT A CONTROLLED RATE SUBSTANTIALLY EQUAL TO THE RATE OF REACTION OF THE N-BUTYRALDEHYDE WITH THE ANILINE IN SAID REACTION ZONE.
Claim 2
Dependent Claim
70 words
IN THE PREPARTION OF N,N-DI-N-BUTYLANILINE BY HYDROGENATING N-BUTYRALDEHYDE AND ANILINE IN A REACTION ZONE IN THE PRESENCE OF PALLADIUM AND ACETIC ACID AT A PRESSURE OF 500-4,000 P.S.I. AND AT A TEMPERATURE OF 10*-50*C., THE IMPROVEMENT WHICH COMPRISES INTRODUCING THE N-BUTYRALDEHYDE INTO SAID REACTION ZONE DURING THE SAID HYDROGENATION AT A CONTROLLED RATE SUBSTANTIALLY EQUAL TO THE RATE OF REACTION OF THE N-BUTYRALDEHYDE WITH THE ANILINE IN SAID REACTION ZONE.
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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |