Patent US2582867A successfully refreshed from Google Patents.
US2582867A
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Alkylidene-alkoxyarylalkylamines and preparation thereof
Assignee: ExxonMobil Oil Corp
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Filing: 1948-05-27
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Granted: 1952-01-15
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Expires: 1968-05-27
Abstract
No abstract record available.
Inventors
- 👤 Howard D Hartough
- 👤 Jr Joseph J Dickert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:06
CPC Classifications
C; C07; C07D; C07D413/00; C07D413/02; C07D413/06; C07C; C07C209/00; C07C209/24; C07C209/68; C07C213/00; C07C213/02; C07C213/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
A METHOD OF PREPARING AN N-ALKYLIDENE(ALKOXYARYL) ALKYLAMINE WHICH COMPRISES MIXING AN AROMATIC HYDROCARBON HAVING ONLY AN ALKOXY SUBSTITUENT WITH AT LEAST A MOLAR EQUIVALENT OF AN ALKYLALDEHYDE, AT LEAST ONE-THIRD OF A MOLAR EQUIVALENT OF AMMONIUM HALIDE AND A SOLVENT AMOUNT OF ACETIC ACID TO FORM A REACTION MIXTURE, MAINTAINING SAID REACTION MIXTURE AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 50* TO ABOUT 100* C., AND RECOVERING N-ALKYLIDENE-(ALKOXYARY) ALKYLAMINE.
Claim 2
Independent Claim
70 words
A METHOD OF PREPARING AN N-ALKYLIDENE(ALKOXYARYL) ALKYLAMINE WHICH COMPRISES MIXING AN AROMATIC HYDROCARBON HAVING ONLY AN ALKOXY SUBSTITUENT WITH AT LEAST A MOLAR EQUIVALENT OF AN ALKYLALDEHYDE, AT LEAST ONE-THIRD OF A MOLAR EQUIVALENT OF AMMONIUM HALIDE AND A SOLVENT AMOUNT OF ACETIC ACID TO FORM A REACTION MIXTURE, MAINTAINING SAID REACTION MIXTURE AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 50* TO ABOUT 100* C., AND RECOVERING N-ALKYLIDENE-(ALKOXYARY) ALKYLAMINE.
Claim 3
Dependent Claim
47 words
A NEW COMPOSITION OF MATTER CONTAINING 72.48 PER CENT CARBON, 7.38 PER CENT HYDROGEN, AND 9.39 PER CENT NITROGEN, HAVING A MOLECULA WEIGHT OF 447 AND HAVING A MELTING POINT AFTER 4 RECRYSTALLIZATIONS FROM DENATURED ALCOHOL OF 108* TO 110* C., SAID MATERIAL CONFORMING TO THE FORMULA
Claim 4
Dependent Claim
47 words
A NEW COMPOSITION OF MATTER CONTAINING 72.48 PER CENT CARBON, 7.38 PER CENT HYDROGEN, AND 9.39 PER CENT NITROGEN, HAVING A MOLECULA WEIGHT OF 447 AND HAVING A MELTING POINT AFTER 4 RECRYSTALLIZATIONS FROM DENATURED ALCOHOL OF 108* TO 110* C., SAID MATERIAL CONFORMING TO THE FORMULA
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) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |