US2863888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of fatty acid hydroxy amides
Assignee: Colgate Palmolive Co
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Filing: 1954-09-28
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Granted: 1958-12-09
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Expires: 1974-09-28
Abstract
No abstract record available.
Inventors
- 👤 Schurman Jack Vair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:07
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/16; Y; Y10; Y10S; Y10S159/00; Y10S159/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A CONTINUOUS PROCESS FOR THE PREPARATION OF FATTY ACID HYDROXY AMIDES OF LOW ESTER-AMIDE CONTENT WHICH COMPRISES MIXING LIQUID FATTY ESTER OF AN ALCOHOL CONTAINING UP TO ABOUT 5 CARBON ATOMS WITH LIQUID HYDROXY-ALKYL AMINE, REACTING SAID ESTER AND AMINE IN THE PRESENCE OF FROM 0.05% TO 1% BY WEIGHT BASED ON ALKALI METAL A CATALYST SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS, ALKALI METAL ALKOXIDES, AND ALKALI METAL AMIDES AT TEMPERATURES WITHIN THE RANGE OF FROM ABOUT 70* C. TO 175*C., AND IMMEDIATELY COOLING THE REACTION PRODUCT TO A TEMPERATURE BELOW ABOUT 55*C., SAID COOLED PRODUCT CONTAINING AT LEAST 0.05% BY WEIGHT FREE CATALYST CALCULATED AS ALKALI METAL.
Claim 2
Dependent Claim
110 words
A CONTINUOUS PROCESS FOR THE PREPARATION OF FATTY ACID HYDROXY AMIDES OF LOW ESTER-AMIDE CONTENT WHICH COMPRISES MIXING LIQUID FATTY ESTER OF AN ALCOHOL CONTAINING UP TO ABOUT 5 CARBON ATOMS WITH LIQUID HYDROXY-ALKYL AMINE, REACTING SAID ESTER AND AMINE IN THE PRESENCE OF FROM 0.05% TO 1% BY WEIGHT BASED ON ALKALI METAL A CATALYST SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS, ALKALI METAL ALKOXIDES, AND ALKALI METAL AMIDES AT TEMPERATURES WITHIN THE RANGE OF FROM ABOUT 70* C. TO 175*C., AND IMMEDIATELY COOLING THE REACTION PRODUCT TO A TEMPERATURE BELOW ABOUT 55*C., SAID COOLED PRODUCT CONTAINING AT LEAST 0.05% BY WEIGHT FREE CATALYST CALCULATED AS ALKALI METAL.
References Cited (Backward Citations)
US2464094A
Cited
US2429445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |