Patent US2588435A successfully refreshed from Google Patents.
US2588435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of treating fatty material
Assignee: Lever Brothers Co
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Filing: 1947-08-07
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Granted: 1952-03-11
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Expires: 1967-08-07
Abstract
No abstract record available.
Inventors
- 👤 Christiaan Van Loon
- 👤 Smit Eltje
- 👤 Willem Van Rijn Van Alkemade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:15
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/02; C11C3/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
THE METHOD WHICH COMPRISES REACTING FATTY GLYCERIDE STOCKS CONTAINING FREE FATTY ACIDS WITH A HIGH BOILING ALCOHOL IN THE PRESENCE OF AN ESTERIFICATION CATALYST AND AT A TEMPERATURE ABOVE THE BOILING POINT OF WATER AT A REACTION PRESSURE, AND SAID ALCOHOL HAVING A BOILING POINT ABOVE SAID REACTION TEMPERATURE WHEREBY WATER IS REMOVED DURING THE REACTION WITHOUT TOO GREAT A PART OF THE HIGH BOILING ALCOHOL EVAPORATING AND SAID FREE FATTY ACIDS IN THE STOCK ARE SUBSTANTIALLY COMPLETELY ESTERIFIED, AND THEREAFTER SUBJECTING THE REACTION MIXTURE TO ALCOHOLYSIS BY REACTING WITH A LOW MOLECULAR WEIGHT MONOHYDRIC ALCOHOL TO FORM LOW MOLECULAR WEIGHT MONOHYDRIC ALCOHOL ESTERS OF FATTY ACIDS.
Claim 2
Independent Claim
107 words
THE METHOD WHICH COMPRISES REACTING FATTY GLYCERIDE STOCKS CONTAINING FREE FATTY ACIDS WITH A HIGH BOILING ALCOHOL IN THE PRESENCE OF AN ESTERIFICATION CATALYST AND AT A TEMPERATURE ABOVE THE BOILING POINT OF WATER AT A REACTION PRESSURE, AND SAID ALCOHOL HAVING A BOILING POINT ABOVE SAID REACTION TEMPERATURE WHEREBY WATER IS REMOVED DURING THE REACTION WITHOUT TOO GREAT A PART OF THE HIGH BOILING ALCOHOL EVAPORATING AND SAID FREE FATTY ACIDS IN THE STOCK ARE SUBSTANTIALLY COMPLETELY ESTERIFIED, AND THEREAFTER SUBJECTING THE REACTION MIXTURE TO ALCOHOLYSIS BY REACTING WITH A LOW MOLECULAR WEIGHT MONOHYDRIC ALCOHOL TO FORM LOW MOLECULAR WEIGHT MONOHYDRIC ALCOHOL ESTERS OF FATTY ACIDS.
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) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |