US2919197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing oil-in-water emulsions
Assignee: Lever Brothers Co
•
Filing: 1955-02-23
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Granted: 1959-12-29
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Expires: 1975-02-23
Abstract
No abstract record available.
Inventors
- 👤 Duin Hendrik Jan
- 👤 Schaap Jacob Arie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:29
CPC Classifications
A; A23; A23D; A23D7/00; A23D7/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A METHOD OF PREPARING A HIGHLY PACKED HEAT STABLE OIL-IN-WATER EMULSION CONTAINING AT LEAST 74% BY VOLUME OF OIL WHICH COMPRISES ADDING A FATY OIL TO AN AQUEOUS PHASE IN THE PRESENCE OF A WATER-SOLUBLE EMULSIFYING AGENT AT AN ELEVATED TEMPERATURE AT WHICH THE OIL IS LIQUID AND IN ANY CASE NO GREATER THAN 100* C. WITH INTENSIVE STIRRING, THE FATTY OIL COMPRISING AT LEAST 74% BY VOLUME OF THE MIXTURE OF OIL AND AQUEOUS PHASE, THE AQUEOUS PHASE HAVING A PH WITHIN THE RANGE 5 TO 11 AND THE WATER-SOLUBLE EMULSIFYING AGENT CONTAINING A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NON-IONIC CAPILLARY ACTIVE SUBSTANCE HAVING PRONOUNCED HYDROPHILIC PROPERTIES AND BEING A CONDENSATION PRODUCT OF A HIGHER FATTY ACID AND A LOWER AMINO CARBOXYLIC ACID OF THE GENERAL FORMULA
Claim 2
Independent Claim
132 words
A METHOD OF PREPARING A HIGHLY PACKED HEAT STABLE OIL-IN-WATER EMULSION CONTAINING AT LEAST 74% BY VOLUME OF OIL WHICH COMPRISES ADDING A FATY OIL TO AN AQUEOUS PHASE IN THE PRESENCE OF A WATER-SOLUBLE EMULSIFYING AGENT AT AN ELEVATED TEMPERATURE AT WHICH THE OIL IS LIQUID AND IN ANY CASE NO GREATER THAN 100* C. WITH INTENSIVE STIRRING, THE FATTY OIL COMPRISING AT LEAST 74% BY VOLUME OF THE MIXTURE OF OIL AND AQUEOUS PHASE, THE AQUEOUS PHASE HAVING A PH WITHIN THE RANGE 5 TO 11 AND THE WATER-SOLUBLE EMULSIFYING AGENT CONTAINING A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NON-IONIC CAPILLARY ACTIVE SUBSTANCE HAVING PRONOUNCED HYDROPHILIC PROPERTIES AND BEING A CONDENSATION PRODUCT OF A HIGHER FATTY ACID AND A LOWER AMINO CARBOXYLIC ACID OF THE GENERAL FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |