Patent US3939290A successfully refreshed from Google Patents.
US3939290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water in oil emulsion
Assignee: Adeka Corp
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Filing: 1973-07-19
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Granted: 1976-02-17
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Expires: 1993-07-19
Abstract
Abstract This invention relates to an edible emulsion which is stable during storage and carriage and the phases of which are reversed by mechanical working to form an oil-in-water type emulsion, containing a polyhydric alcohol fatty acid ester having a substantial proportion of a polyhydric alcohol fatty acid ester in an amount of about 0.25 - 2.5% by weight of said emulsion and a sucrose fatty acid ester having an HLB value of at least 10 in an amount of about 0.5 - 5% by weight of said emulsion.
Inventors
- 👤 Kimio Terada
- 👤 Satoshi Fujita
- 👤 Shigeru Oinuma
- 👤 Hiroshige Kohno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:30
CPC Classifications
A; A23; A23D; A23D7/00; A23D7/01; A23D7/013; A23D7/015; C; C09; C09K; C09K23/00; C09K23/017; C09K23/018
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
113 words
An edible water-in-oil emulsion, which is stable during storage and carriage and the phase of which can be reversed by mechanical working to form an oil-in-water emulsion, said water-in-oil emulsion comprising about 50 - 95% by weight of a continuous oil phase, about 5 - 50% by weight of a dispersed aqueous phase, a polyhydric alcohol fatty acid ester having a substantial proportion of a polyhydric alcohol unsaturated fatty acid ester in an amount of about 0.25 - 2.5% by weight of said water-in-oil emulsion, and a sucrose fatty acid ester having an HLB value of at least 10 in an amount of about 0.5 - 5% by weight of said water-in-oil emulsion.
Claim 2
Dependent Claim
113 words
An edible water-in-oil emulsion, which is stable during storage and carriage and the phase of which can be reversed by mechanical working to form an oil-in-water emulsion, said water-in-oil emulsion comprising about 50 - 95% by weight of a continuous oil phase, about 5 - 50% by weight of a dispersed aqueous phase, a polyhydric alcohol fatty acid ester having a substantial proportion of a polyhydric alcohol unsaturated fatty acid ester in an amount of about 0.25 - 2.5% by weight of said water-in-oil emulsion, and a sucrose fatty acid ester having an HLB value of at least 10 in an amount of about 0.5 - 5% by weight of said water-in-oil emulsion.
Claim 3
Dependent Claim
22 words
The edible water-in-oil emulsion of claim 1, wherein the particle size of the dispersed aqueous phase is about 2 - 20 microns.
Claim 4
Dependent Claim
28 words
The edible water-in-oil emulsion of claim 1, wherein the sucrose fatty acid ester is composed of at least 50% monoester, together with small amounts of diester and triester.
Claim 5
Dependent Claim
26 words
The edible water-in-oil emulsion of claim 1, wherein the combined fatty acid of the polyhydric alcohol fatty acid ester contains at least 50% unsaturated fatty acid.
Claim 6
Dependent Claim
31 words
The edible water-in-oil emulsion of claim 1, wherein the combined polyhydric alcohol of the polyhydric alcohol fatty acid ester is selected from a group consisting of glycerin, propylene glycol and sorbitan.
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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) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |