US3923847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of producing cocoa butter
Assignee: Studiengesellschaft Kohle gGmbH
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Filing: 1973-05-23
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Granted: 1975-12-02
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Expires: 1993-05-23
Abstract
Abstract Process of extracting cocoa butter from sources thereof by use of supercritical gases which are solvents therefor, especially carbon dioxide.
Inventors
- 👤 Wilhelm Roselius
- 👤 Otto Vitzthum
- 👤 Peter Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:10
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10; C11B1/104; B; B01; B01D; B01D11/00; B01D11/02; B01D11/0203; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/54
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
66 words
A METHOD FOR THE PRODUCTION OF COCOA BUTTER FROM COCOA MASS OR FROM ROASTED OOR UNROASTED COCOA NIBS COMPRISNG THE STEP OF CONTACTING SAID COCOA PRODUCT WITH A FOOD-ACCEPTABLE SOLVENT GAS WHICH IS SUPERCRITICAL IN RESPECT OF TEMPERATURE AND PRESSURE FOR EXTRACTION OF SAID COCOA BUTTER BY THE SOLVENT GAS, AND REMOVING THE SOLVENT GAS BEARING THE COCOA BUTTER FROM THE RESIDUE OF SAID COCOA PRODUCT.
Claim 2
Independent Claim
66 words
A METHOD FOR THE PRODUCTION OF COCOA BUTTER FROM COCOA MASS OR FROM ROASTED OOR UNROASTED COCOA NIBS COMPRISNG THE STEP OF CONTACTING SAID COCOA PRODUCT WITH A FOOD-ACCEPTABLE SOLVENT GAS WHICH IS SUPERCRITICAL IN RESPECT OF TEMPERATURE AND PRESSURE FOR EXTRACTION OF SAID COCOA BUTTER BY THE SOLVENT GAS, AND REMOVING THE SOLVENT GAS BEARING THE COCOA BUTTER FROM THE RESIDUE OF SAID COCOA PRODUCT.
Claim 3
Dependent Claim
19 words
A method according to claim 1 including the further step of recovering the cocoa butter from the resulting extract.
Claim 4
Dependent Claim
29 words
A method according to claim 2 wherein said recovery step is effected by lowering the pressure to below the critical pressure while maintaining the temperature above the critical temperature.
Claim 5
Dependent Claim
28 words
A method according to claim 2 wherein said recovery step is effected by lowering the pressure below the critical pressure while maintaining the temperature below the critical temperature.
Claim 6
Dependent Claim
31 words
A method according to claim 1 wherein said gas is selected from the group consisting of prepurified N2O, SF6, CHF3, ethane, ethylene, CF3 Cl, CHF2Cl, CF2 CH2, C3 F8 and CO2.
Claim 7
Dependent Claim
12 words
A method according to claim 1 wherein said gas is carbon dioxide.
Claim 8
Dependent Claim
25 words
A method according to claim 6 wherein the pressure at which the extraction is conducted is from about 200 atmospheres to about 400 atmospheres gauge.
Claim 9
Dependent Claim
22 words
A method according to claim 6 wherein the temperature at which the extraction is conducted is from about 40* to about 60*C.
Claim 10
Dependent Claim
22 words
A method according to claim 7, wherein the temperature at which the extraction is conducted is from about 40* to about 60*C.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |