Liquid/liquid extraction
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 17, 2015
Grant Date -
Feb 7, 2013
app pub date -
Jan 31, 2011
filing date -
Jan 29, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a method for the extraction of all unsaponifiable fraction contained in a vegetable oil, an oil originating from a micro-organism or a vegetable butter or in a co-product from the vegetable oil refining industry, such as deodorization discharge. The method includes at least: A) a step comprising the transformation of the aforementioned oils, butter or co-product from the vegetable oil refining industry or oils originating from micro-organisms into a hydro-alcoholic solution by means of, in particular, a step selected from saponification and esterification steps; B) a step comprising the extraction of the hydro-alcoholic solution in which the fatty fraction is separated from the unsaponifiable fraction by means of liquid/liquid extraction; and C) an optional step comprising the purification of the unsaponifiable fraction, selected from the group containing crystallization and liquid/liquid extraction steps. According to the invention, at least one step from the liquid/liquid extraction steps in step B, the crystallization steps in step C and the liquid/liquid extraction steps in step C is performed using a first solvent system containing a concentration of solvent selected from among: fluorinated aromatic solvents, particularly trifluorotoluene (BTF) and hexafluorobenzene (BHF); tert-butyl ethers, particularly 2-ethoxy-2-methylpropane, also known as ethyl-tert-butyl-ether (ETBE); solvents comprising at least one silicon atom, particularly hexamethyldisiloxane (HMDS) and tetramethylsilane (TMS); methyl-tetrahydrofuran (MeTHF); and mixtures thereof, representing at least 50 vol.-% in relation to the total volume of the solvent system. The invention also relates to the fractions obtained using this method and to compositions containing said fractions.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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LABORATOIRES EXPANSCIENCE | 92048 PARIS LA DÉFENSE CEDEX |
International Classification(s)

- 2011 Application Filing Year
- C11B Class
- 402 Applications Filed
- 109 Patents Issued To-Date
- 27.12 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Legrand, Jacques | Neuilly sur Eure, FR | 30 | 329 |
# of filed Patents : 30 Total Citations : 329 | |||
Mercier, Eglantine | Rambouillet, FR | 5 | 10 |
# of filed Patents : 5 Total Citations : 10 | |||
Saunois, Alex | Nogent-le-Roi, FR | 18 | 93 |
# of filed Patents : 18 Total Citations : 93 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- C11B Class
- 0 % this patent is cited more than
- 10 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 17, 2026 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Oct 27, 2010 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Apr 17, 2008 | P | Published | |
Oct 05, 2007 | F | Filing | |
Oct 02, 2007 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJITA, TAKASHI;REEL/FRAME:020025/0739 Owner name: CANON KABUSHIKI KAISHA, JAPAN Effective Date: Oct 02, 2007 |
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