The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2015
Filed:
Jan. 31, 2011
Alex Saunois, Nogent-le-Roi, FR;
Jacques Legrand, Neuilly sur Eure, FR;
Eglantine Mercier, Rambouillet, FR;
Alex Saunois, Nogent-le-Roi, FR;
Jacques Legrand, Neuilly sur Eure, FR;
Eglantine Mercier, Rambouillet, FR;
Laboratoires Expanscience, Courbevoie, FR;
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.