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:
Sep. 24, 2002
Filed:
Oct. 07, 1999
Mazin Nicola, Worthing, GB;
Advanced Phytonics Limited, Ossett, GB;
Abstract
There is described a process for the extraction of a least one relatively polar component form a material which may be naturally occurring or a synthetic mixture, the process comprising the steps of: (a) contacting the material with a solvent mixture comprising C1 to C4 fluorinated hydrocarbon, especially 1,1,1,2-tetrafluorethan and a co-solvent having a dielectric constant (at 20° C.) of at least 6 so as to charge the solvent mixture wherein the co-solvent is selected from the group consisting of amides, sulfoxides, alcohols, ketones, organic acid, carboxylic acid derivatives, cyanide derivatives, ammonia sulfur containing molecules, inorganic acids and nitro derivatives and separating the charged solve mixture from the material to isolate the polar component.