Method of preparing carrier liquids

Details Method of preparing carrier liquids Method of preparing carrier liquids

A - Human Necessities

61

K

A61K 8/00 (2006.01) A61K 8/04 (2006.01) A61K 8/26 (2006.01) A61K 8/41 (2006.01) A61K 8/89 (2006.01) A61Q 15/00 (2006.01)

Patent

CA 2601346

The invention provides a method for the preparation of a carrier liquid which comprises the steps of: (I) preparing an emulsion comprising: a) an aqueous phase, b) A second liquid phase which is volatile and which is immiscible with aqueous phase (a), c) A carrier material which is soluble in the continuous phase of the emulsion and which is liquid at ambient temperature, and d) A dopant which is soluble in the disperse phase of the emulsion, (II) ooling the emulsion produced in step (I) to a temperature at which at least both the continuous phase and the carrier material become solid, (III) removing water and the volatile second phase from the cooled emulsion in vapor form, and, (IV) returning the product of step (III) to ambient temperature to obtain a liquid product with the dopant dispersed therein.

L'invention concerne un procédé de préparation d'un liquide support. Ce procédé comprend les étapes consistant : (I) à préparer une émulsion qui comprend : a) une phase aqueuse, b) une deuxième phase liquide volatile et immiscible avec la phase aqueuse (a), c) un matériau support soluble dans la phase continue de l'émulsion et liquide à température ambiante, et d) un dopant soluble dans la phase dispersée de l'émulsion ; (II) à refroidir l'émulsion obtenue dans l'étape (I) à une température à laquelle au moins la phase continue et le matériau support se solidifient ; (III) à éliminer l'eau et la deuxième phase volatile de l'émulsion refroidie sous forme de vapeur ; et (IV) à renvoyer le produit de l'étape (III) à température ambiante afin d'obtenir un produit liquide dans lequel est dispersé le dopant.

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