C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 57/03 (2006.01) A61K 31/20 (2006.01) A61K 31/23 (2006.01) C07C 51/50 (2006.01) C07C 67/62 (2006.01) C07C 69/587 (2006.01) C11B 5/00 (2006.01) A61K 7/50 (1995.01)
Patent
CA 2200067
The invention concerns the field of chemistry, in particular therapeutical chemistry and provides a method for the stabilization of non-saturated fatty acids or their lower alkyl esters. The method comprises the steps of mixing a solution comprising the above-mentioned acids or esters in a non-hydroxylated inert solvent, with a cellulose hydroxyalkyl and then desolvating such a preparation in order to pulverize it. The preparation is then diluted or mixed with a pharmaceutically acceptable non-toxic inert carrier or excipient for preparing pharmaceutical formulations or with an inert diluent or carrier for cosmetic formulations.
L'invention concerne le domaine de la chimie et notamment de la chimie thérapeutique. Elle concerne un procédé de stabilisation d'acides gras non saturés ou de leurs esters d'alcoyle inférieur, qui consiste à mélanger une solution de celui-ci dans un solvant inerte non hydroxylé, avec une hydroxyalcoyl cellulose, puis à dessolvater une telle préparation pour la rendre parfaitement pulvérulente. Cette préparation est ensuite diluée ou mélangée à un véhicule ou à un excipient inerte non toxique pharmaceutiquement acceptable en vue de la réalisation de compositions pharmaceutiques ou avec un diluant ou un véhicule inerte en vue de la réalisation de compositions cosmétiques.
Grinda Jean-Robert
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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