C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/50 (2006.01) A61K 8/06 (2006.01) A61K 8/11 (2006.01) A61K 8/64 (2006.01) A61K 8/96 (2006.01) B01F 17/00 (2006.01) B01J 13/04 (2006.01) C11D 3/37 (2006.01) C11D 3/382 (2006.01) C11D 17/00 (2006.01) C11D 17/08 (2006.01)
Patent
CA 2318383
The invention concerns water dispersible granulates comprising: at least a hydrophobic perfume (P), in the form of droplets, finely divided in and encapsulated by a water soluble or water dispersible solid organic matrix (MO) selected among: polypeptides (PP) of plant or synthetic origin; polyelectrolytes (PE) belonging to the family of weak polyacids; or their mixtures; and at least an emulsifying agent (AE) at the droplet/matrix interface. The invention also concerns a method, in two steps, for preparing said granulates, the first step consisting in preparing an emulsion in water comprising at least a hydrophobic perfume (P), at least an emulsifying agent (AE); and said water soluble or water dispersible organic matrix (MO), the second step consisting in drying said emulsion until a granulate is formed.
Granulés dispersables dans l'eau, comprenant au moins un parfum hydrophobe (P), sous forme de gouttelettes, finement divisé dans et encapsulé par une matrice organique solide hydrosoluble ou hydrodispersable (MO), choisie parmie: les polypeptides (PP) d'origine végétale ou synthétique; les polyélectrolytes (PE) appartenant à la famille des polyacides faibles, ou leurs mélanges; et au moins un agent émulsifiant (AE) à l'interface gouttelette/matrice. Procédé de préparation en deux étapes, desdits granulés, la première étape consistant à préparer une émulsion dans l'eau comprenant au moins un parfum hydrophobe (P), au moins un agent émulsifiant (AE) et ladite matrice organique hydrosoluble ou hydrodispersable (MO), la deuxième étape consistant à sécher ladite émulsion jusqu'à formation d'un granulé.
Guerin Gilles
Joubert Daniel
Morvan Mikel
Rhodia Chimie
Robic
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