A - Human Necessities – 23 – K
Patent
A - Human Necessities
23
K
A23K 1/00 (2006.01)
Patent
CA 2746359
A process is described for obtaining free flowable, carrier free powders from aqueous solutions of deliquescent quaternary ammonium compounds in a two step process, comprising a drying and a powder mixing step. The excellent free-flowing and stability characteristics of the final product could only be obtained when among possible other additives at least one uni-valent metal fatty acid salt is added to the liquid phase in the drying step and at least one multivalent metal fatty acid salt in the powder mixing step. A surprising synergy was observed between these additives when applied as described in the present inven-tion.
La présente invention concerne un procédé permettant d'obtenir des poudres fluentes sans excipient à partir de solutions aqueuses de composés d'ammonium quaternaire déliquescents qui comprend une étape de séchage et une étape de mélange de la poudre. Les excellentes caractéristiques de fluidité et de stabilité du produit final ne peuvent être obtenues que lorsque parmi les autres additifs possibles, au moins un sel d'acide gras d'un métal monovalent est ajouté à la phase liquide à l'étape de séchage et au moins un sel d'acide gras d'un métal multivalent est ajouté à l'étape de mélange de la poudre. Une synergie surprenante est observée entre ces additifs quand ils sont appliqués comme décrit.
Moonen Kristof
Scheldeman Daan
Robic
Taminco
LandOfFree
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