Methods for forming stabilized metal salt particles

Details Methods for forming stabilized metal salt particles Methods for forming stabilized metal salt particles

A - Human Necessities

61

L

A61L 12/08 (2006.01) A61L 27/54 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2701632

A process comprising: a) forming a first solution comprising at least one salt precursor; b) forming a second solution comprising a complex formed from at least one metal agent and at least one dispersing agent in a particle size stabilizing effective amount; c) adding said second solution to said first solution at a rate sufficient to maintain a clear solution throughout addition and to form a product solution comprising stabilized metal salt particle having a mean particler size of less than about 200 nm; d) drying said product solution to form an antimicrobial metal salt powder comprising 0.01 to about 10 weight % metal in the antimicrobial metal salt powder.

La présente invention concerne un procédé comprenant : a) la formation d'une première solution comprenant au moins un précurseur de sel ; b) la formation d'une seconde solution comprenant un complexe formé à partir d'au moins un agent métallique et d'au moins un agent de dispersion en une quantité efficace stabilisant la taille des particules ; c) l'ajout de ladite seconde solution à ladite première solution à un taux suffisant pour conserver une solution claire pendant toute la durée de l'ajout et pour former une solution de produit comprenant des particules stabilisées de sel de métal ayant un diamètre moyen de particules inférieur à environ 200 nm ; d) le séchage de ladite solution de produit pour former une poudre de sel de métal antimicrobienne comprenant de 0,01 à environ 10 % en poids de métal dans la poudre de sel de métal antimicrobienne.

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