Fragrance friendly and cost effective antiperspirant actives

Details Fragrance friendly and cost effective antiperspirant actives Fragrance friendly and cost effective antiperspirant actives

A - Human Necessities

61

K

A61K 8/28 (2006.01) A61K 8/02 (2006.01) A61K 8/26 (2006.01) A61Q 15/00 (2006.01)

Patent

CA 2570380

A cost effective process is provided for making stable, efficacious, amino acid and polyhydric alcohol free concentrated aqueous aluminum zirconium salt solutions. Absence of amino acid, low iron content and low trace metal impurity levels improve compatibility with fragrances and minimizes the probability of the product color change and possibly fabric staining significantly. The novel aluminum zirconium actives also minimize iron contribution to underarm area that supports growth of microflora which is responsible for axillary malodour by the biotransformation of nonodorous precursors present in perspiration. The astringent complexes of the present invention may be obtained in solution or dry powder form. As a result, the complexes are satisfactory for use in any of wide variety of conventional antiperspirant forms.

L'invention porte sur un procédé rentable de fabrication de solutions salées d'aluminium et de zirconium aqueuses concentrées sans alcool polyhydrique et sans acide aminé, efficace et stable. L'absence d'acide aminé, une teneur en faible et des niveaux d'impuretés métalliques à faibles traces permettent d'améliorer la compatibilité avec des parfume et de minimiser de manière significative la probabilité de changement de couleur du produit et les tâches éventuelles du tissu. Les actifs de zirconium et d'aluminium nouveaux minimisent également la contribution du fer à la zone des aisselles qui favorise la croissance de la flore microbienne responsable des odeurs axillaires désagréables par biotransformation de précurseurs inodores présents dans la transpiration. Les complexes astringents de l'invention peuvent être obtenus sous forme de solution ou de poudre sèche. Ainsi, ces complexes s'utilisent de manière satisfaisante dans n'importe quelle sorte de formes antitranspiration classiques.

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