Method of making enhanced efficacy antiperspirant actives

Details Method of making enhanced efficacy antiperspirant actives Method of making enhanced efficacy antiperspirant actives

C - Chemistry, Metallurgy

01

F

C01F 7/02 (2006.01) B02C 23/18 (2006.01) C01F 7/00 (2006.01)

Patent

CA 2412478

This invention comprises: (1) a wet grinding method for enhancing the activity of an aluminum or an aluminum/zirconium salt without the dilution and heating traditionally required wherein the enhancement is described as forming a salt wherein the amount of smaller aluminum species as represented by Peak 4 + Peak 5 is increased by an amount of at least 10% over the parent salt; and, if zirconium is present, the area of Peak 1 in the parent salt is at least 10% greater than the area of Peak 1 after grinding; (2) an enhanced aluminum or aluminum/zirconium salt itself; and (3) anhydrous (less than 4 % water excluding waters of hydration for the enhanced salt) antiperspirant and/or deodorant products made with the salts described in (2).

L'invention concerne (1) un procédé de broyage humide permettant d'améliorer l'activité d'un aluminium ou d'un sel d'aluminium/zirconium sans la dilution et le chauffage traditionnellement nécessaires, l'amélioration consistant à former un sel dans lequel la quantité des plus petites espèces d'aluminium représentées par Pic 4 + Pic 5 est augmentée en une quantité d'au moins 10 % par rapport au sel de base. Avec la présence de zirconium, la zone Pic 1 du sel de base est au moins 10 % supérieure à la zone Pic 1 suite au broyage. L'invention concerne également (2) un aluminium amélioré ou un sel d'aluminium/zirconium, et (3) des produits anhydres (moins de 4 % d'eau, sauf les eaux d'hydratation du sel amélioré) antisudorifiques et/ou désodorisants fabriqués avec les sels décrits dans le point (2).

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