Antiperspirant gel compositions comprising chelators

A - Human Necessities – 61 – K

Patent

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Details

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

Patent

CA 2189564

The subject invention relates to antiperspirant gel compositions comprising chelators. The subject invention also relates to a process for the manufacture of antiperspirant gel compositions comprising the steps of (a) pre-mixing a chelator with an antiperspirant active in a substantially water free environment; and (b) adding a gelling agent and a liquid base material to the product of step (a) in a substantially water free environment. The antiperspirant gel stick composition comprising: (a) an antiperspirant active, (b) a gelling agent: (i) a primary gellant, 12-hydroxystearic acid derivatives and (9) a secondary gellant, n-acyl amino acid amide derivatives, (c) a chelator capable of complexing with the active, (d) a liquid base material.

La présente invention concerne des compositions antisudorales sous forme de gel contenant des chélateurs. Elle concerne également un procédé de fabrication de compositions antisudorales sous forme de gel. Ce procédé consiste à: (a) prémélanger un chélateur et un ingrédient actif de la composition antisudorale dans un environnement pratiquement exempt d'eau et (b) ajouter un agent gélifiant et une base liquide au produit de l'étape (a) dans un environnement pratiquement exempt d'eau. La composition antisudorale sous forme de gel, en bâtonnet, contient: (a) un ingrédient actif antisudoral, (b) un système gélifiant constitué par (i) un agent gélifiant primaire, en l'occurrence des dérivés de l'acide 12-hydroxystéarique et (ii) un agent gélifiant secondaire, en l'occurrence des dérivés amides d'un acide aminé portant un groupe N-acyle, (c) un chélateur capable de former un complexe avec l'ingrédient actif et (d) une base liquide.

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