High efficacy, low residue antiperspirant stick compositions

A - Human Necessities – 61 – K

Patent

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Details

A61K 8/92 (2006.01) A61K 8/02 (2006.01) A61K 8/26 (2006.01) A61K 8/28 (2006.01) A61K 8/31 (2006.01) A61K 8/37 (2006.01) A61K 8/44 (2006.01) A61K 8/891 (2006.01) A61Q 15/00 (2006.01)

Patent

CA 2407621

Disclosed are anhydrous antiperspirant sticks that comprise from about 0.5 % to about 60 % by weight of particulate antiperspirant active; from about 16 % to about 50 % by weight of a solid suspending agent; from about 10 % to about 80 % by weight of a volatile silicone; and from about 1% to about 35 % by weight of a non volatile silicone, wherein the sticks are preferably substantially free of nonvolatile organic liquids having a C log P value greater than 5.5, and have a product hardness of at least about 600 gram.force. The sticks are further characterized by defined low residue and/or high antiperspirant efficacy measures. These compositions contain relatively high solid suspending agent concentrations of at least 16 % by weight and still provide low residue performance and high antiperspirant efficacy.

L'invention se rapporte à des bâtonnets antisudorifiques anhydres qui comportent de 0,5 % environ à 60 % environ en poids d'un agent actif antisudorifique particulaire; de 16 % environ à 50 % environ en poids d'un agent de suspension solide; de 10 % environ à 80 % environ en poids d'une silicone volatile; et de 1 % environ à 35 % environ en poids d'une silicone non volatile. Lesdits bâtonnets ne contiennent de préférence pas de liquides organiques non volatils ayant une valeur C log P supérieure à 5,5 et ils présentent une dureté supérieure ou égale à 600 grammes-force environ. Ces bâtonnets se caractérisent par ailleurs par des valeurs mesurées définies de faible tendance à former des résidus et/ou de haute efficacité antisudorifique. Ces compositions contiennent des concentrations en agents de suspension solides relativement élevées d'au moins 16 % en poids et elles offrent cependant des caractéristiques de faible tendance à former des résidus et de haute efficacité antisudorifique.

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