Antiperspirant compositions

A - Human Necessities – 61 – K

Patent

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Details

A61K 8/11 (2006.01) A61K 8/28 (2006.01) A61K 8/37 (2006.01) A61K 8/86 (2006.01) A61Q 15/00 (2006.01)

Patent

CA 2741635

Fragrance leaches rapidly from capsules having shells made from cross linked gelatin into volatile silicone oils. Unfortunately such oils are much favoured for anhydrous antiperspirant compositions. The rate and extent of leaching can be ameliorated greatly or nearly halted by employing as carrier oil, an ester oil or an ether oil, even in the presence of a significant fraction of volatile silicone oil. Consequently, the capability of antiperspirant compositions to generate detectable fragrance over an extended period after application to the skin is improved by employing ester or ether oil as all or part of the carrier liquid in which the antiperspirant is suspended.

La fragrance se lixivie rapidement, sous forme d'huiles de silicone volatiles, des capsules qui ont des enveloppes faites de gélatine réticulée. Malheureusement, ces huiles sont largement préférées dans les compositions antitranspirantes anhydres. La vitesse et l'ampleur de la lixiviation peuvent être considérablement améliorées ou pratiquement supprimées en employant, comme huile support, une huile ester ou une huile éther, même en présence d'une fraction significative d'huile de silicone volatile. Ainsi, la capacité de compositions antitranspirantes à produire une fragrance détectable pendant une période de temps prolongée après application sur la peau est améliorée par l'emploi d'une huile ester ou éther qui constitue la totalité ou une partie du liquide support dans lequel l'antitranspirant est mis en suspension.

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