A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 31/74 (2006.01) A61K 7/32 (1995.01) A61K 7/15 (1995.01) A61K 7/46 (1995.01) A61K 7/48 (1995.01)
Patent
CA 2123992
Described is a fragrancing composition having fragrancing components that are not activated until, e.g., application to the skin of a human. The composition is akaline or (if anhydrous) capable of producing an alkaline pH when in contact with water, prior to application, and includes (I) a vehicle for application of the composition, and (2) at least one potential fragrance that is at least one compound having little or no odor in the alkaline composition but which, e.g., is hydrolyzed in a lower pH environment to produce compounds having a relatively strong aroma. Upon application of the alkaline composition to the skin surface, the strong buffering capacity of the skin (the surface of which has a normal pH of 5.5-7.0) neutralizes alkalinity of the composition (lowers pH) so as to restore normal skin surface pH; the potential fragrance is then hydrolyzed at the lower pH to release the compound having relatively strong aroma.
Composition fragrante présentant des composants fragrants non activés avant, par exemple, application sur la peau d'un individu. La composition est alkaline ou (si anhydre) capable de produire un pH alcalin lorsqu'elle est au contact de l'eau, avant application, elle comporte (1) un véhicule d'application de la composition, et (2) au moins une fragrance potentielle laquelle est au moins un composé présentant peu ou pas d'odeur dans la composition alcaline, mais laquelle, par exemple, est hydrolysée dans un environnement de pH inférieur pour produire des composés ayant un arôme relativement fort. Lors de l'application de la composition alcaline sur la surface de la peau, la forte capacité de tamponnement de la peau (dont la surface présente un pH normal compris entre 5,5 et 7,0) neutralise l'alcalinité de la composition (elle abaisse le pH) afin de rétablir le pH normal de la surface de la peau, la fragrance potentielle étant ensuite hydrolysée au pH inférieur afin de libérer le composé ayant un arôme relativement fort.
Barr Morton Lawrence
Ishida Kenya
Sato Toshiya
Sawano Kiyohito
Suffis Robert
Colgate-Palmolive Company
Smart & Biggar
Takasago International Corporation
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