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AssigneesThe Mennen Company, Takasago International Corporation
InventorsRobert Suffis, Morton L. Barr, Kenya Ishida, Kiyohito Sawano, Augustinus G. van Loveren, Tetsuo Nakatsu, Carter B. Green, Gary A. Reitz, Raphael K. L. Kang, Toshiya Sato, deceased
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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 alkaline or (if anhydrous) capable of producing an alkaline pH when in contact with water, prior to application, and includes (1) a vehicle such that when the composition is in contact with water, prior to application, the composition is at an alkaline pH; 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. The potential fragrance can be incorporated as a component of a transparent (clear) deodorant stick composition for application to human axillary regions, the fragrance being released after application to the body.
A composition for application to the skin, the composition being capable of producing an alkaline pH when in contact with water and including (1) a vehicle such that when the composition is in contact with water, the composition is at the alkaline pH, and (2) at least one potential fragrance, the at least one potential fragrance being at least one compound having a first level of aroma in the composition, and reacting when in contact with the skin to respectively produce a compound having a fragrance, the fragrance being of a second level of aroma, the second level being stronger than the first level, wherein the at least one potential fragrance is selected from the group consisting of heliotropine ethylene glycol acetal, ionone dialkyl ketal, methyl naphthyl ketone dialkyl ketal, citral polyol acetal, .alpha.-amyl cinnamaldehyde dialkyl acetal, .alpha.-amyl cinnamaldehyde polyol acetal, vanillin dialkyl acetal, vanillin alkylene acetal, anisic aldehyde dialkyl acetal, anisic aldehyde polyol acetal, citral dialkyl acetal, and vanillin polyol acetal.
A composition for imparting a fragrance, the composition being capable of producing an alkaline pH when in contact with water and including (1) a vehicle such that when the composition is in contact with water, the composition is at an alkaline pH, and (2) at least one potential fragrance, the at least one potential fragrance being at least one compound having a first level of aroma in the composition at the alkaline pH, but reacting in a more acidic environment than the alkaline pH to produce a compound having a fragrance, the fragrance being of a second level of aroma that is stronger than the first level, wherein the at least one potential fragrance is selected from the group consisting of heliotropine ethylene glycol acetal, ionone dialkyl ketal, methyl naphthyl ketone dialkyl ketal, citral polyol acetal, .alpha.-amyl cinnamaldehyde dialkyl acetal, .alpha.-amyl cinnamaldehyde polyol acetal, vanillin dialkyl acetal, vanillin alkylene acetal, anisic aldehyde dialkyl acetal, anisic aldehyde polyol acetal, citral dialkyl acetal, and vanillin polyol acetal.
A method of providing a fragrance, comprising the steps of:
A composition for application to the skin, the composition being capable of producing an alkaline pH when in contact with water and including (1) a vehicle such that when the composition is in contact with water, the composition is at the alkaline pH, and (2) at least one potential fragrance, the at least one potential fragrance being at least one compound having a first level of aroma in the composition, and reacting when in contact with the skin to respectively produce a compound having a fragrance, the fragrance being of a second level of aroma, the second level being stronger than the first level, wherein the at least one potential fragrance is selected from the group consisting of anisaldehyde diethyl acetal, anisaldehyde propylene glycol acetal, benzaldehyde dimethyl acetal, vanillin diethyl acetal, vanillin propylene glycol acetal, heliotropin diethyl acetal, heliotropin ethylene glycol acetal, alpha ionone diethyl ketal, beta ionone diethyl ketal, beta methyl ionone diethyl ketal, amyl cinnamic aldehyde diethyl acetal, amyl cinnamic aldehyde dimethyl acetal, nonanal dimethyl acetal, methyl naphthyl ketone diethyl ketal, acetyl tetralin diethyl ketal, citral dimethyl acetal, citral propylene glycol acetal, laurinal diethyl acetal, heridon, isobutyl aldehyde diethyl acetal, leaf acetal, talia and troenan.
A composition for imparting a fragrance, the composition being capable of producing an alkaline pH when in contact with water and including (1) a vehicle such that when the composition is in contact with water, the composition is at an alkaline pH, and (2) at least one potential fragrance, the at least one potential fragrance being at least one compound having a first level of aroma in the composition at the alkaline pH, but reacting in a more acidic environment than the alkaline pH to produce a compound having a fragrance, the fragrance being of a second level of aroma that is stronger than the first level, wherein the at least one potential fragrance is selected from the group consisting of anisaldehyde diethyl acetal, anisaldehyde propylene glycol acetal, benzaldehyde dimethyl acetal, vanillin diethyl acetal, vanillin propylene glycol acetal, heliotropin diethyl acetal, heliotropin ethylene glycol acetal, alpha ionone diethyl ketal, beta ionone diethyl ketal, beta methyl ionone diethyl ketal, amyl cinnamic aldehyde diethyl acetal, amyl cinnamic aldehyde dimethyl acetal, nonanal dimethyl acetal, methyl naphthyl ketone diethyl ketal, acetyl tetralin diethyl ketal, citral dimethyl acetal, citral propylene glycol acetal, laurinal diethyl acetal, heridon, isobutyl aldehyde diethyl acetal, leaf acetal, talia and troenan.
A method of providing a fragrance, comprising the steps of:
Dependencies are inferred from the claim text.