Composition containing body activated fragrance for contacting the skin and method of use

US5626852A · kind A · utility

Assignees

• The Mennen Company · US
• TAKASAGO INTERNATIONAL CORPORATION · JP

Inventors

• Robert Suffis · Morristown, US
• Morton L. Barr · East Brunswick Township, US
• Kenya Ishida · Yokohama, JP
• Kiyohito Sawano · Yokohama, JP
• Augustinus G. Van Loveren · Bedford, US
• Tetsuo Nakatsu · Chappaqua, US
• Carter B. Green · Stony Point, US
• Gary A. Reitz · Walnut Creek, US
• Raphael K. L. Kang · Pleasant Hill, US
• Toshiya Sato · Yokohama, JP

Key dates

• Filing date: Dec 23, 1994
• Grant date: May 6, 1997
• Expiry date: Dec 23, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S424/05
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

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 rele…