Firmenich Sa

Alain Trachsel

Andreas Herrmann

Damien Berthier

Nicolas Paret

Peter Fankhauser

Youqing Shen

Umberto Maddalena

Sylvain Etter

Johannes Feser

Described herein are compounds of formula (I) that are able to provide a long-lasting or substantive odor, in particular floral and/or fruity odor, to the environment. Also described herein is a method of imparting a long-lasting odor, in particular a fresh green, floral and/or fruity odor, to surfaces, such as hard surfaces, fabric, skin or hair. Also described herein are a method of using said compounds in perfumery and perfuming compositions or perfumed articles including the compounds described herein.

Compounds for providing a long-lasting floral and fruity odor

The present invention relates to the field of perfumery. More particularly, it concerns compounds comprising at least one &#x3b2;-thio carbonyl or nitrile moiety capable of liberating an active molecule selected from an &#x3b1;,&#x3b2;-unsaturated ketone, aldehyde or nitrile. The present invention concerns also the use of said compounds in perfumery as well as the perfuming compositions or perfumed articles comprising the invention's compounds. (I) wherein: a) m represents an integer from 1 to 6; b) Pro represents a hydrogen atom or a group susceptible of generating an odoriferous &#x3b1;,&#x3b2;-unsaturated ketone, aldehyde or nitrile and is represented by the formulae (II) or (II') in which the wavy line indicates the location of the bond between said Pro and the sulfur atom S; and at least one of the Pro groups is of the formula (II) or (II&#x2032;). 

Compounds for a controlled release of active perfuming molecules

The present invention relates to water-dispersible microcapsules that include an oil phase, e.g. a perfume, containing a photolabile compound capable of generating a gas upon exposure to light. The gas is able to cause an extension or the breaking of the microcapsule allowing the release of the oil phase and thus increasing the long-lastingness of the odor perception. The present invention concerns also the use of such microcapsules in perfumery as well as the perfuming compositions or perfumed articles that include such microcapsules therein to provide a prolonged release of fragrant molecules.

Microcapsules containing a gas-releasing photolabile compound and uses thereof

The present invention relates to water-dispersable microcapsules comprising an oil phase, e.g. a perfume, containing a photolabile &#x3b1;-ketoacid or &#x3b1;-ketoester capable of generating a gas upon exposure to light. The gas is able to cause an extension or the breaking of the microcapsule allowing the release of the oil phase and thus increasing the long-lastingness of the odor perception. The present invention concerns also the use of said microcapsules in perfumery as well as the perfuming compositions or perfumed articles comprising the invention's microcapsules to provide a prolonged release of fragrant molecules.

Growing community of inventors

Geneva, Switzerland

Alain Trachsel