Givaudan S.a.

Andras Borosy

Christian Quellet

Philippe Blondeau

Alice Bresson Boil

Celine Ropartz-Lebel

Michele Brubaker

Disclosed are perfume compositions containing perfume ingredients selected on the basis that they are able to be stably incorporated into core-shell microcapsules. Perfume selection rules are based on a molecular descriptor of the electron density distribution within a perfume ingredient&#x2014;RECON VOLTAE. Perfume ingredients having known RECON_VOLTAE values larger than about 1200 Bohr, more particularly larger than 1540 Bohr, and more particularly still larger than about 1750 Bohrare particularly suitable for encapsulation.

Encapsulated perfume compositions

A liquid electrical air care device for dispensing a liquid composition from a reservoir containing the liquid composition, wherein the liquid composition includes 0.1% to 10% by weight of the total liquid composition of a fragrance ingredient having a standard equilibrium headspace concentration (HS) of greater than 12 to 50 micrograms/litre and a Flexibility Index (FI) of 45 or more, and/or 0.1% to 7% by weight of the total liquid composition of a fragrance ingredient having a standard equilibrium headspace concentration (HS) between 5 and 12 micrograms/litre and a Flexibility Index (FI) of between 20 and 44, and/or 0 to 1% by weight of the total liquid composition of a fragrance ingredient having a standard equilibrium headspace concentration (HS) of less than 5 micrograms/litre and a Flexibility Index of between 7 and 19 (FI).

Growing community of inventors

Duebendorf, Switzerland

Andras Borosy