Firmenich Sa

Jeffrey Dundale

Nicholas O'Leary

Addi Fadel

Jana Pika

Christelle Porcherot Lassallette

Robert Knab

The present disclosure provides fragrance compositions having an olfactive profile that changes with time. The fragrance compositions include at least two contrasting perfume accords. The at least two contrasting perfume accords provide an olfactory modulating effect, such that the fragrance compositions deliver a desirable scent with increased perceived intensity and improved longevity of perception.

Perfuming compositions

The aspects presented herein provide fragrance compositions having an olfacive profile that changes with time, wherein the fragrance compositions comprise at least two contrasting perfume accords that provide an olfactory modulating effect, wherein the perfume formulation delivers a desirable scent with increased perceived intensity and improved longevity of perception.

The invention concerns a composition capable of indicating by color change when consumer articles, particularly volatile material dispensers, containing or associated with the composition have become inefficient in use. The composition includes: a) a volatile liquid component, b) a non-volatile component of an oxide or hydroxide of the metals of group III or IV of the periodic table and a polymer obtainable by the reaction, in the presence of the volatile liquid component, of a functionalized polymer with a cross-linking, and c) a dye capable of changing color as a function of the medium in which it is incorporated. Optionally, the composition can also contain an effective amount of an acidic compound. The invention also concerns the consumer article containing the composition, in particular a device aimed to diffuse a volatile or partially volatile liquid, more specifically an air freshener.

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Hamilton, NJ, United States of America

Jeffrey Dundale