Firmenich Sa

Yongtao Wu

Lahoussine Ouali

Damien Berthier

Andreas Herrmann

Arnaud Struillou

Nicolas Paret

Estelle Rassat

Jia-Jun Shen

Described herein are hybrid microcapsules with a hydrophobic material-based core, such as a perfume, and a polymeric shell including chitosan particles. Processes for preparing such microcapsules are also described, as are perfuming compositions and consumer products including the capsules, in particular, perfumed consumer products in the form of home care or personal care products.

Hybrid microcapsules

The present invention relates to a process for the preparation of formaldehyde-free organic-inorganic microcapsules, comprising a hydrophobic active ingredient-based core, preferably a perfume or a flavour, and a shell comprising inorganic particles consisting of non-chemically surface modified inorganic particles. Microcapsules obtained by said process are also an object of the invention. Consumer products comprising said capsules, in particular perfumed consumer products in the form of home care or personal care products, are also part of the invention.

The present invention relates to a process for the preparation of organic-inorganic microcapsules, with a flavor or fragrance core and a hybrid shell composed of at least two types of inorganic particles that are cross-linked. Microcapsules obtained by said process are also an object of the invention. Consumer products comprising said capsules, in particular perfumed consumer products in the form of home care or personal care products, are also part of the invention.

The present invention relates to the field of perfumery. More particularly, it concerns polymers derived from siloxane derivatives and comprising at least one &#x3b2;-thio carbonyl moiety capable of liberating an active molecule such as, for example, an &#x3b1;,&#x3b2;-unsaturated ketone or aldehyde. The present invention concerns also the use of polymers in perfumery as part of a perfuming or malodor counteracting composition as well as the perfuming compositions or perfumed articles comprising the invention's compounds.

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Shanghai, China

Yongtao Wu