Firmenich Sa

Nicolas Paret

Damien Berthier

Andreas Herrmann

Lahoussine Ouali

Géraldine Leon

Alain Trachsel

Serge Lamboley

Arnaud Struillou

Marlène Jacquemond

Yongtao Wu

Estelle Rassat

Kitty Van Gruijthuijsen

Myléne Therrien

Mylène Therrien

Described herein is a process for a preparation of microcapsules based on cleavable multi-alcohols. Also described herein are cleavable multi-alcohol-based microcapsules. Also described herein are perfuming compositions and consumer products including such capsules, in particular perfumed consumer products in the form of home care or personal care products.

Cleavable multi-alcohol-based microcapsules

Described herein is a new process for the preparation of polysuccinimide derivatives-based core-shell microcapsules. Also described are microcapsules, as well as perfuming compositions and consumer products including these microcapsules, in particular perfumed consumer products in the form of home care or personal care products.

Process for preparing polysuccinimide derivatives-based microcapsules

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 a process for producing perfume-containing microcapsules with improved olfactive performance by using at least one aromatic polyisocyanate with a specific mixture of polyamines. Microcapsules obtainable by such a process and perfuming compositions or the consumer products comprising these microcapsules are also objects of the invention. In particular, the microcapsules can be used in home or personal care products.

Process for preparing polyurea microcapsules

The present invention relates to water-dispersable microcapsules comprising an oil phase, e.g. a perfume, containing a photolabile polymer comprising &#x3b1;-ketoacid or &#x3b1;-ketoester group 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 perfuming compositions or perfumed articles comprising the invention's microcapsules to provide a prolonged release of fragrant molecules.

Microcapsules containing a gas-generating photolabile polymer and uses thereof

The present invention relates to water-dispersible core-shell microcapsules essentially free of formaldehyde. In particular it concerns core-shell microcapsules having a shell obtained by reacting polyisocyanates or polyoxirans cross-linkers and oligomeric compositions which are the reaction products between a polyamine component and a particular mixture of glyoxal and a C2,2-dialkoxy-ethanal. The present invention also utilizes the invention's core-shell microcapsules as part of a perfuming composition or of a perfuming consumer product.

Stable formaldehyde-free microcapsules

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.

Polysiloxane conjugates as fragrance delivery systems

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.

Microcapsules containing a gas-generating photolabile ketoacid or ketoester and uses thereof

The present invention relates to water-dispersible core-shell microcapsules essentially free of formaldehyde. In particular it concerns core-shell microcapsules having a shell obtained by reacting polyisocyanates or polyoxirans cross-linkers and oligomeric compositions which are the reaction products between a polyamine component and a particular mixture of glyoxal and a C2,2-dialkoxy-ethanal. The present invention comprises also the invention's core-shell microcapsules as part of a perfuming composition or of a perfuming consumer product.

The present invention relates to water-dispersible core-shell microcapsules essentially free of formaldehyde. In particular it concerns oligomeric compositions comprising, and the microcapsules obtained from, particular reaction product between a polyamine component and a particular mixture of glyoxal and a C2,2-dialkoxy-ethanal. The present invention comprises also the invention's core-shell microcapsules as part of a perfuming composition or of a perfuming consumer product.

The present invention relates to core-shell microcapsules comprising photolabile 2-oxoacetate pro-fragrance molecules capable of liberating an active molecule such as, for example, an aldehyde or ketone upon exposure to light. 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 aldehydes and/or ketones.

Microcapsules and uses thereof

The present invention relates to the field of perfumery. More particularly, it concerns co-polymeric latex particles derived from 2-oxo-2-(3- or 4-vinylphenyl)acetates capable of liberating an active molecule such as, for example, an aldehyde or ketone upon exposure to light. The present invention concerns also the use of said latex in perfumery as well as the perfuming compositions or perfumed articles comprising the invention's latex.

Photolabile latex for the release of perfumes

Water-dispersible core-shell microcapsules that are essentially free of formaldehyde. Also, oligomeric compositions of, and microcapsules obtained from, particular reaction products between a polyamine component and a particular mixture of glyoxal and a C2,2-dialkoxy-ethanal. These compositions and microcapsules can be used as part of a perfuming composition or of a perfumed consumer product.

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Geneva, Switzerland

Nicolas Paret