Firmenich Sa

Marlène Jacquemond

Lahoussine Ouali

Philipp Erni

Damien Berthier

Arnaud Struillou

Nicolas Paret

Estelle Rassat

Huda Jerri

Grégory Dardelle

Brian MacDougall

Claudie Bellouard Drevet

Otto Gräther

Described herein is a process for preparing microcapsules. More particularly, the process is characterized by the fact that it requires limited amounts of water for preparing microcapsules. Microcapsules obtainable by the disclosed process as well as consumer products including those microcapsules are also described.

Process for preparing microcapsules

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 invention relates to a method of making multilayer core/shell microcapsules for delivery of active agents such as fragrance components of perfume oils. The method includes forming an outer shell by coacervation surrounding an internal phase which contains the active agent; and forming an inner shell by interfacial polymerization at the interface between the internal phase and the outer shell. The internal phase contains the active agent. The microcapsules are typically incorporated in a consumer product wherein the multilayer shell prevents the active agent from release until desired, generally during use of the consumer product.

Multilayered core/shell microcapsules

More particularly, the present invention relates to a process for producing antimicrobial core-shell microcapsules with immobilized silver particles into and onto the shell. The latter can be used in home or personal care products for delivering a perfuming and malodor-countering effect. The microcapsules obtainable by such a process and the consumer products comprising these microcapsules are also objects of the invention.

Process for preparing antimicrobial microcapsules

The present invention relates to organic-inorganic hybrid core-shell microcapsules encapsulating an active ingredient such as a perfume and having a shell made from the hydrolysis and condensation reaction of particular polyalkoxysilane macro-monomeric compositions.

Hybrid perfume microcapsules

The present invention relates to perfume-containing microcapsules having both an aqueous inner phase and an oily inner phase, which can be used in home or personal care products, as well as to the process for producing these microcapsules and the consumer products comprising them.

Microcapsules and uses thereof

The present invention relates to polyurea core-shell microcapsules having a polyurea shell comprising the reaction product of a polyisocyanate with guanazole and an amino acid. The invention concerns the capsules themselves as well as perfuming compositions and perfumed articles containing them and a process for producing them.

Polyurea microcapsules

The present invention relates to a process for producing perfume-containing microcapsules having both an aqueous inner phase and an oily inner phase, which can be used in home or personal care products, as well as to the process for producing these microcapsules and the consumer products containing them.

The present invention relates to a process for producing perfume-containing microcapsules with a polyurea wall that can be used in home or personal care products, as well as to the microcapsules themselves and consumer products that include or incorporate these microcapsules. The process of the invention uses a particular colloidal stabilizer in the form of an aqueous solution that includes defined proportions of particular polymers.

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Geneva, Switzerland

Marlène Jacquemond