Givaudan S.a.

S.p.c.m. Sa

Sandra Guinebretiere

Emmanuel Aussant

Ian Michael Harrison

Guillaume Jeanson

Frédéric Blondel

Sarah El-Habnouni

Vladica Bocokic

Frederic Blondel

Florent Robert

Nawal Benarous

Eduard Poels

Disclosed is a process for preparing an encapsulated fragrance composition. The composition comprises a plurality of microcapsules dispersed in a dispersion medium. The microcapsules comprise a core and a shell around the core. The process comprises the consecutive steps of: The process comprises the additional step of adding a polyisocyanate (B), which is different from polyisocyanate (A).

Organic compounds

The invention relates to stable dispersion of negatively-charged aminoplast microcapsules in non-suspending detergent compositions containing an anionic surfactant. The microcapsules are stably dispersed by means of a cationic polyampholyte, which is embedded in the shells of said microcapsules.

The invention relates to an encapsulated fragrance composition including at least one microcapsule dispersed in a dispersion medium, said at least one microcapsule including a fragrance oil core and a positively charged shell, which includes a reaction product of at least one at least difunctional anionically modified isocyanate with an amine or alcohol, preferably a polyamine, and wherein the shell is formed around droplet of core material that is stabilized with a positively charged colloidal stabilizer. Furthermore, the invention relates to a process of formation of said encapsulated fragrance compositions.

The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of core-shell microcapsules containing a fragrance,

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Franconville, France

Sandra Guinebretiere