Givaudan S.a.

Takasago International Corporation

S.p.c.m. Sa

Emmanuel Aussant

Ian Michael Harrison

Jonathan Warr

Stuart Bernard Fraser

Guillaume Jeanson

Sandra Guinebretiere

Frédéric Blondel

Frederic Blondel

Christian Quellet

Wolfgang Denuell

Ewelina Burakowska-Meise

Addi Fadel

Sarah El-Habnouni

Vladica Bocokic

Thomas Soltys

Nelly Bulgarelli

Maud Bernadette Bassereau

Stuart Fraser

Florent Robert

Nawal Benarous

Eduard Poels

Unno Masakatsu

Masakatsu Unno

Maud Bassereau

Core-shell microcapsules comprising a hydrophobic core surrounded by a shell comprising a thermosetting resin comprising moieties derived from polyisocyanates, substantially unprotonated chitosan and another amine different from chitosan, characterized in that the substantially unprotonated chitosan is delivered in the solid, powder form to the locus of the encapsulation reaction. The core-shell microcapsules are provided in the form of a slurry comprising 10 to 50 wt % of microcapsules, based on the total weight of the slurry, and the shell of the microcapsules comprises from 0.1 to 20 wt % of moieties derived from chitosan, based on the total weight of the shell.

Organic compounds

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).

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,

Use of an ampholyte copolymer as colloidal stabilizer in a process of encapsulating fragrance

An encapsulated perfume composition comprising at least one perfume-containing aminoplast core-shell microcapsule dispersed in an aqueous suspending medium, the microcapsule being characterized in that it bears a positive charge.

Encapsulated perfume compositions

Encapsulated perfume composition comprising at least one aminoplast core-shell microcapsule dispersed in a suspending medium, the microcapsule comprising a perfume-containing core encapsulated in a shell, said shell comprising a network of cross-linked aminoplast resin, wherein 75-100% of the resin comprises 50-90%, preferably from 60-85%, of a terpolymer and from 10-50%, preferably from 10-25%, of a polymeric stabilizer; the terpolymer comprising: (a) from 20-35 wt %, preferably 22-30% by weight of moieties derived from at least one triamine, (b) from 30-60 wt %, preferably 40-55% by weight of moieties derived from at least one diamine, (c) from 20-35 wt %, preferably 22-30% by weight of moieties derived from the group consisting of alkylene and alkylenoxy moieties having 1 to 6 methylene units, preferably 1 to 4 methylene units and most preferably 1 methylene unit. The encapsulated perfume composition is useful for the storage and dissemination of fragrance in various products, such as laundry products and fabric care products.

Microcapsules

The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of aminoplast core-shell microcapsules containing an active material, wherein the ampholyte copolymer comprises:

Use of an ampholyte copolymer as colloidal stabilizer

An encapsulated perfume composition for use in personal care products adapted to be applied to, and left on, the skin or hair of a human or animal subject, said encapsulated perfume composition comprising one or more polyurea capsules having a volume average diameter of 20 to 90 microns, and a capsule shell weight, which is 5 to 40% based on the total weight of the capsules.

Capsule composition

The present invention relates to core shell microcapsules for use in liquid consumer products, wherein: the microcapsule shell is made of starting materials such that 50%-100% by weight of said materials have a density equal to or less than 1.05 g/cm; the microcapsule core contains a fragrance composition comprising 20-100% by weight of at least one cyclic fragrance material with a density greater than 0.950 g/cmand a ClogP in the range of from 1.00 to 6.00; the weight ratio of core materials to shell materials is in the range from about 50:1 to about 1:1.

Core shell microcapsules and liquid consumer product

The invention relates to a core shell microcapsules containing a fragrance composition which comprises, prior to encapsulation: A) 40 to 100% by weight of at least one cyclic aromachemical material with a density between 0.950 g/cmand 1.500 g/cmand a ClogP value between 1.00 and 6.00; B) 0 to 80% by weight of at least one fragrance material with a density between 0.630 g/cmand 0.950 g/cm; and C) 0 to 50% by weight of at least one oil soluble organic compound having a density between 0.950 g/cmand 1.500 g/cm, where the sum of A), B) and C) equals 100%.

Fragrance composition for core shell microcapsules

A fragrance composition to be incorporated into the core of a core shell capsule, including:

Encapsulation of bulky fragrance molecules

The use of fragrance compositions comprising fragrance compounds selected among: aldehydes, &#x3b1;,&#x3b2;-unsaturated aldehydes, alcohols, ketones, and mixtures thereof in any home and personal care product, each fragrance compound being able to restrict the formation of indole to less than 0.01 ppm (wt/wt) after 24 hours incubation at room temperature in an airtight sealed vessel of suitable fresh human urine containing 0.28% by weight of each fragrance compound in order to prevent the development of indole based malodours from faecal and urine based soils.

Use of fragrance compositions for the prevention of the development of indole base malodours from fecal and urine based soils

The present invention relates to a process for the manufacture of a spray dried powder comprising:

Growing community of inventors

Paris, France

Emmanuel Aussant