Disclosed are stable microcapsule compositions each containing a microcapsule dispersed in an aqueous phase and a stabilizing agent. The microcapsule compositions are stable for at least 4 weeks when storing at 45° C., and the microcapsule composition is considered stable when (i) the composition has a viscosity of 3000 cP or less and (ii) 20% or less water by volume of the composition is separated from the composition. Also disclosed are consumer products having such a stable microcapsule composition.

A process for producing particles of at least one polyhydroxyalkanoate (PHA), the particles having an average diameter (d50) greater than or equal to 0.1 μm and less than or equal to 100 μm, may include: providing an aqueous suspension of the at least one PHA; and subjecting the aqueous suspension of the at least one PHA to a process of atomization by spray drying. A process for producing particles of at least one PHA, the particles having an average diameter (d50) greater than or equal to 0.1 μm and less than or equal to 100 μm, may include: atomizing an aqueous suspension of the at least one PHA by spray drying the aqueous suspension.

A process for producing particles of at least one polyhydroxyalkanoate (PHA), the particles having an average diameter (d50) greater than or equal to 0.1 μm and less than or equal to 100 μm, may include: providing an aqueous suspension of the at least one PHA; and subjecting the aqueous suspension of the at least one PHA to a process of atomization by spray drying. A process for producing particles of at least one PHA, the particles having an average diameter (d50) greater than or equal to 0.1 μm and less than or equal to 100 μm, may include: atomizing an aqueous suspension of the at least one PHA by spray drying the aqueous suspension.

An improved delivery particle comprising a benefit agent core material and a shell encapsulating the core material is described, along with a process for forming such a delivery particle and articles of manufacture. The shell is the reaction product of: i) an isocyanate or acid chloride or acrylate with ii) an amine-containing natural material having free amino moieties, and iii) an a, β -unsaturated compound, the a, β -unsaturated compound forming C-N covalent bonds with the amine moieties of the natural material. The delivery particle of the invention has improved release characteristics, with enhanced degradation characteristics in OECD test method 301B.

A fragrance composition which reduces malodor during chemical treatment of keratin fibers is described. The keratin fibers may be human keratin fibers, such as human hair. The fragrance compound comprises p-mentha-8-thiol-3-one, cis-3-hexenol, cis-3-hexenyl acetate, and allyl amyl glycolate and further comprises one or more organic solvents selected from the group consisting of benzyl alcohol, dipropylene glycol, isopropyl myristate, and ethanol in an amount of 1% by weight or more, calculated to the total weight of the composition.

A fragrance composition which reduces malodor during chemical treatment of keratin fibers is described. The keratin fibers may be human keratin fibers, such as human hair. The fragrance compound comprises p-mentha-8-thiol-3-one, cis-3-hexenol, cis-3-hexenyl acetate, and allyl amyl glycolate and further comprises one or more organic solvents selected from the group consisting of benzyl alcohol, dipropylene glycol, isopropyl myristate, and ethanol in an amount of 1% by weight or more, calculated to the total weight of the composition.

Silica microcapsules, each of which includes a shell, and a core containing one or more organic compounds inside the shell, a softener composition containing the silica microcapsules, and a method of producing the silica microcapsules is described. In the silica microcapsules, the shell contains silica as a constituent component, and the organic compound contains a primary alcohol.

A fragrance composition is provided. The fragrance composition comprises one or more fragrance ingredients, at least one solubilizer, and acceptable carriers, and the composition is substantially free of ethanol. The composition is a perfume, perfume water, eau de toilette, eau de cologne, eau de parfum, fragrance mist, or air freshener. The composition may be personalized and may also provide a sensory experience.

A fragrance composition is provided. The fragrance composition comprises one or more fragrance ingredients, at least one solubilizer, and acceptable carriers, and the composition is substantially free of ethanol. The composition is a perfume, perfume water, eau de toilette, eau de cologne, eau de parfum, fragrance mist, or air freshener. The composition may be personalized and may also provide a sensory experience.

A method and a system for generating a fragrance (also referred to herein as perfume) are disclosed. A method may comprise providing a perfume blender machine (100) and cartridges (102) for storing liquid olfactory ingredients (112), the machine comprising dispensing means to dispense olfactory ingredients (112) from the cartridges (102) for generating a fragrance (114); controlling the dispensing means to generate a fragrance (114) based on instructions given by a user on the liquid olfactory ingredients (112) to be blended and the quantity of each; and generating a recipe with the information of the ingredients (112) and their respective quantities which have been used to generate the fragrance.