Symrise Ag

Joern Wiedemann

Ralf Bertram

Benjamin Rost

Jennifer Rube

Julian Alexander Georgi

André Haetzelt

Britta Raabe

Joerg Droege

Dirk Mueller

Astrid Kaufhold

The present invention relates to a process for the production of multilayer microcapsules, in particular multilayer odiferous substance capsules or fragrance compound capsules, which have improved stability and odiferous substance release or fragrance compound release compared to prior art capsules. In addition, the present invention relates to multilayer microcapsules comprising at least one hydrophobic odiferous substance or fragrance compound obtainable by the process of the invention. In another aspect, the invention described herein relates to multilayer microcapsules comprising a core comprising at least one hydrophobic odiferous substance or fragrance compound, and a capsule shell. In addition, the present invention relates to the use of the multilayer microcapsules and suspensions of the multilayer microcapsules as an ingredient in detergents, fabric softeners, cleaning products, scent boosters in liquid or solid form, cosmetics, personal care products, agricultural products or pharmaceutical products.

Encapsulated fragrance compounds based on natural amino acids

A two-phase system containing at least one solvatochromic dye, water, at least one fragrance, and at least one solvent. Wherein the two-phase system includes liquid phases layered one on top of the other. The inventive compositions can be used as exhaustion indicators for fragrance release systems.

Two-phase exhaustion indicator for fragrance release systems

The invention relates to stabilization systems for capsules in washing and cleaning compositions, wherein the capsules contain active ingredients or other ingredients and have an average particle size distribution from 0.1 nm to 1000 &#x3bc;m.

Stabilization of capsule systems in laundry detergents and other cleaning products with one or more rheology modifiers

An ethanol-free perfume oil microemulsion is described, comprising or consisting of (a) water, (b) one or a plurality of vicinal diol(s), (c) one, two or three solvent(s) for reducing stickiness, selected from the group consisting of glycerol, isobutyric acid-1-hydroxy-2,2,4-trimethyl-3-pentyl ester and isobutyric acid-3-hydroxy-2,2,4-trimethyl-1-pentyl ester, and (d) one or a plurality of odor essence(s) and (e) optionally one or a plurality of further substances. Furthermore, uses and methods for reducing the stickiness of ethanol-free perfume oil microemulsions and articles comprising perfume oil microemulsions according to the invention are described.

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Holzminden, Germany

Joern Wiedemann