Symrise Ag

Jürgen Siewert

Gerhard Schmaus

Sabine Lange

Oliver Lenz

Christian Wolter

Ravikumar Pillai

Michael Michler

Burghard Wilkening

Jörg Niekerken

Yonahha Sander

Gorsten Stephan

Torsten Stephan

Sven Winkler

Jörk Niekerken

Suggested is a cosmetic or pharmaceutical or detergent composition comprising 1,2 pentanediol, wherein said 1,2-pentanediol is obtained from a process comprising the following steps: (a) providing at least one starting material selected from furfuryl alcohol and furfural; (b) reacting at least one of said starting materials with hydrogen in the presence of a heterogeneous catalyst to form 1,2-pentanediol, wherein said heterogeneous catalyst comprises: one or more metals selected from the group consisting of platinum, rhodium, ruthenium, nickel, palladium and iridium in metallic form and/or one or more compounds of metals selected from the group consisting of platinum, rhodium, ruthenium, nickel, palladium and iridium; and one or more support materials selected from the group consisting of activated carbon, aluminum oxide, silicon dioxide, and silicon carbide; and (c) removing the 1,2-pentanediol thus obtained from the reaction mixture.

Compositions comprising odorless 1,2-pentanediol

Suggested is a process for the production of solid cooling agents, wherein a pre-scraped melt, i.e., a melt of menthol compounds with added seed crystals is applied to a pre-cooled area by even deposition of drops.

Process for the production of solid cooling agents

A method for converting farnesol to nerolidol in the presence of alpha-bisabolol including providing or preparing a mixture of alpha-bisabolol, farnesol, and one or more catalysts for selective isomerization of farnesol to nerolidol in the presence of alpha-bisabolol, and converting at least a portion of the farnesol to nerolidol.

Method for converting farnesol to nerolidol in the presence of alpha-bisabolol

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Rollshausen, Germany

Jürgen Siewert