Regensburg 2004 – wissenschaftliches Programm

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SYNP: Functional Nanoparticles

SYNP 2: Functional Nanoparticles - II

SYNP 2.4: Hauptvortrag

Dienstag, 9. März 2004, 12:50–13:10, H1

Nanomaterials in Industrial Applications — •Ralf Anselmann, V. Hilarius, G. Pfaff, M. Kursawe, and H. Winkler — Merck KGaA, D-64271 Darmstadt, Germany

The lecture gives an overview on materials with nanostructures in at least one dimension. It describes the results of many years of research done in the Chemicals divisions of Merck. Most of the materials are commercially very successful products. Included are examples of materials such as:

1. Platelets: Uncoated mica platelets as fillers for cosmetics to improve the skin feeling of formulations. Mica platelets, which are coated with metal oxides (pearlescent pigments), where the interaction of the metal oxide layers with light yields interference colours. Multilayer coatings of metal oxides on mica with tunable optical and electrical characteristics. Silica and alumina flakes coated with metal oxides for special optical effects.

2. Silica spheres: Uncoated as fillers for cosmetics to influence skin feeling and viscosity of formulations. Coated with inorganic nano materials to impart colour and good skin feel or hide wrinkles by controlled light scattering. Monodisperse silica spheres.

3. Ordered structures made from spheres, photonic materials.