Momentive Performance Materials Gmbh

Dwi—leibniz-Institut Fur Interaktive Materialien E.v.

Deutsches Wollforschungsinstitut an Der Rwth Aachen E.v.

Xiaomin Zhu

Martin Möller

Roland Wagner

Karl-Heinz Stachulla

Anne Dussaud

Helmut Keul

Katharina Streicher

Armin Alteheld

Christian Wenske

Kunshan Sun

Martin Moeller

Barbara Dittrich

Susanne Spiegelberg

Karin Peter

Andrea Koerner

Yongliang Zhao

Robin Heedfeld

Crisan Popescu

Mériem Er-Rafik

The present invention relates to a method for enclosing either hydrophobic or hydrophilic substances in silica-based micro- and nanocapsules via emulsion techniques. More specifically, it relates to a method for the preparation of 0.01-100 &#x3bc;m, particularly 0.01-10 &#x3bc;m, silica-based microcapsules containing up to 99% (w/w) payload using a silica precursor polymer, polyalkoxysiloxane (PAOS), preferentially polyalkylalkoxysiloxane (R-PAOS), which acts not only as a silica source but also an emulsifier. In order to obtain mechanically stable capsules, the conversion of PAOS or R-PAOS is accompanied with the solidification of the organic phase. For the encapsulation of hydrophobic substances, oil-in-water emulsions are formed. The formation of water-in-oil-in-water double emulsions is required to encapsulate hydrophilic compounds.

Method for the encapsulation of substances in silica-based capsules and the products obtained thereof

Organofunctional polyorganosiloxanes, their use in cosmetic compositions, method for treating amino acid based substrates with organofunctional polyorganosiloxanes, compositions comprising the organofunctional polyorganosiloxanes useful for hair straightening and shaping as well as hair coloration and hair color retention.

Silicone compounds and compositions thereof for the treatment of amino acid based substrates

The present invention relates to a process for the preparation of composites from thermoplastic polymers and (semi)metal oxides, in particular silicon dioxide, wherein at least a part of the (semi)metal oxides is dispersed in the polymers in nanodispersed manner (nanocomposites). The invention relates to the composites obtainable by this process and their processing to give molded articles.

Method for producing composite materials

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Aachen, Germany

Xiaomin Zhu