Basf Se Corporation

Igm Group B.v.

Thomas Giesenberg

Gabriele Baisch

Tunja Jung

Reinhold Öhrlein

Andreas Mühlebach

Margherita Fontana

Didier Bauer

Martin Müller

François Rime

Laurent Michau

Valentina K Mitina

Michael Chin

Keqing Fa

The present invention discloses functionalized nanoparticles comprising on the surface a covalently bound radical of the formula (I) wherein the nanoparticles are SiO, AlOor mixed SiOand AlOnanoparticles, and wherein the general symbols are as defined in claim. These functionalized nanoparticles are for example useful as stabilizers and/or compatibilizers in organic materials, or as photoinitiators in pre-polymeric or pre-crosslinking formulations, or as reinforcer of coatings and improver of scratch resistance in coating compositions for surfaces. 

Functionalized nanoparticles

A method is provided for preparing on the surface of a substrate a superhydrophilic layer containing at least one metal oxide which method comprises calcining at elevated temperatures a cross-linked precursor film in which film the metal oxide is evenly distributed and immobilized. The precursor film is prepared by sequentially applying to the surface of the substrate a polyamine or other cationic polymer, a suspension of metal oxide and then a suitable cross linking agent. The superhydrophilic layer can be applied as a coating to a variety of substrates including metal, glass and ceramic and provides excellent dirt resistance, scratch resistance and antifogging effect. Multi-layer systems are also available using the inventive process.

Superhydrophilic coating compositions and their preparation

The present invention discloses the use of functionalized particles as electrophoretic displaying particles, wherein the functionalized particles are SiO, AlOor mixed SiOand AlOparticles comprising, covalently bound to an oxygen atom on the surface, a radical of formula (1), wherein Rand Rare independently of each other hydrogen, particle surface-O&#x2014;, or a substituent, n is 1, 2, 3, 4, 5, 6, 7 or 8, B is the direct bond or a bridge member, and D is the residue of an organic chromophore. 

Coloured particles for electrophoretic displays

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Oberwil, Switzerland

Thomas Giesenberg