Buhler Partec Gmbh

Schoeller Textil Ag

Frank Tabellion

Helmut Schmidt

Steffen Pilotek

Kai Gossmann

Jens Adam

Karl-Peter Schmitt

Klaus Steingröver

A method for producing a functional colloid during which particles are reactively fragmented in a mechanical manner in a dispersant in the presence of a modifying agent so that the modifying agent is chemically bound, at least in part, to the fragmented colloid particles.

Chemomechanical production of functional colloids

Cationically stablished aqueous silica dispersion, method for its production and its use. A method is described for the production of cationically stabilised silica in which silica is cationically stabilised in the form of an aqueous dispersion or a powder by mixing with an acid aminosilane solution. A cationically stabilised silica powder may be obtained by removing the solvent. The cationically stabilised silica dispersion obtained is highly storage stable. Mixing with organic binding agents such as PVA is possible without a significant increase in viscosity. The dispersions are particularly suitable for coating slips for printing media, such as inkjet paper, but also for the surface treatment of substrates, e.g. for the hard coating of plastics, or in parting compounds or abrasives and polishing agents.

Cationically stabilized aqueous silica dispersion, method for its production and its use

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Saarbrücken, Germany

Frank Tabellion