Th. Goldschmidt Ag

Basf Coatings Gmbh

Evonik Goldschmidt Corporation

Hans-Leo Karminski

Stefan Silber

Eberhard Esselborn

Matthijs Groenewolt

Michael Keup

Günther Michael

Roland Sucker

Jan-Bernd Kues

Arno Knebelkamp

Pedro Cavaleiro

Otto Klocker

Wernfried Heilen

Christian Psiorz

Ellen Wallhorn

Petra Brandt

Stefanie Schroeder

Roland Spiegler

Annekathrin Hansen

Angela Classen

Disclosed is a coating composition for coating polycarbonate substrates. The coating composition comprises (A) at least one radiation-curing binder, (B) nanoparticles, and (C) optionally at least one reactive diluent and/or optionally a solvent, and wherein the nanoparticles (B) comprise silicon dioxide nanoparticles , the silicon dioxide nanoparticles have a dof between 80 and 300 nm, and the silicon dioxide nanoparticles have a particle size distribution wherein less than 15% by weight of the particles have a size in the range of less than 80 nm, 75% to 95% by weight of the particles have a size in the range from 80 to 300 nm, 0% to 5% by weight of the particles have a size in the range from more than 300 to 1000 nm, and 0% to 5% by weight of the particles have a size in the range from more than 1000 nm to 10 000 nm.

High-transparency polycarbonates with scratch-resistant coating, process for production thereof and use thereof

The invention relates to block-polymethacrylate-block-polyalkylene oxide copolymers with terminal carboxylic acids, of the general formula I

Dispersants for preparing aqueous pigment pastes

Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymers having the general formula: ##STR1## as well as compounds for the defoaming of aqueous dispersion paints that are disclosed contain the copolymers as effective defoaming components.

Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymers and

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Essen, Germany

Hans-Leo Karminski