Basf Se Corporation

Michael Dornbusch

Konrad Roschmann

Monica Fernandez Gonzalez

Guido Vandermeulen

Markus Hickl

Gunnar Schornick

Helmut B Witteler

Thomas Heidenfelder

Frank Klippel

Hermann Bergmann

Alexander Göthlich

Alexander Goethlich

Method of applying corrosion control coats, especially integrated pretreatment layers or coats for atmospheric corrosion control, to metallic surfaces, using copolymers comprising as monomeric building blocks 20% to 70% by weight of monomers containing nitrogen heterocycles, 10% to 50% by weight of monomers containing acidic groups, 10% to 50% by weight of vinylaromatic monomers, and optionally 0% to 25% by weight of further monomers. Copolymers of the stated composition, and also preparations for applying corrosion control coats.

Method for the application of corrosion-resistant layers to metallic surfaces

The present invention relates to a composition for coating metallic surfaces, comprising a binder component; a corrosion inhibitor polymer based on an ethylenically monocarboxylic and dicarboxylic acid and, if appropriate, further ethylenical monomers, a solvent component, and, if appropriate, crosslinkable components, and also pigment/filler components. The invention further relates to processes for its preparation and also to methods of coating a metallic surface using the composition, to coated metallic surfaces thus obtained, and to the use of the composition as a primer, particularly in coil coating or in atmospheric corrosion control. After drying, the applied layer preferably has a thickness of at least 3.1 &#x3bc;m and is therefore thicker than a typical pretreatment layer.

Polymer composition for corrosion protection

Growing community of inventors

Muenster, Germany

Michael Dornbusch