SUSPENSION FOR IMPROVING THE CORROSION INHIBITION OF STEEL, METHOD FOR PROTECTING STEEL FROM CORROSION AND USES OF THE SUSPENSION

The present invention provides a suspension and method for improving the corrosion protection of substrates which comprise or consist of steel. It has been discovered that if an organic derivative of a bentonite clay and a modified urea are added to a dispersion of flakes of Zn, Al and/or Mg, or all...

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Bibliographische Detailangaben
Hauptverfasser:	NITZSCHE THOMAS, HILL ALAIN
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention provides a suspension and method for improving the corrosion protection of substrates which comprise or consist of steel. It has been discovered that if an organic derivative of a bentonite clay and a modified urea are added to a dispersion of flakes of Zn, Al and/or Mg, or alloys thereof, the resulting suspension demonstrates a rheological profile which is ideally suited for coating steel substrates. In fact, the inventive suspension enables coating with a high consistency of performance. The performance of the suspension is already reached after one coating process i.e. even after a dip/spin coating process is conducted only one once. In conclusion, steel substrates can be provided with a high-quality corrosion resistant coating in a more economical way compared to the prior art.