EPOXY RESIN-BASED CATHODIC DIP COATING (CDC) OF METAL COMPONENTS AS AN ADHESION PROMOTER FOR PU SYSTEMS

The present invention relates to a composite element, especially for a damping element, comprising a) at least one metallic body having a surface; b) a coating comprising an epoxy resin on at least part of the surface of the metallic body; c) a plastics body comprising at least one polyurethane, whi...

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Bibliographische Detailangaben
Hauptverfasser:	ESCH, Moritz, HORSTMANN, Andreas, MAIER, Maximilian
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES BLASTING CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES ENGINEERING ELEMENTS AND UNITS FILLING PASTES GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INKS LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES SHOCK-ABSORBERS SPRINGS THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL USE OF MATERIALS THEREFOR WEAPONS WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention relates to a composite element, especially for a damping element, comprising a) at least one metallic body having a surface; b) a coating comprising an epoxy resin on at least part of the surface of the metallic body; c) a plastics body comprising at least one polyurethane, which at least partly surrounds the metallic body of (a) and in the region of the surround is at least partly in direct contact with the coating of (b), wherein the composite element between the surface of the metallic body (a) and the coating (b) has a conversion layer (d) which comprises at least one compound selected from the group of zirconium(IV) oxide, zinc(II) phosphate, and chromate. The invention further relates to a damping element comprising the composite element and at least one further body which is at least partly in direct contact with the composite element, preferably with the plastics body of (c). The invention additionally relates to production processes for composite element and damping element, to the composite and damping elements, respectively, that are produced or producible by these processes, and the use of these composite and damping elements, respectively.