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Corrosion resistant fasteners and similar articles are compositely coated in which an epoxy base coating is applied on an inner metallic core and a top coating is applied on the epoxy coating. The epoxy base coat is preferably applied on the metallic core by cathodic electrodeposition. The compositi...

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Bibliographische Detailangaben
Hauptverfasser:	SCHUBERT, WALTER A., ELGIN, ILL., US, PARKER, ERIC G., ELGIN, ILL., US, PAGE, STEPHEN K., ELGIN, ILL., US
Format:	Patent
Sprache:	ger
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BLASTING CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING DYES ENGINEERING ELEMENTS AND UNITS FILLING PASTES GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INKS LIGHTING MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS 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 THERMAL INSULATION IN GENERAL TRANSPORTING USE OF MATERIALS THEREFOR WEAPONS WOODSTAINS
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Beschreibung
Zusammenfassung:	Corrosion resistant fasteners and similar articles are compositely coated in which an epoxy base coating is applied on an inner metallic core and a top coating is applied on the epoxy coating. The epoxy base coat is preferably applied on the metallic core by cathodic electrodeposition. The composition of the top coating can comprise sulfonates such as petroleum sulfonates and sulfurized hydrocarbon fatty acid and ester. Hydrocarbon fatty acid ester in the top coat can be derived from polymer of ethylene or propylene or natural oil. Particularly preferred top coat formulations additionally include a salt of sulfamic acid or a derivative and/or salts of barium such as barium carbonate and barium sulfate. The composite coatings provide improvement in corrosion resistance of the fasteners.