PRETREATMENT OF MAGNESIUM SUBSTRATES

A method and composition for pretreating magnesium substrates prior to the application of a protective and/or decorative surface coating is disclosed. The pretreatment composition comprises (a) a compound containing at least 4 phosphorus acid groups and (b) a soluble alkaline earth salt.

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Bibliographische Detailangaben
Hauptverfasser:	OKERBERG, Brian C, SILVERNAIL, Nathan J, KOLCUN, Adam, LINGENFELTER, Thor G, DEAN, Roy E
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A method and composition for pretreating magnesium substrates prior to the application of a protective and/or decorative surface coating is disclosed. The pretreatment composition comprises (a) a compound containing at least 4 phosphorus acid groups and (b) a soluble alkaline earth salt.