PROCESS FOR THE PRE-TREATING OF METAL SHEETS WHICH ARE PROVIDED WITH A COATING FOLLOWING A FORMING OPERATION

This invention relates to an improved process for the pretreating of metallic materials wherein the metallic material is surface-treated, covered with a removable layer comprising a water soluble, film-forming organic polymer and at least one water soluble polymer with a molecular weight of up to su...

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Bibliographische Detailangaben
Hauptverfasser:	HANS HOFFMANN, NIKOLAUS SCHON, LAMBIS LEONTARITIS
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:	This invention relates to an improved process for the pretreating of metallic materials wherein the metallic material is surface-treated, covered with a removable layer comprising a water soluble, film-forming organic polymer and at least one water soluble polymer with a molecular weight of up to substantially 2,000, subsequently formed and provided with a firmly adhering protective layer.