SUBSTRATE TREATING AGENT FOR PRECOATED METAL SHEET, COATED SUBSTRATE-TREATED METAL SHEET COATED WITH THE SAME, AND PRECOATED METAL SHEET PRODUCED BY USING THE COATED SUBSTRATE-TREATED METAL SHEET

PROBLEM TO BE SOLVED: To provide: a new substrate treating agent suitably used for various types of precoated metal sheets; a coated substrate-treated metal sheet processed by coating the substrate treating agent ; and a precoated metal sheet produced using the coated substrate-treated metal sheet.S...

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Bibliographische Detailangaben
Hauptverfasser:	FUDA MASAHIRO, MORISHITA ATSUSHI, MIZUNO KENSUKE, HAYASHI KIMITAKA, UENO KEIICHI, FURUKAWA HIROYASU, TENMAYA MOTOHIRO
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 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 LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY PERFORMING OPERATIONS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide: a new substrate treating agent suitably used for various types of precoated metal sheets; a coated substrate-treated metal sheet processed by coating the substrate treating agent ; and a precoated metal sheet produced using the coated substrate-treated metal sheet.SOLUTION: The substrate treating agent for a precoated metal sheet includes, in water as solid contents, tannin or tannic acid, a silane coupling agent, and fine silica as well as a polyester resin including a sulfonic acid group or a sulfonate group as a substituent, and has a pH as a treating agent of 2.0-6.5. The substrate treating agent for a precoated metal sheet may include a phosphate compound in order to further improve the corrosion resistance of the precoated metal sheet.