METHOD FOR FORMING MULTILAYER COATING FILM

To improve the appearance, chipping resistance, adhesive properties and low temperature impact properties of a coating film. The method for forming a multilayer coating film of the present invention comprises coating an aqueous primer coating composition, an aqueous first colored coating composition...

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Bibliographische Detailangaben
Hauptverfasser:	SHINMURA KAZUHIKO, MASUO KONDO, KOJIMA KEISUKE, TSUNODA TAKESHI, KURASHINA TORU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES GENERAL PROCESSES OF COMPOUNDING INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS WORKING-UP
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Beschreibung
Zusammenfassung:	To improve the appearance, chipping resistance, adhesive properties and low temperature impact properties of a coating film. The method for forming a multilayer coating film of the present invention comprises coating an aqueous primer coating composition, an aqueous first colored coating composition, an aqueous second colored coating composition and a clear coating composition in that order. The aqueous primer coating composition contains a component (A) which contains a polyolefin resin having a melting point of 60DC to 100DC and a weight average molecular weight of 50,000-250,000, a component (B) which contains a polyurethane resin having a glass transition temperature of -100DC to -70DC and an elongation percentage of 500% or more, a curing agent (C) and electrically conductive carbon (D). The aqueous first colored coating composition and aqueous second colored coating composition each contain a core/shell emulsion. The clear coating composition contains a hydroxyl group-containingacrylic resin containing