METHOD FOR FORMING MULTILAYER COATING FILM

The objective of the invention is to keep the softness of a coating film in a film making process and obtain a smooth coating film even if on a base material with thermal expansion/contractibility. The invention provides a method for forming a multilayer coating film, which is a method for form a mu...

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Bibliographische Detailangaben
Hauptverfasser:	KAWABATA TAKAYUKI, YAMAZAKI AKIRA, NARITA YOSHINORI, HASE MASAKO, AMBO KEIJI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES APPARATUS THEREFOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The objective of the invention is to keep the softness of a coating film in a film making process and obtain a smooth coating film even if on a base material with thermal expansion/contractibility. The invention provides a method for forming a multilayer coating film, which is a method for form a multilayer coating film on an automobile vehicle body. The method comprises following steps of coatingwaterborne intermediate coating compositions, preheating coated intermediate coating compositions under 60-90 DEG C for 3-10 minutes so as to form un-solidified intermediate coating films, forming preheated un-solidified substrate coating films and un-solidified transparent coating films and baking and solidifying the un-solidified coating films so as to form a multilayer coating film. The intermediate coating compositions comprise coating film forming resin. The coating film forming resin comprises (a) acrylic resin emulsion with regulated physical property, and film making auxiliaries including fatty acid diester c