Method for forming multi-layer metallic coating film

PCT No. PCT/JP97/01885 Sec. 371 Date Feb. 6, 1998 Sec. 102(e) Date Feb. 6, 1998 PCT Filed Jun. 3, 1997 PCT Pub. No. WO97/47396 PCT Pub. Date Dec. 18, 1997A method for forming a multi-layer metallic coating film, the method being a 3-coat system comprising the steps of applying the following coating...

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Hauptverfasser:	KASARI, AKIRA, ENDO, MITSUGU, YOKOYAMA, TETSUYA, ODA, HIROAKI, SHIMAKAWA, MIKIO
Format:	Patent
Sprache:	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 CORRECTING FLUIDS DYES ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS 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 TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Zusammenfassung:	PCT No. PCT/JP97/01885 Sec. 371 Date Feb. 6, 1998 Sec. 102(e) Date Feb. 6, 1998 PCT Filed Jun. 3, 1997 PCT Pub. No. WO97/47396 PCT Pub. Date Dec. 18, 1997A method for forming a multi-layer metallic coating film, the method being a 3-coat system comprising the steps of applying the following coating compositions (A), (B) and (C) in this order to a metal substrate coated with a cationically electrodepositable coating composition; (A) an organic solvent-based thermosetting metallic first base coating composition which comprises a neutralized carboxyl-containing resin having an acid value of 5 to 100 mg KOH/g, an amino resin and a metallic pigment, the composition having a substrate-hiding power corresponding to up to 3% transmittance of light at a wavelength of 400 to 700 nm in a 15 mu m-thick cured coating film, (B) an aqueous thermosetting second base coating composition which has a transparency corresponding to 10 to 95% transmittance of light at a wavelength of 400 to 700 nm in a 15- mu m thick cured coating film, and (C) an organic solvent-based thermosetting clear coating composition. The method of the invention gives a multi-layer metallic coating film on a metal substrate, the film being improved in esthetic property, surface smoothness and so on.