METHOD FOR FORMING MULTILAYER COATED FILM

A method for forming a multilayer coated film includes step (1) of: applying an aqueous intermediate coating composition (A), step (2) of applying an aqueous base coating composition (B), step (3) ofapplying a clear coating composition (C), and step (4) of heat-curing the coated films. The coating c...

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Bibliographische Detailangaben
Hauptverfasser:	KEIJI AMBO, KAZUKI MATSUBARA, TAKAYUKI ONO, HIRONORI TONOMURA, YOSHINARI MATSUURA, HIROSHI MITSUISHI, MASAKO HASE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES 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 CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 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 SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A method for forming a multilayer coated film includes step (1) of: applying an aqueous intermediate coating composition (A), step (2) of applying an aqueous base coating composition (B), step (3) ofapplying a clear coating composition (C), and step (4) of heat-curing the coated films. The coating composition (A) contains a specific hydroxyl group-containing acrylic resin (a1), a specific polyurethane resin (a2), a specific hydroxyl group-containing polyester resin (a3), a melamine resin (a4), and an active methylene-blocked polyisocyanate compound (a5). A ratio of the resin (a1) to the resin(a2) falls within a specific range. The heat-cured coated film of the coating composition (A) has a specific elongation at break, Young's modulus and Tukon hardness. The coating composition (C) contains a hydroxyl group-containing acrylic resin (c1) and an allophanate group-containing polyisocyanate compound (c2). 一种形成多层涂膜的方法包括步骤(1)施加水性中涂组合物(A)、步骤(2)施加水性底色漆涂料组合物(B)、步骤(3)施加清漆涂料组合物(C)，和步骤(4)热固化这些涂膜。涂料组合物(A)含有特定含羟基的丙烯酸系树脂(a1