WAESSRIGE BESCHICHTUNGSZUSAMMENSETZUNG UND IHRE VERWENDUNG IN EINEM BESCHICHTUNGSVERFAHREN

Disclosed are (1) an aqueous coating composition which is characterized in that the composition comprises: (A) an acrylic resin-type emulsion, (B) a urethane resin-type emulsion and (C) a crosslinking agent the component (B) being a self-emulsifiable urethane emulsion prepard by subjecting a urethan...

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Bibliographische Detailangaben
Hauptverfasser:	ASADA, AKIRA, NARA, NARA, JP, KAWACHI, YOUJI, OMIHACHIMAN, SHIGA, JP, MITSUJI, MASARU, ZAMA, KANAGAWA, JP, ENDO, MISTUGU, KANAGAWA, JP
Format:	Patent
Sprache:	ger
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 COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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:	Disclosed are (1) an aqueous coating composition which is characterized in that the composition comprises: (A) an acrylic resin-type emulsion, (B) a urethane resin-type emulsion and (C) a crosslinking agent the component (B) being a self-emulsifiable urethane emulsion prepard by subjecting a urethane prepolymer to reaction for chain extension by water and to emulsification after or during neutralization of the urethane prepolymer with a tertiary amine, the urethane prepolymer consisting essentially of (i) an aliphatic and/or alicyclic diisocyanate, (ii) a polyether diol and/or polyester diol both having a number-average molecular weight of about 500 to about 5000, (iii) a low-molecular weight polyhydroxyl compound and (iv) a dimethylolalkanoic acid in an NCO/OH ratio by equivalent of 1.1-1.9/1; and (2) a two-coat one-bake coating method characterized by use of said aqueous coating composition as the base-coat composition.