One-component coating free from catalysts and its application by the manufacture of acid-resistant lacquers

A catalyst-free, one-component coating composition containing A) one or more compounds which act as crosslinking agents and contain on average at least two CH-acidic hydrogen atoms, B) one or more Michael addition-suitable (meth)acrylate copolymers, polyester and/or polyurethane resins containing al...

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Bibliographische Detailangaben
Hauptverfasser:	HERRMANN, FRIEDRICH, KONZMANN, HEINZ, DIENER, WOLFGANG
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES 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 POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A catalyst-free, one-component coating composition containing A) one or more compounds which act as crosslinking agents and contain on average at least two CH-acidic hydrogen atoms, B) one or more Michael addition-suitable (meth)acrylate copolymers, polyester and/or polyurethane resins containing alpha , beta -unsaturated groups bonded via carbonyl, carboxyl and/or carboxamide groups, and having a C=C equivalent weight of 85-1800 and a weight average molecular weight of 170-50000. The equivalent ratio of A:B is from 2:1 to 1:2. The coating composition contains solvents and additives which are customary in paints, and optionally water, pigments and/or fillers. It gives particularly acid-resistant coatings and is particularly suitable for the production of top coats and clear coats in the automotive sector.