AQUEOUS FLOOR COAT BASED ON A UV-CURABLE POLYURETHANE

PROBLEM TO BE SOLVED: To provide a photocurable aqueous urethane acrylate-containing emulsion coating material for coating wooden substrates.SOLUTION: The provided aqueous coat composition comprises, with respect to 100 parts.wt. of (A) a polyurethane dispersion obtained from a) 25-89.8 wt.% of an a...

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Bibliographische Detailangaben
Hauptverfasser:	MICHAEL A DVORCHAK, LOCKHART AARON A, WADE ROBERT A, BRIDGES CLIFFORD M
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To provide a photocurable aqueous urethane acrylate-containing emulsion coating material for coating wooden substrates.SOLUTION: The provided aqueous coat composition comprises, with respect to 100 parts.wt. of (A) a polyurethane dispersion obtained from a) 25-89.8 wt.% of an acrylate polymer having a hydroxyl value of 40-240, b) 0.1-20 wt.% of a compound serving a dispersing function and possessing one or two functional groups reactive with isocyanates, c) 10-50 wt.% of a polyisocyanate, d) 0-30 wt.% of a polyol neither reactive nor serving a dispersing function and having a number-average molecular weight of 5000 or below, and e) a polyamine having a number-average molecular weight of 31-1000, 0.1-10 parts.wt. of (B) a photopolymerization initiator and (C) water or a mixture of water and a solvent at a content of 20-60 wt.% with respect to the solid content of (A).