BINDER COMPOSITION FOR COATING METALLIC AND MINERAL SUBSTRATES AND ITS USE

PROBLEM TO BE SOLVED: To obtain a solvent-free low-viscosity composition which can give a coating film having excellent resistances to corrosion, erosion and mechanical damage to a metallic or mineral substrate by mixing an organic polyisocyanate component with a specified polyhydroxy component in a...

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Bibliographische Detailangaben
Hauptverfasser:	HOVESTADT WIELAND DR, MELCHIORS MARTIN DR, RUTTMANN GERHARD, SCHWINDT JUERGEN DR, PROBST JOACHIM DR, PEDAIN JOSEF DR
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 obtain a solvent-free low-viscosity composition which can give a coating film having excellent resistances to corrosion, erosion and mechanical damage to a metallic or mineral substrate by mixing an organic polyisocyanate component with a specified polyhydroxy component in a specified ratio. SOLUTION: This composition is prepared by mixing at least one organic polyisocyanate component (e.g. lacquer polyisocyanate having a biured group derived from 1,6-diisocyanatohexane) with a solvent-free polyhydroxy component containing an OH-functional polyacrylate component obtained by polymerizing an olefinically unsaturated monomer mixture at least one of the components of which is OH-functional (e.g. a mixture of 2-hydroxyethyl acrylate with styrene, etc.) in the presence of a compound having an ether group and at least one OH group (e.g. propylene-oxide-based polyether) and having an OH content of 3.0-18.0wt.% and a viscosity of 200-10,000mPa.s in a specified NCO to OH equivalent ratio.