LIGHT-RESISTANT SOLVENTLESS POLYURETHANE COATING MATERIAL AND ITS USE IN FORMING COATING FILM

A solvent-free, two component polyurethane coating composition contains: (a) a polyisocyanate component, (b) a polyol component, and opt. (c) known additives. The composition has an NCO/OH ratio of 0.7:1 to 1.5:1. The polyisocyanate has a viscosity of 500-12,000 M Pas at 23 degrees C, an isocyanate...

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Bibliographische Detailangaben
Hauptverfasser:	HANSUUYOOZEFU RAASU, KAARUUHAINTSU HENTSUHIERU, RUTSUTSU SHIYUMAARUSUTEIIKU, HARARUTO MERUTESU, URURITSUHI BUARUTAA, RAINHARUTO HARUPAAPU, GERUHARUTO RUTSUTOMAN, RAINAA RETSUTEIHI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BUILDING CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES FIXED CONSTRUCTIONS GUTTERS INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE 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 ROOF COVERINGS ROOF-WORKING TOOLS SKY-LIGHTS SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A solvent-free, two component polyurethane coating composition contains: (a) a polyisocyanate component, (b) a polyol component, and opt. (c) known additives. The composition has an NCO/OH ratio of 0.7:1 to 1.5:1. The polyisocyanate has a viscosity of 500-12,000 M Pas at 23 degrees C, an isocyanate group content of 13-24 wt.% and a content of monogenic diisocyanates of less than 0.5 wt.%. It is a mixture of: (i) 50-95 wt.% of a polyisocyanate derived from 1,6 hexane diisocyanate with a viscosity of 100-4,000 mPa.s at 23 degrees C and an isocyanate content of 16-24 wt.%; and (ii) 5-50 wt.% of an isocyanate group containing polyisocyanate derived from a cycloaliphatic diisocyanate. Also claimed are: (A) the use of the composition for the coating of a substrate; and (B) the use of the composition for coating terraces or roofs.