Process for preparing a moulded polyurethane material

Process for preparing a moulded elastomeric polyurethane material having an overall density of 200-1000 kg/M3, preferably of 200-500 kg/M3, and a compression load at 40% deflection of at least 25 kPa by reacting in a closed mould an isocyanate terminated prepolymer, having an NCO-value of 5-15% by w...

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Bibliographische Detailangaben
Hauptverfasser:	INDESTEEGE JOHAN, BLEYS GERHARD J
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	Process for preparing a moulded elastomeric polyurethane material having an overall density of 200-1000 kg/M3, preferably of 200-500 kg/M3, and a compression load at 40% deflection of at least 25 kPa by reacting in a closed mould an isocyanate terminated prepolymer, having an NCO-value of 5-15% by weight and which is the reaction product of a polyisocyanate and a polyether polyol having an average nominal functionality of 2-6, an average equivalent weight of 500-5000 and an oxyethylene content of 50-90% by weight, and water. The elastomer obtained is claimed as well.