Process for the production of cellular polyurethane elastomer mouldings having a predominantly closed cell structure

The invention describes a process for the production of cellular polyurethane elastomer mouldings having a predominantly closed cell structure by reacting NCO group-containing prepolymers having an NCO content of from 1.5 to 8, preferably prepared from organic polyiso cyanates and essentially linear...

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Bibliographische Detailangaben
Hauptverfasser:	STUTZ,HERBERT,DR, SCHOLZ,WOFGANG, ZIPP,OTMAR,DR
Format:	Patent
Sprache:	eng ; ger
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:	The invention describes a process for the production of cellular polyurethane elastomer mouldings having a predominantly closed cell structure by reacting NCO group-containing prepolymers having an NCO content of from 1.5 to 8, preferably prepared from organic polyiso cyanates and essentially linear, high-molecular-weight polyols in an NCO:OH ratio of from 1.3 to 2.5 and containing less than 3% by weight of free monomeric polyisocyanates, based on the total weight, with water, optionally in the presence of auxiliaries and/or additives, in closed moulds.