FLUESSIGE HELLE POLYISOCYANATGEMISCHE, EIN VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG BEI DER HERSTELLUNG VON HELLEN, HARTEN POLYURETHAN-SCHAUMSTOFFEN

The invention relates to novel, pale, urethane-modified polyisocyanates or polyisocyanate mixtures from the diphenylmethane series, to a process for their preparation by reacting highly bicyclic polyisocyanates or polyisocyanate mixtures from the diphenylmethane series with highly functional polyeth...

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Bibliographische Detailangaben
Hauptverfasser:	WIEDERMANN, ROLF. DR., 5068 ODENTHAL, DE, GUPTA, PRAMOD. DR., 5012 BEDBURG, DE, HOPPE, ERNST-MARTIN. DR., 5090 LEVERKUSEN, DE, GEBAUER, HERBERT. DR., 4150 KREFELD, DE
Format:	Patent
Sprache:	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 relates to novel, pale, urethane-modified polyisocyanates or polyisocyanate mixtures from the diphenylmethane series, to a process for their preparation by reacting highly bicyclic polyisocyanates or polyisocyanate mixtures from the diphenylmethane series with highly functional polyether-polyols and optionally subsequently blending these modified products with polyisocyanates or polyisocyanate mixtures of the diphenylmethane series, and the use of the modified polyisocyanate mixtures in the production of pale, tough and rigid polyurethane foams.