VERFAHREN ZUR HERSTELLUNG VON POLYURETHANWEICHSCHAUMSTOFFEN MIT NIEDRIGER DICHTE

VERFAHREN ZUR HERSTELLUNG VON POLYURETHANWEICHSCHAUMSTOFFEN MIT NIEDRIGER DICHTE

Low density flexible molded and slabstock foams are prepared by reacting a polyisocyanate with a polyol composition containing a polyether mono-alcohol. The blowing of the foam is essentially with carbon dioxide generated from the reaction of water with isocyanate, and the reaction catalysts used in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GANSOW, MICHAEL A.P, LEHMANN, CHRISTIAN M
Format: Patent
Sprache:eng ; ger
Schlagworte:
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Beschreibung
Zusammenfassung:Low density flexible molded and slabstock foams are prepared by reacting a polyisocyanate with a polyol composition containing a polyether mono-alcohol. The blowing of the foam is essentially with carbon dioxide generated from the reaction of water with isocyanate, and the reaction catalysts used in the preparation of the foam include a polyisocyanate trimerization catalyst used in admixture with a urethane catalyst.