PROCESS FOR MAKING LOW DENSITY FLEXIBLE MOLDED AND SLABSTOCK POLYURETHANE FOAMS

PROCESS FOR MAKING LOW DENSITY FLEXIBLE MOLDED AND SLABSTOCK POLYURETHANE FOAMS

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: MICHAEL A.P. GANSOW, CHRISTIAN M. LEHMANN
Format: Patent
Sprache:eng
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.