SOFT POLYURETHANE FOAM AND PAD FOR SEAT

The present invention provides a soft polyurethane foam that is obtained by foam molding a foaming stock solution containing a polyol, a polyisocyanate, a cross-linking agent, a foaming agent, and a catalyst in which: a polyether polyol having a weight-average molecular weight (Mw) of 3,000 to 12,00...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YOSHITOMI Kosuke, SHINOHARA Toshimitsu
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BEDS CHAIRS CHEMISTRY COFFEE MILLS COMPOSITIONS BASED THEREON DOMESTIC ARTICLES OR APPLIANCES FURNITURE HUMAN NECESSITIES INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOFAS SPICE MILLS SUCTION CLEANERS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present invention provides a soft polyurethane foam that is obtained by foam molding a foaming stock solution containing a polyol, a polyisocyanate, a cross-linking agent, a foaming agent, and a catalyst in which: a polyether polyol having a weight-average molecular weight (Mw) of 3,000 to 12,000 and having three to four functional groups is contained; a molar ratio of ethylene oxide groups/propylene oxide groups in all the compound contained as the cross-linking agent is 100 or more; and diphenylmethane diisocyanate is contained in an isocyanate equivalent of 70 or more.