METHOD FOR PRODUCING SOFT POLYURETHANE FOAM, AND SHEET

PROBLEM TO BE SOLVED: To provide a method for producing soft polyurethane foam that can suppress a fall in mechanical characteristics of foam caused by the use of a stored polyol system liquid.SOLUTION: Polyol in use is polyether polyol (A1) with an average number of hydroxyl groups of 2-8 and a hyd...

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Bibliographische Detailangaben
Hauptverfasser:	ITO TAKASHI, SASAKI TAKAYUKI, HORIE AKIO
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To provide a method for producing soft polyurethane foam that can suppress a fall in mechanical characteristics of foam caused by the use of a stored polyol system liquid.SOLUTION: Polyol in use is polyether polyol (A1) with an average number of hydroxyl groups of 2-8 and a hydroxyl value of 5-45 mgKOH/g, obtained through a process of ring-opening addition polymerization of alkylene oxide to an initiator in the presence of a composite metal syanide complex catalyst. A foam stabilizer (G) in use is dimethylpolysiloxane represented by formula (I) (wherein n is represented by an average value of 1-10).