PRODUCTION OF WATER ABSORBING POLYURETHANE FOAM

PURPOSE:To obtain the subject foam, having elasticity, excellent in absorbing and holding performance for aqueous liquids and useful as disposable diapers, etc., by blending a polyether polyol with polyethylene glycol in a specific proportion. CONSTITUTION:(A) A polyether polyol having an average mo...

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Bibliographische Detailangaben
Hauptverfasser:	HAMASHIMA YOSHIJI, KOBAYASHI TAKATOSHI, NANBU HIROMI, MEIWA YOSHIHEI
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:	PURPOSE:To obtain the subject foam, having elasticity, excellent in absorbing and holding performance for aqueous liquids and useful as disposable diapers, etc., by blending a polyether polyol with polyethylene glycol in a specific proportion. CONSTITUTION:(A) A polyether polyol having an average molecular weight within the range of 1500-15000 and 40-90wt.% content of polyoxyethylene units and (B) a polyol, consisting of polyethylene glycol having an average molecular weight within the range of 300-12000 at a weight ratio of the components (A) to (B) within the range of (85:15)-(15:85) are used as a polyol to provide the objective foam by a one-shot method. Furthermore, a bifunctional polyether polyol is preferably used as the component (A).