JPH0627174B

PURPOSE:To obtain a phosphorus-containing polyurethane substance having excellent physical properties and high flame retardancy, by using a specified phosphine oxide derivative as part of the polyhydroxyl compound in the production of a polyurethane. CONSTITUTION:In the production of a polyurethane...

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Bibliographische Detailangaben
Hauptverfasser:	ISHIZUKA YOSHITSUGU, NAKAGAWA SATOSHI, KUNO JUNICHI, MATSUMOTO HITOSHI
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 a phosphorus-containing polyurethane substance having excellent physical properties and high flame retardancy, by using a specified phosphine oxide derivative as part of the polyhydroxyl compound in the production of a polyurethane. CONSTITUTION:In the production of a polyurethane substance by using a polyisocyanate and a polyhydroxyl compound as the principal reaction component, an oxyalkylenetris(hydroxylalkyl)phosphine oxide obtained by adding ethylene oxide and/or propylene oxide to tris(hydroxypropyl)phosphine oxide is used as at least part of the polyhydroxyl compound. As said phosphine oxide derivative used, one having a hydroxyl value of, preferably, 25-650mg KOH/g is used. The amount of the phosphine oxide derivative used is preferably 5-70wt% based on the total polyurethane.