JPS6334887B

The instant invention is directed to a process for the production of elastic polyurethane foams capable of being flame laminated and high frequency welded, comprising reacting (a) polyisocyanates with (b) polyethers having a molecular weight of from 400 to 10,000 and having at least two hydroxyl gro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HAINTSU MYUURERU, KURAUSU KEENITSUHI, PEETERU ZAIFUERUTO, HANSU UARUTERU IRUGERU, UORUFUGANGU RAIHIMAN
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:	The instant invention is directed to a process for the production of elastic polyurethane foams capable of being flame laminated and high frequency welded, comprising reacting (a) polyisocyanates with (b) polyethers having a molecular weight of from 400 to 10,000 and having at least two hydroxyl groups and (c) hydroxy-pivalic acid neopentylglycol ester of the formula: used in a quantity of from 1 to 20% by weight, based on the hydroxyl polyether, in the presence of a blowing agent. The instant invention is also directed to the polyurethane foams prepared thereby.