Flame-resistant polyurethanes

The flame-resistant polyurethanes of the invention comprise, as flameproofing agents, mixtures of oligomeric phosphoric acid esters which carry hydroxyalkoxy groups, of the formula I in which +E,ovs q+EE denotes an average chain length of 0.5 to 10, R1 is a hydroxyl-containing radical of the formula...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	STAENDEKE, HORST, SICKEN, MARTIN
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	The flame-resistant polyurethanes of the invention comprise, as flameproofing agents, mixtures of oligomeric phosphoric acid esters which carry hydroxyalkoxy groups, of the formula I in which +E,ovs q+EE denotes an average chain length of 0.5 to 10, R1 is a hydroxyl-containing radical of the formula II a, R2 is a radical of the formula III R3 is a radical of the formula II b, R4 is R1 or R3; R5, R6 and R7 are an H atom or an alkyl radical having 1 to 6 carbon atoms, m is 0 to 4 and n is 1 to 4.