Liquid prepolymer compositions

A bitumen-free liquid prepolymer composition comprising : a) from 50 to 99% by weight of an isocyanate-containing prepolymer obtained by the reaction of a stoichiometric excess of diphenylmethane diisocyanate with an organic compound containing a plurality of isocyanate-reactive groups, and b) from...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PHANOPOULOS, CHRIS, BAGAGLIO, GIAN-CARLO
Format:	Patent
Sprache:	eng ; fre ; ger
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:	A bitumen-free liquid prepolymer composition comprising : a) from 50 to 99% by weight of an isocyanate-containing prepolymer obtained by the reaction of a stoichiometric excess of diphenylmethane diisocyanate with an organic compound containing a plurality of isocyanate-reactive groups, and b) from 50 to 1% by weight of a substituted diphenylmethane compound which is free from ester groups, isocyanate groups and isocyanate-reactive groups and has a melting point below 25 DEG C, a boiling point above 150 DEG C and a fire point above 100 DEG C. The composition has a good stability and is useful for preparing elastomers and foams.