LIQUID ISOCYANATE PREPOLYMERS

Mo-3048 LIQUID ISOCYANATE PREPOLYMERS The present invention is directed to a liquid storage-stable isocyanate prepolymer having an isocyanate group content of from 10 to 30% by weight prepared by reacting: i) a polyamine containing at least two aromatically bound primary amino groups prepared by hyd...

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Bibliographische Detailangaben
Hauptverfasser:	BLUE, CLARENCE D, SLACK, WILLIAM E
Format:	Patent
Sprache:	eng ; fre
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:	Mo-3048 LIQUID ISOCYANATE PREPOLYMERS The present invention is directed to a liquid storage-stable isocyanate prepolymer having an isocyanate group content of from 10 to 30% by weight prepared by reacting: i) a polyamine containing at least two aromatically bound primary amino groups prepared by hydrolyzing an isocyanate compound having an isocyanate group content of from 0.5 to 40% by weight, with ii) an isocyanate mixture comprising a) from 50 to 100% by weight of diphenyl methane diisocyanates if which from 3 to 50% by weight consist of 2,2'- and 2,4'-isomers, and b) the balance being polyphenylpolymethylene polyisocyanates, with the proviso that if said mixture comprises form 95 to 100% by weight of diphenylmethane diisocyanate, at least 15% by weight of said diisocyanate consisting of the 2,2'- and 2,4'- isomers. MO-3048