Liquid reactive compositions comprising polyisocyanates, epoxides and solutions of alkali metal halides in polyoxyalkylenic compounds

Liquid reactive compositions comprising polyisocyanates, epoxides and solutions of alkali metal halides in polyoxyalkylenic compounds

Reactive compositions liquid at a temperature lower than 70 DEG C., comprising: A) at least one organic polyisocyanate; B) a mono- or poly-epoxide, or a mixture of different mono- and/or poly-epoxides: C) a catalyst, liquid at a temperature lower than 70 DEG C., consisting of a solution of at least...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PARODI, FABRIZIO, ZANNONI, CARLA
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
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Beschreibung
Zusammenfassung:Reactive compositions liquid at a temperature lower than 70 DEG C., comprising: A) at least one organic polyisocyanate; B) a mono- or poly-epoxide, or a mixture of different mono- and/or poly-epoxides: C) a catalyst, liquid at a temperature lower than 70 DEG C., consisting of a solution of at least one alkali metal halide in a polyoxyalkylenic compound or in a mixture of different polyoxyalkylenic compounds, said polyoxyalkylenic compound containing at least one hydroxyl group of alcoholic type. These reactive compositions are able to gel and solidify rapidly at temperatures between 0 DEG and 70 DEG C., to form a glassy polymer of high softening point.