Urea-superacid salts and their use as a curing catalyst of epoxy resins

As a curing catalyst of epoxy resins, superacid salts of an N, N'-di- or N, N', N'-trisubstituted urea are disclosed. The urea component is produced by reacting an organic isocyanate and a primary or secondary amine at least one of which is monofunctional. The catalyst is soluble in c...

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Bibliographische Detailangaben
Hauptverfasser:	MIYAZONO, TADAFUMI, TABUCHI, KOJI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	As a curing catalyst of epoxy resins, superacid salts of an N, N'-di- or N, N', N'-trisubstituted urea are disclosed. The urea component is produced by reacting an organic isocyanate and a primary or secondary amine at least one of which is monofunctional. The catalyst is soluble in conventional organic solvents, well compatible with the epoxy resin and catalizes the cationic polymerization reaction of epoxy resins at room temperature.