processos para a preparação contìnua de poliisocianatos com estrutura biureto

processos para a preparação contìnua de poliisocianatos com estrutura biureto

A process for the continuous production of polyisocyanates (I) having a biuret structure by continuous reaction of an excess of organic diisocyanates having exclusively aliphatic and cycloaliphatic isocyanate groups with organic diamines having exclusively aliphatic and cycloaliphatic primary amine...

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Bibliographische Detailangaben
Hauptverfasser: SIEGFRIED OECKL, REINHARD HALPAAP, HARALD MERTES, DIETER MAGER
Format: Patent
Sprache:por
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:A process for the continuous production of polyisocyanates (I) having a biuret structure by continuous reaction of an excess of organic diisocyanates having exclusively aliphatic and cycloaliphatic isocyanate groups with organic diamines having exclusively aliphatic and cycloaliphatic primary amine groups at greater than 170 degrees C comprises dose addition of acids during the reaction.