PROCESS FOR THE PREPARATION OF POLYISOCYANATES AND CATALYST KIT FOR SAME

The application relates to a catalyst kit comprising a trimerisation catalyst for the asymmetric trimerisation of polyisocyanates and a catalyst poison for the trimerisation catalyst, which is characterised in that the trimerisation catalyst and the catalyst poison each have a water content of at mo...

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Bibliographische Detailangaben
Hauptverfasser:	RICHTER, Frank, BRAHM, Martin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON HETEROCYCLIC COMPOUNDS 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:	The application relates to a catalyst kit comprising a trimerisation catalyst for the asymmetric trimerisation of polyisocyanates and a catalyst poison for the trimerisation catalyst, which is characterised in that the trimerisation catalyst and the catalyst poison each have a water content of at most 0.5 wt %. The application furthermore relates to the use of the catalyst kit for the preparation of polyisocyanates containing iminooxadiazinedione groups by oligomerisation of monomeric di- and/or triisocyanates and a process for the preparation of polyisocyanates containing iminooxadiazinedione groups.