PREPARATION OF POLYISOCYANATE CONTAINING URETHODIONE

Process for the preparation of uretdione-group-containing polyisocyanates by reacting monomeric aromatic diisocyanates in an inert organic solvent in the presence of 1,2-dimethylimidazole as catalyst, where the ratio by weight of solvent to diisocyanate is in the range from 0.1:1 to 2:1.

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Bibliographische Detailangaben
1. Verfasser:	BERUNTO BURUFUMAN
Format:	Patent
Sprache:	eng
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:	Process for the preparation of uretdione-group-containing polyisocyanates by reacting monomeric aromatic diisocyanates in an inert organic solvent in the presence of 1,2-dimethylimidazole as catalyst, where the ratio by weight of solvent to diisocyanate is in the range from 0.1:1 to 2:1.