PRODUCTION OF ISOCYANURATE-GROUP-CONTAINING POLYISOCYANATE FROM ALIPHATIC AND AROMATIC ISOCYANATE COMPOUNDS

Polyisocyanates (I) contg. isocyanurate gps., and prepd. by the following method, are new. (I) are prepd. by (a) reacting 10-90 pts. low mol. aliphatic isocyanate (II) with a mol. wt. of 128-800 and NCO functionality of 1.7-2.2 and 90-10 pts. low-mol. aromatic isocyanate (III) with a mol. wt. of 148...

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Hauptverfasser:	KAARUUGERUTO DEIIRISU, RAINHARUTO HARUPAAPU, MARUTEIN BURAAMU, RUTSUTSU SHIYUMARUSUTEIIKU
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:	Polyisocyanates (I) contg. isocyanurate gps., and prepd. by the following method, are new. (I) are prepd. by (a) reacting 10-90 pts. low mol. aliphatic isocyanate (II) with a mol. wt. of 128-800 and NCO functionality of 1.7-2.2 and 90-10 pts. low-mol. aromatic isocyanate (III) with a mol. wt. of 148-800 and NCO functionality of 1.7-2.2, with catalytic trimerisation with 0.1-10% aminosilyl cpd. (IV) w.r.t. (II) + (III); and (b) removing excess distillable monomers to a (II) + (III) content < 0.7 wt.%. Also claimed is the method of prepg. (I).