POLYISOCYANATE COMPOSITION AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To obtain a polyisocyanate composition excellent in reactivity at low temperature, also good in preservation stability and useful as a raw material for various kinds of polyurethanes by including a specific diisocyanate and a specified polydiisocyanate. SOLUTION: The objective...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SHIMODA MANABU, HASEYAMA RYUJI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES HETEROCYCLIC COMPOUNDS INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a polyisocyanate composition excellent in reactivity at low temperature, also good in preservation stability and useful as a raw material for various kinds of polyurethanes by including a specific diisocyanate and a specified polydiisocyanate. SOLUTION: The objective composition is obtained by allowing the composition to contain a diisocyanate of formula I [one or both of R1 and R2 are each formula II (k is 0-2; j and m are each 1-5; h is 0-2) with the proviso that when one of them is formula II, the other is a 2-12C alkylene], and a polyisocyanate having a skeleton of formula II regulated so that the content of the compound of the formula I in which n is 0 may be 30-90 wt.%, the content of the one of the formula I in which n is 1 may be 9.5-40 wt.%, and the content of the one of the formula I in which n is 2-4 may be 0.5-30 wt.%. The composition is produced, fop example, by reacting a polycyclic aliphatic diisocyanate of formula III with carbon dioxide gas in the presence of 0.001-10.0 wt.% alkyl group-containing tertiary phosphine based on the amount of the diisocyanate at (-20 deg.C) to 80 deg.C.