BLOCKED POLYISOCYANATES WITH IMPROVED STORAGE STABILITY

BLOCKED POLYISOCYANATES WITH IMPROVED STORAGE STABILITY The present invention is directed to a process for improving the storage stability of a composition which contains a) a blocked polyisocyanate prepared by blocking the isocyanate groups of an organic polyisocyanate with a blocking agent compris...

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Bibliographische Detailangaben
Hauptverfasser:	KELSO, ROBERT G, MARKUSCH, PETER H, SCHMITT, PETER G
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	BLOCKED POLYISOCYANATES WITH IMPROVED STORAGE STABILITY The present invention is directed to a process for improving the storage stability of a composition which contains a) a blocked polyisocyanate prepared by blocking the isocyanate groups of an organic polyisocyanate with a blocking agent comprising a di-C1-C12-alkyl and/or -alkoxyalkyl malonate and b) is free from compounds containing at least two isocyanate-reactive hydrogens, which comprises incorporating a stabilizing amount of a compound having monofunctional reactivity towards isocyanates into the composition. The present invention is also directed to the storage stable composition produced in accordance with the above process.