METHOD FOR PRODUCING AN ISOCYANATE AND ISOCYANURATE GROUPS CONTAINING COMPOSITION AND PUR/A PIR HARD FOAM FORMED FROM SAME

The present disclosure relates to a method for producing a composition containing isocyanate and isocyanurate groups having the following steps: 1) mixing a monomer polyisocyanate with polymer diphenylmethane diisocyanate, thereby obtaining a mixture, and 2) allowing the mixture obtained in step 1)...

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Bibliographische Detailangaben
Hauptverfasser:	SCHLEIERMACHER, Stephan, ARNTZ, Hans-Detlef
Format:	Patent
Sprache:	eng ; fre ; ger
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:	The present disclosure relates to a method for producing a composition containing isocyanate and isocyanurate groups having the following steps: 1) mixing a monomer polyisocyanate with polymer diphenylmethane diisocyanate, thereby obtaining a mixture, and 2) allowing the mixture obtained in step 1) to react in the presence of a trimerization catalyst, thereby obtaining a composition containing isocyanate and isocyanurate groups. The monomer polyisocyanate used in step 1) has a total chlorine content of