FREMGANGSMADE TIL FREMSTILLING AF HIDTIL UKENDTE TERMISK OG KEMISK RESISTENTE POLYURETANKUNSTSTOFFER

New heat- and chemical-resistant polyurethane foams are produced from polyols and isocyanates in the presence of a foaming agent. The polyols used are compounds of the formula where the substituents are each as defined in Claim 1. However, it is also possible to use mixtures of these polyols with fu...

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Bibliographische Detailangaben
Hauptverfasser:	ROKICKI G A, GORAJ B A, CHOMICZ D E, BRZOZOWSKI Z, KIELKIEWICZ J S, KAMINSKI A F
Format:	Patent
Sprache:	dan
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:	New heat- and chemical-resistant polyurethane foams are produced from polyols and isocyanates in the presence of a foaming agent. The polyols used are compounds of the formula where the substituents are each as defined in Claim 1. However, it is also possible to use mixtures of these polyols with further low viscosity polyols. The reaction is preferably carried out in the presence of a catalyst. The polyols used can be obtained by hydrolysis of corresponding epoxy resins. The foams are suitable for use as construction materials for transport means, in the building industry and also in the electrical engineering industry.