PROCESS FOR THE PRODUCTION OF ALLOPHANATE POLYISOCYANATES

1296652 Polyurethane foams. FARBENFABRIKEN BAYER AG 7 Jan 1971 [27 Feb 1970 17 Aug 1970] 783/71 Headings C3C and C3R [Also in Division C2] Polyurethane foams are prepared by reacting an allophanate polyisocyanate containing at least one aromatically bound isocyanate group with a compound containing...

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Bibliographische Detailangaben
Hauptverfasser:	WINDEMUTH, ERWIN, TRENSE, ULRICH
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY COMPOSITIONS BASED THEREON 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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Zusammenfassung:	1296652 Polyurethane foams. FARBENFABRIKEN BAYER AG 7 Jan 1971 [27 Feb 1970 17 Aug 1970] 783/71 Headings C3C and C3R [Also in Division C2] Polyurethane foams are prepared by reacting an allophanate polyisocyanate containing at least one aromatically bound isocyanate group with a compound containing Zerewitinov-active hydrogen atoms. In the example, foams are prepared from (7) an allophanate polyisocyanate, N-ethyl-diethanolamine, and organosiloxane-alkylene oxide block polymer.