FLAME RESISTANT RIGID POLYURETHANE FOAMS BLOWN WITH HYDROFLUOROCARBONS

Rigid polyurethane foams having improved flame resistance are disclosed. The foams are prepared from a composition containing (a) an isocyanate, (b) an isocyanate reactive composition containing an aromatic polyester polyol, (c) an organo phosphorus compound and (d) a C1 to C4 hydrofluorocarbon.

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Bibliographische Detailangaben
Hauptverfasser: BURNS STEVEN BRUCE BURNS STEVEN BRUCE, SINGH SACHCHIDA NAND SINGH SACHCHIDA NAND, JONES PATRICIA ANN JONES PATRICIA ANN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Rigid polyurethane foams having improved flame resistance are disclosed. The foams are prepared from a composition containing (a) an isocyanate, (b) an isocyanate reactive composition containing an aromatic polyester polyol, (c) an organo phosphorus compound and (d) a C1 to C4 hydrofluorocarbon.