PANEL WITH FIRE BARRIER

A panel includes a first metal facing, an insulating foam layer, and a fire barrier layer between the first metal facing and the foam layer. The fire barrier layer includes a dispersion of expandable graphite in a polyisocyanurate polymer matrix. The polymer matrix is formed by reaction at an isocya...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BERTUCELLI LUIGI, GUANDALINI MAURIZIO, LOTTI LUCA
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A panel includes a first metal facing, an insulating foam layer, and a fire barrier layer between the first metal facing and the foam layer. The fire barrier layer includes a dispersion of expandable graphite in a polyisocyanurate polymer matrix. The polymer matrix is formed by reaction at an isocyanate index of more than 250 of an isocyanate-containing reactant and a polyol reactant including a long chain polyol of equivalent weight of more than 300. The amount of expandable graphite per unit area in the fire barrier layer is at least 200 g/m2.