Fire retardant material

Abstract

A fire-retardant material including a polymer matrix including, in reacted form, a diisocyanate, a chain extender, a carboxylate-comprising organic diol, an organophosphorus-containing polyol, an organophosphorus-free polyol. The diisocyanate and phosphorous-containing polyol are present in the polymer matrix a mole ratio of 1:1 to 50:1. The fire-retardant material includes 0.05 to 2.5 wt. % a metal-organic framework, based on a total weight of fire-retardant material. The fire-retardant material shows enhanced protection of metal surfaces from hydrogen embrittlement and may find use as a coating on a material exposed to hydrogen or a hydrogen-containing gas mixture.

Dependencies are inferred from the claim text.