FIRE RESISTANT COMPOSITIONS

摘要

A fire resistant polymeric composition which forms a target mineral on firing of the polymeric composition including 20 - 60 wt% of an organic polymer; 2 - 30 wt% of a magnesium compound that oxidises to form MgO; and 5 to 30 wt% silica. The composition preferably includes an alkaline earth metal borosilicate compound, the alkaline earth metal borosilicate compound forming a ceramic composition at an elevated temperature.