US Patent 7718266 Fire-resisting glass

There is provided a fire-resisting glass including a first laminated glass pane made of two float-glass panes connected via an intermediate organic layer, a second laminated glass pane made of two float-glass panes connected via an intermediate organic layer, an airtight clearance between the two laminated glass panes which is evacuated or filled with a gas, wherein a thermal insulation layer is provided on at least one of the sides of the float-glass panes facing the intermediate organic layer or the clearance. The thermal insulation layer may be provided on the two sides of the laminated glass panes facing the clearance.