Abstract: A fire resistant carpet backing formulation has five components of: a) a polyurethane dispersion; b) fire retardant components having at least a) ammonium polyphosphate, b) melamine, and c) a char former; c) solvents including water; d) filler, pigment and grinding aids; and e) surfactants. Preferred char formers are pentaerythritol and polysaccharides. The polyurethane dispersion is present in about 18-30% by weight, the fire retardant components of part (b) are present in about 39-61% by weight and the solvents of part (c) are present in about 9-25% by weight in the preferred embodiments. Nylon carpets made with this backing are fire retardant and meet the airline standards for fire safety.

Abstract: A pressure-sensitive covering having improved fire resistance. The covering, at a minimum, includes a cured layer of an intumescence material having on an inner face a layer of pressure-sensitive adhesive, with the pressure-sensitive adhesive initially being covered by a standard release sheet. To improve the structural integrity of the cured layer before and after intumescence, there may be provided a scrim in the form of an open mesh within the cured layer. To further improve the structural integrity, a base member may be applied between the cured layer and pressure-sensitive adhesive layer. The cured layer may extend peripherally beyond the base member to improve fire resistance. To improve the durability of the covering or patch, there may be provided an overlay in the form of a plastic or foil laminate which extends over the cured resin layer and peripherally beyond the resin layer.