LOW SMOKE, LOW TOXICITY CARPET

摘要

A fire resistant carpet backing formulation has five components of:a) a polyurethane dispersion;b) fire retardant components having at leasta) ammonium polyphosphate,b) melamine, andc) a char former;c) solvents including water;d) filler, pigment and grinding aids; ande) 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.