Low smoke, low toxicity carpet
AssigneeAkro Fireguard Products, Inc.
InventorsDennis Maples, George Danker, David Campanella
Life of this patent
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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.
Claims24
A low smoke, fire resistant carpet comprising:
- carpet fibers adhered to a carpet backing including a polymeric binder having fire retardant components dispersed therein;
- said fire retardant components being present in a major proportion by weight in the polymeric binder and permitting the carpet to meet aircraft flammability, smoke generation and toxic gas emission standards;
- said fire retardant components comprising at least a fire retardant spumescent, a catalyst, and a char former;
- said backing being made from a formulation comprising a dispersion of said fire retardant components and said binder in a solvent having water as the major proportion;
- and
- said formulation being coated on said carpet fibers and cured to provide said fire resistant carpet.
Dependencies are inferred from the claim text.