Composite thermal protective system and method
AssigneeNu-Chem, Inc.
InventorsEdward W. Taylor, Jr., Rubin Feldman, James A. Rippe, Jr.
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Abstract
A composite system capable of protecting a substrate from a jet fire including a lower layer of an active fire protective material and an upper layer of a fire protective material. The upper layer forms an open cell matrix when exposed to a jet fire to permit passage of gasses from the lower layer to ambient. The upper layer comprises a fill of refractory material and protects the system during initial exposure to a hyperthermal condition. The upper layer swells on exposure to hyperthermal conditions, but swells less than the lower layer.
Claims40
A composite system comprising a substrate, a lower layer of a polymeric coating of active fire protective material applied above the substrate, and an upper layer of a polymeric coating of ablative fire protective material applied to the lower layer, the ablative material forming an open cell matrix when exposed to fire or other hyperthermal conditions to permit passage of gasses from the lower layer to ambient, the system protecting the substrate from the hyperthermal conditions.
A composite system capable of protecting a substrate from a jet fire, the system comprising a lower layer of an active fire protective material which swells when exposed to a fire or other hyperthermal condition and an upper layer of a fire protective material which when exposed to a fire or other hyperthermal condition swells to form an open cell matrix to permit passage of gasses from the lower layer to ambient, the upper layer swelling less than the lower layer, the upper layer comprising a fill of refractory material comprising at least about seven percent of the upper layer by weight.
A composite system capable of protecting a substrate from a jet fire, the system comprising
- a lower layer of an active fire protective material which swells when exposed to a fire or other hyperthermal condition, the lower layer comprising 30% to 70% by weight of a polymeric resin and 20% to 50% gas formers, the lower layer having a thickness of about 1 to about 15 mm, and
- an upper layer of a fire protective material which when exposed to a fire or other hyperthermal condition swells to form an open cell matrix to permit passage of gasses from the lower layer to ambient, the upper layer comprising 35% to 65% by weight of a polymeric resin, 5% to 30% gas formers, and about 10% to about 40% refractory fillers, the upper layer having a thickness of about 1 to about 6 mm,
- the upper layer containing, on a weight percent basis, less gas formers and more refractory fillers than the lower layer.
Dependencies are inferred from the claim text.