Fire-resistant fabric
AssigneeSprings Industries, Inc.
InventorsWilliam M. Cooke, James E. Hendrix, Thomas W. Tolbert
Life of this patent
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Abstract
A fire-resistant fabric suitable for use as a flame barrier comprising a flame durable textile fabric substrate formed of corespun yarns, the yarns comprising a core of flame resistant fiber and a sheath of modacrylic intumescent staple fibers. In normal use, the fabric is flexible and conformable and has good air porosity. When exposed to high temperature or a flame, however, the modacrylic intumescent sheath fiber reacts and swells to form a char which closes the pores or interstices of the fabric to thus prevent flame or hot gases from penetrating therethrough.
Claims6
A fire-resistant laminate comprising an underlying flammable layer and a flame barrier fabric overlying said underlying flammable layer, said flame barrier fabric comprising a flame durable textile fabric substrate formed of corespun yarns, said yarns comprising a core of a flame resistant fiber and a sheath of modacrylic intumescent staple fibers which swell and form a char on exposure to flame.
Dependencies are inferred from the claim text.