Fire-resistant fabric

B - Operations – Transporting – 32 – B

Patent

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B32B 5/24 (2006.01) B32B 5/18 (2006.01) B32B 27/12 (2006.01) B32B 33/00 (2006.01) D02G 3/44 (2006.01) D03D 15/12 (2006.01)

Patent

CA 2021540

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.

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