Fire resistant corespun yarn and fabric comprising same
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United States of America Patent
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Jun 25, 2002
Issued Date -
N/A
app pub date -
Nov 14, 2000
filing date -
Sep 28, 1999
priority date (Note) -
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Abstract
Provided is a fire resistant corespun yarn. The yarn includes a core of high temperature resistant continuous inorganic filaments; a first sheath of staple fibers surrounding the core, wherein the staple fibers comprise fibers of at least one fire resistant material selected from the group consisting of meta-aramids, para-aramids, fluoropolymers and copolymers, chloropolymers and copolymers, polybenzimidazole, polyimides, polyamideimides, partially oxidized polyacrylonitriles, novoloids, poly (p-phenylene benzobisoxazoles), poly (p-phenylene benzothiazoles), polyphenylene sulfides, flame retardant viscose rayons, polyvinyl chloride homopolymers and copolymers, polyetheretherketones, polyketones, polyetherimides, polylactides, and combinations thereof; and a second sheath of staple fibers surrounding the first corespun yarn. This yarn may be woven and knit in fine, non-plied or plied form and extends the range of fineness of fabrics below heretofore achievable limits. Also provided is a fire resistant fabric which includes a fire resistant fabric substrate formed from the fire resistant corespun yarn, as well as a product upholstered with the fire resistant fabric.
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