Core-sheath composite conductive fiber
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United States of America Patent
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Mar 23, 2004
Grant Date -
N/A
app pub date -
Jul 22, 2002
filing date -
Sep 17, 1999
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Abstract
A sheath-core composite conductive fiber having a sheath component made of a fiber-forming polymer containing conductive carbon black, is characterized in that, with respect to an inscribed circle of a core component and an inscribed circle of a sheath component in a cross section of the fiber, a radius (R) of the inscribed circle of the sheath component and a distance (r) between the centers of two inscribed circles satisfy a specific relationship, and a sheath-core composite conductive fiber having: a core component made of a polyester containing ethylene terephthalate as a main component, and a sheath component made of a mixture of a copolyester wherein ethylene terephthalate accounts for 10 to 90 mol % of constituent units thereof and carbon black. The conductive fiber can be used alone or in combination with other fibers in various applications, e.g., special working clothes such as dust-free clothes and interiors such as carpets.
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