Melt-extruded monofilament comprised of a blend of polyethylene terephthalate and a thermoplastic polyurethane
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United States of America Patent
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Mar 26, 1996
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N/A
app pub date -
Aug 4, 1994
filing date -
Aug 5, 1988
priority date (Note) -
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Abstract
This invention discloses a fiber suitable for a papermaker's forming fabric, comprising a blend of 60 to 90% by weight of a polyethylene terephthalate, together with 40 to 10% by weight of a thermoplastic polyurethane, which may be an ester or ether-based type. Additionally, it is contemplated that the blend may contain up to 5% by weight of a hydrolysis stabilizer. The high abrasion resistance of these blended monofilaments makes them particularly advantageous for use in replacing the nylon-6 and nylon-66 monofilaments currently used in paper machine forming fabrics.
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