SYNTHETIC FIBER ROPES WITH LOW-CREEP HMPE FIBERS
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United States of America Patent
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Dec 8, 2022
app pub date -
Nov 12, 2020
filing date -
Nov 12, 2020
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Abstract
A braided rope includes a plurality of braided strands comprising twisted yarns. Each of the twisted yarns includes a blend of first fibers and second fibers. The first fibers are high modulus polyethylene (HMPE) fibers and the second fibers may be lyotropic polymer filaments, thermotropic polymer filaments, or polyphenylene benzobisoxazole fibers. The first fibers can have a creep rate of no more than 3.0×10−8 percent per second at 20° C. while subjected to a stress of 5.0 grams/dtex. The first fibers can have a creep rate of no more than 1.0×10−7 percent per second at 20° C. while subjected to a stress of 7.5 grams/dtex.
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