Low-shrinkage polyester industrial yarn and preparation method thereof
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United States of America
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Apr 20, 2021
Grant Date -
Jul 16, 2020
app pub date -
Jul 27, 2018
filing date -
Jul 27, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A low-shrinkage polyester industrial yarn and a preparation method thereof are provided. The preparation method includes the following steps: subjecting the modified polyester to polycondensation, melting, measuring, extruding, cooling, oiling, stretching, heat setting and winding, wherein the content of the crown ether in the oil agent is 67.30-85.58 wt %. The material of the prepared low shrinkage polyester industrial yarn is a modified polyester, the molecular chain of the modified polyester includes a terephthalic acid segment, an ethylene glycol segment, and a branched diol segment, and the structural formula of the branched diol is as follows:
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