MONOFILAMENT AND METHOD FOR PRODUCING SAME
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United States of America Patent
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Issued Date -
Aug 22, 2024
app pub date -
May 20, 2022
filing date -
Jun 8, 2021
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Abstract
To provide a monofilament of PA4, which has a low density. The monofilament of polyamide 4 in an embodiment of the present invention has a density of 1.230 g/cm3 or less. A method for producing a monofilament of polyamide 4 according to an embodiment of the present invention includes: melt-extruding polyamide 4; and cooling a melted and extruded matter of the polyamide 4 obtained by the melt-extruding process, at −10° ° C. or lower by using a nonpolar solvent.
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