Polyamide resin composition for slide fastener, slide fastener component, and slide fastener provided with same
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United States of America Patent
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Jul 21, 2020
Grant Date -
May 9, 2019
app pub date -
May 13, 2016
filing date -
May 13, 2016
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Abstract
Provided is a polyamide resin composition for a slide fastener that includes at least one polyamide resin and reinforcing fibers, wherein a total mass of the polyamide resin and the reinforcing fibers accounts for 90% by mass or more of the composition; wherein poly(m-xylylene adipamide) (MXD 6) accounts for 60% by mass or more of the polyamide resin; wherein reinforcing fibers account for 45 to 70% by mass of the total mass of the polyamide resin and the reinforcing fibers; wherein both first reinforcing fibers having a fiber diameter of from 5 to 7 μm and second reinforcing fibers having a fiber diameter larger than that of the first reinforcing fibers by more than 2 μm account for 90% by mass or more of the reinforcing fibers; and wherein the first reinforcing fibers account for 20% by mass or more and less than 50% by mass of the reinforcing fibers.
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