Melt extrusion spinning polyamide fibers with sulfonated reagent and thermoplastic carrier
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United States of America Patent
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Jan 20, 2004
Grant Date -
Dec 12, 2002
app pub date -
Apr 30, 2002
filing date -
Aug 31, 1995
priority date (Note) -
Expired
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Abstract
A method of producing a stain-resistant and soil-resistant polyamide yarn comprises the steps of (a) melt compounding a sulfonated aromatic acid with a thermoplastic polyester or polyamide carrier resin to form a concentrate; (b) adding said concentrate to a fiber-forming polyamide to form a fiber-forming polyamide composition; (c) melt extrusion spinning said fiber-forming polyamide composition to form a yarn; and (d) drawing said yarn.
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