Polyamide fiber substrate having stain resistance, composition and method
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United States of America Patent
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Nov 9, 2004
Grant Date -
Sep 26, 2002
app pub date -
Mar 19, 2002
filing date -
Dec 17, 1999
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Abstract
Semi-bleached to bleached sulfonated aromatic condensation resin alone or in combination with a semi-soluble methacrylic polymer of high molecular weight provides improved resistance to staining by acid colorants in a fibrous polyamide or wool substrate.
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