Treating fibrous polyamide articles
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United States of America Patent
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Oct 24, 1989
Issued Date -
N/A
app pub date -
Feb 21, 1989
filing date -
Oct 14, 1986
priority date (Note) -
Expired
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Abstract
A method for providing fibrous polyamide materials with stain resistance is provided. The method comprises contacting the fibrous polyamide materials with an aqueous solution comprising a normally solid, water-soluble, partially sulfonated novolak resin, which comprises the condensation product of at least one phenolic compound and an aldehyde, and a water-soluble divalent metal salt.
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