Flame retardant composition for cotton articles
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United States of America Patent
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Nov 19, 2013
Grant Date -
Aug 29, 2013
app pub date -
Jun 8, 2011
filing date -
Jun 30, 2010
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Abstract
Compositions useful for the flame retardant finishing of cotton articles or other cellulose materials are described. The compositions are obtainable by reacting a tetrakishydroxyalkylphosphonium (THP) salt with caprolactam and urea to form a condensation product and subsequently forming a condensate from excess THP salt and excess urea. The compositions endow cotton articles with flame retardant properties and a pleasantly soft hand coupled with good durability to laundering processes.
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