Method of coating organic fibers with polytetrafluoroethylene
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United States of America Patent
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Nov 4, 1980
Grant Date -
N/A
app pub date -
Aug 3, 1978
filing date -
Aug 3, 1978
priority date (Note) -
Expired
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Abstract
The disclosure is of a method for improving the acid resistance, hydrophobicity, oleophobicity and dust or dirt release properties of synthetic organic fibers. The method comprises coating the fibers with an aqueous dispersion of polytetrafluoroethylene particles in the presence of a water soluble, chromium complex of a long chain fluorochemical. The method is particularly advantageous for improving polyaramid fibers such as Nomex fibers in fabrics to be used as a filter means.
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