Aqueous polytetrafluoroethylene dispersion composition and use thereof
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United States of America Patent
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Nov 28, 2000
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N/A
app pub date -
Sep 29, 1997
filing date -
Mar 31, 1995
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Abstract
The present invention provides an aqueous polytetrafluoroethylene dispersion composition characterized in that the composition comprises 30 to 65 wt. % of polytetrafluoroethylene and a polyoxyethylene alkyl ether in an amount of 2 to 10 wt. % based on the polytetrafluoroethylene, the polyoxyethylene alkyl ether being represented by the formula RO(CH.sub.2 CH.sub.2 O)nH wherein R is a saturated or unsaturated hydrocarbon group having 8 to 18 carbon atoms, and n is 5 to 18, having a cloud point of over 45.degree. C. to not higher than 85.degree. C. and containing 65 to 70 wt. % of ethylene oxide in the molecule.
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