Perfluorinated alkyl hydrophobe hydroxyalkylcellulose associative thickeners
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United States of America Patent
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Mar 1, 1994
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N/A
app pub date -
Apr 2, 1992
filing date -
Apr 2, 1992
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Expired
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Abstract
A purified hydroxyethylcellulose (HEC) or hydroxypropylcellulose (HPC) reacts with a perfluorinated alkyl glycidyl ether to produce an associative thickener wherein a fluorinated C.sub.8 chain is nearly as effective as a hydrocarbyl C.sub.16 straight chain hydrophobe. A preferred glycidyl ether is prepared by reacting a terminal hydroxyl of a perfluorinated surfactant with epichlorohydrin.
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