Water- and oil-repellent fluorourethanes and fluoroureas
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United States of America Patent
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Sep 11, 2007
Grant Date -
Jun 29, 2006
app pub date -
Dec 12, 2005
filing date -
Dec 28, 2004
priority date (Note) -
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Abstract
A fluorochemical compound comprises the reaction product of: (a) the reaction product of: (i) at least one fluorochemical alcohol represented by the formula: C.sub.nF.sub.2n+1--X--OH wherein: n=1 to 6, ##STR00001## R=hydrogen or an alkyl group of 1 to 4 carbon atoms, m=2 to 8, R.sub.f=C.sub.nF.sub.2n+1, y=0 to 6, q=1 to 8; and (ii) at least one unbranched symmetric diisocyanate, and (b) at least one co-reactant comprising two or more functional groups that are capable of reacting with an isocyanate group.
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