Fluoroacrylate-mercaptofunctional copolymers
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United States of America Patent
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Feb 23, 2010
Grant Date -
Mar 20, 2008
app pub date -
Sep 21, 2007
filing date -
Dec 28, 2004
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Abstract
A copolymer comprises repeating units derived from at least one co-reactant comprising two or more mercapto functional groups, and repeating units derived from a fluoroacrylate comprising the reaction product of: (a) at least one fluorochemical alcohol represented by the formula: C.sub.4F.sub.9--X--OH wherein: ##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, n=1 to 5, y=0 to 6, and q=1 to 8; (b) at least one unbranched symmetric diisocyanate; and (c) at least one hydroxy-terminated alkyl (meth)acrylate or 2-fluoroacrylate monomer having 2 to about 30 carbon atoms in its alkylene portion.
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