Fluoroelastomer composition having excellent low temperature properties
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United States of America Patent
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Issued Date -
Nov 25, 2004
app pub date -
Mar 15, 2004
filing date -
May 21, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Compositions containing fluoroelastomers, curative and a fluorinated polyether of the general formula --[CF.sub.2CFH--O--R.sub.f--CF.sub.2CH.s-ub.2O].sub.n--, wherein n is such that the weight average molecular weight, M.sub.w, is between 2000 and 100,000 and R.sub.f is selected from the group consisting of a) --(CF.sub.2).sub.s--, wherein s is 1 to 10; and b) --[CF.sub.2CF(CF.sub.3)O].sub.t(CF.sub.2).sub.u--, wherein u is 1 to 10 and t is 1 to 20, exhibit excellent low temperature properties.
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