TFE-based thermoprocessable copolymers
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United States of America Patent
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Jun 9, 2009
Grant Date -
Feb 2, 2006
app pub date -
Jul 28, 2005
filing date -
Jul 30, 2004
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Expired
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Abstract
TFE-based thermoprocessable copolymers having the following composition, expressed in percentage by moles on the total of the monomers: A) from 0.01 to 15% of the monomer of formula: CF.sub.2.dbd.CFOCF.sub.2OCF.sub.3 (a); A1) tetrafluoroethylene from 99.99 to 85%; optionally B) one or more (per)fluorinated comonomers having at least one unsaturation of ethylene type, different from TFE; the sum of the molar percentages A)+B) being such as to give polymers showing at least one melting peak at the thermogravimetric analysis (DSC).
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