Patent ID: 7060772
Filing Date: 2006-06-13
Classification: C08F

Abstract:
1. A polymer having a melting point of at least 160° C., having from 60 to 99.99% by weight of units derived from tetrafluoroethylene, from 0 to 30% by weight of units derived from hexafluoropropylene, from 0 to 10% by weight of units derived from other olefinic fluorinated or non-fluorinated monomers, from 0 to 35% by weight of units derived from perfluoro alkyl vinyl ether having from 1 to 5 carbon atoms in the alkyl radical, and from 0.01 to 35% by weight of units derived from one or more unbranched perfluoro vinyl ethers of the formula: where n is an integer from 2 to 6 and R