Patent ID: 9018309
Filing Date: 2015-04-28
Classification: C08K,C08L

Abstract:
1. A curable fluorine-containing elastomer composition formed by combining a first unfilled curable perfluoropolymer comprising tetrafluoroethylene, a first perfluoroalkylvinyl ether and at least one first cure site monomer having at least one cure site, wherein tetrafluoroethylene is present in the first curable perfluoropolymer in an amount of at least about 50 mole percent; a second curable perfluoropolymer comprising tetrafluoroethylene, a second perfluoroalkylvinyl ether and at least one second cure site monomer having at least one cure site, wherein the second curable perfluoropolymer comprises fluoroplastic particles in a matrix of the second curable perfluoropolymer, wherein such fluoroplastic has a functional curesite and is incorporated into the second curable perfluoropolymer matrix; and at least one curative.