Patent ID: 7381765

Claim:
A composition comprising: (a) a continuous polymeric phase of fluoropolymer selected from the group consisting of (1) fluoroelastomer vulcanized to provide a compressive set value from about 5 to about 100 percent of a mathematical difference between a non-vulcanized compressive set value for said fluoroelastomer and a fully-vulcanized compressive set value for said fluoroelastomer; (2) fluoroelastomer thermoplastic vulcanizate vulcanized to provide a compressive set value from about 5 to about 100 percent of a mathematical difference between a non-vulcanized compressive set value for said fluoroelastomer of said fluoroelastomer thermoplastic vulcanizate and a fully-vulcanized compressive set value for said fluoroelastomer of said fluoroelastomer thermoplastic vulcanizate; (3) fluoroelastomer-based thermoplastic elastomer vulcanized to provide a compressive set value from about 5 to about 100 percent of a mathematical difference between a non-vulcanized compressive set value for said thermoplastic elastomer and a fully-vulcanized compressive set value for said thermoplastic elastomer, and (4) a blend of fluoroelastomer precursor gum and thermoplastic wherein said precursor gum has a glass transition temperature, a decomposition temperature, a Mooney viscosity of from about 0 to about 150 ML 1+10 at 121 degrees Celsius, and, at a temperature having a value that is not less than said glass transition temperature and not greater than said decomposition temperature, a compressive set value from about 0 to about 5 percent of a mathematical difference between a non-vulcanized compressive set value for fluoroelastomer derived from said fluoroelastomer precursor gum and a fully-vulcanized compressive set value for said derived fluoroelastomer; and (b) a dispersed phase of conductive particulate, said dispersed phase comprising a plurality of conductive particles dispersed in said continuous polymeric phase, so that said composition provides an electrically conductive polymeric material having a post-cured electrical resistivity of less than or about 1×10 −3 Ohm-m at 20 degress Celsius.