Patent ID: 6825304
Filing Date: 2004-11-30
Classification: C08J,C08K,H01B

Abstract:
Dielectric films obtained from a PTFE-based formulation comprising:1) a PTFE latex made of particles whose diameter is in the range of 5 nm to 100 nm, comprising an anionic fluorinated surfactant in an amount in the range of 2% to 25% by weight, based on PTFE; 2) a non-ionic fluorinated surfactant added to the PTFE latex in an amount in the range of 18% to 60% by weight, based on the PTFE, wherein the dielectric films are obtained from the formulation by depositing the formulation onto a substrate, then sintering the film obtained at a temperature above the PTFE melting point, and then air-cooling.