Patent ID: 8461230

Claim:
A process for producing an aqueous polytetrafluoroethylene dispersion for coagulation processing, which comprises adding a synthetic adsorbent having a specific surface area of from 100 to 2,000 m 2 /g, to an aqueous polytetrafluoroethylene dispersion containing from 45 to 70 mass % of polytetrafluoroethylene microparticles having an average particle size of from 0.10 to 0.50 μm and from 2.2 to 6 mass %, based on the mass of the polytetrafluoroethylene microparticles, of a nonionic surfactant, in a proportion of from 0.5 to 15 mass %, based on the mass of the polytetrafluoroethylene microparticles, followed by stirring or shaking and then by separation into a liquid phase and a solid phase, and recovering the liquid phase.