Patent ID: 8299155
Filing Date: 2012-10-30
Classification: C08J,C08K,C08L,C09D

Abstract:
1. A method for producing an aqueous fluoropolymer dispersion comprising the steps of: polymerizing a fluoromonomer in an aqueous medium in the presence of a fluorinated surfactant (A) having a molecular weight lower than 1000 to obtain an aqueous fluoropolymer dispersion comprising a particle of fluoropolymer as dispersed in the aqueous medium, eliminating the fluorinated surfactant (A) to obtain an aqueous fluoropolymer dispersion containing the, fluorinated surfactant (A) of not higher than 100 ppm of the mass of the fluoropolymer, and adding an anionic surfactant (B) other than said fluorinated surfactant (A) to the aqueous fluoropolymer dispersion, wherein the anionic surfactant (B) is C