Patent ID: 7968625

Claim:
A process for producing an aqueous fluoropolymer dispersion which comprises adding a specific compound to a to-be-treated aqueous fluoropolymer dispersion containing a particle of fluoropolymer dispersed therein, said to-be-treated aqueous fluoropolymer dispersion containing a fluorinated surfactant (A) with a molecular weight lower than 1000 in an amount of 100 ppm or less of said fluoropolymer, and said specific compound being (3) a fluorinated surfactant (B) with a molecular weight lower than 1000 differing from said fluorinated surfactant (A) and/or (4) an aliphatic carboxylic acid or a salt thereof, which compound is added in total amount of 10 to 5000 ppm of said fluoropolymer, wherein the aliphatic carboxylic acid or a salt thereof is a saturated or unsaturated aliphatic carboxylic acid having 9 to 13 carbon atoms and optionally having —OH as a substituent for a terminal H, or a salt thereof.