FLUOROPOLYMER DISPERSION AND PROCESS FOR PRODUCING FLUOROPOLYMER DISPERSION

A fluoropolymer solid composition which contains a fine particle comprising a fluoropolymer, said fluoropolymer having an acid/acid salt group, said acid/acid salt group being a sulfonic acid group, -SO2NRR, a carboxyl group, -SO3NRRRR, -SO3M1/L, -COONRRRR or -COOM1/L (in which R and R are the same or different and each represents a hydrogen atom, an alkali metal, an alkyl group or a sulfonyl-containing group, R, R, R and R are the same or different and each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R, R, R and R are the same or different and each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, M and M are the same or different and each represents a metal whose valence is L, and said metal whose valence is L is a metal belonging to the group 1, 2, 4, 8, 11, 12 or 13 of the periodic table); said fine particle comprising the fluoropolymer containing, at the proportion of at least 25% by mass thereof, a spherical fluoropolymer fine particle, and said spherical fluoropolymer fine particle being substantially spherical.