PROCESS FOR PREPARING ORGANIC DISPERSION OF ACID TYPE FLUORINATED POLYMER

摘要

An organic dispersion is prepared of an acid type fluorinated polymer by copolymerizing a fluorinated ethylenically unsaturated monomer and a functional monomer having an acid type functional group in an aqueous medium in the presence of a polymerization initiator source to obtain an aqueous dispersion of an acid type fluorinated polymer having the functional monomer unit content of 5 to 40 mol %; and replacing an aqueous medium of the aqueous dispersion with a hydrophilic organic medium whilst maintaining the dispersion.