WATER-RESISTANT/OIL-RESISTANT AGENT COMPOSITION, ARTICLE TREATED WITH THE COMPOSITION, AND PROCESSES FOR PRODUCTION OF THE COMPOSITION AND THE ARTICLE

摘要

To provide a water/oil resistant composition which can impart a sufficient water/oil resistance to a base material even though a fluorinated copolymer having an R f group with at most 6 carbon atoms is used, said water/oil resistance being not substantially influenced by an adjuvant or the pH of dilution water, and which has little odor; an article treated therewith; and processes for their production. A water/oil resistant composition having a fluorinated copolymer dispersed or dissolved in a medium, wherein the fluorinated copolymer is one having one, some or all of amino groups in a fluorinated copolymer comprising structural units based on a monomer (a) having a C 1-6 R f group and structural units based on a monomer (b) having an amino group, converted to form a salt with an organic acid comprising an organic acid having a pKa of from 2.0 to 4.0.