ANTIFOULING COMPOSITION, METHOD FOR ITS PRODUCTION AND ARTICLE TREATED THEREWITH

摘要

Disclosed is a fluorine-based stain-proofing agent composition using a sh ort-chain perfluoroalkyl group. This stain-proofing agent composition can be in the form of an aqueous dispersion containing almost no volatile organic solvent, while exhibiting good soil release property (SR property). Specific ally disclosed is a stain-proofing agent composition characterized by contai ning a fluorine-containing copolymer which has an anionic group at an end of the main chain, while containing 30-70% by mass of a polymerization unit (a ') having a perfluoroalkyl group with 1-6 carbon atoms, 20-69% by mass of a polymerization unit (b') having an alkylene oxide chain and 1-10% by mass of a polymerization unit (c') having an amino group.