Oil repellent composition, its production method and processing method of an article

The present invention provides a surface of an article can impart sufficient dynamic water repellency and after air-drying water repellency and low environmental impact oil repellent composition, and a method for producing an article handling method. Uses a copolymer comprising a water-repellent and oil repellent composition of the medium, the copolymer having constituting units based on the following monomer (a) constituting unit based on the following monomer (b) and based on the following monomer (c ) constituent units, and a mass average molecular weight of 40,000 or more. Monomer (a) is compound (ZY) nX represented. Z is a polyfluoroalkyl group having a carbon number 1 to 6, Y is a divalent organic group, etc., n is 1 or 2, X is a polymerizable unsaturated group. Monomer (b) is a homopolymer glass transition temperature below 50 ℃ of olefins. Monomer (c) having no (meth) acrylate having no polyfluoroalkyl group and an alkyl group having a carbon number of 12 to 30.