WATER AND OIL REPELLANT COMPOSITION

摘要

A water and oil repellent composition which can impart an excellent water and oil repellency to an object, even if it is processed at a low temperature, and which can achieve a water and oil repellent treatment providing a soft hand. The water and oil repellent composition which has as an essential component a copolymer consisting essentially of polymerized units of the following monomer (a) and polymerized units of the following monomer (b). monomer (a) : an R f monomer wherein the melting point of fine crystals derived from the R f groups of the homopolymer does not exist or is at most 50°C. monomer (b) : a monomer having no R f group, wherein the melting point of fine crystals derived from the side chains of the homopolymer is at least 30°C.