HYDROPHILIC OIL-REPELLENT TREATING AGENT

摘要

PURPOSE:To obtain treating agent containing a specific fluorinated hydrophilic oil-vapellent silane compound and a specific hydrophilic silane compound, capable of providing good stain-proofing properties to various kinds of substrates, excellent also in permeability of water and capable of readily removing stain of the substrate. CONSTITUTION:The treating agent contains (A) at least one kind of fluorinated silane compounds of formula I and formula II [Pf<1> is perfluoroalkyl or perfluoroalkylene ether; Pf<2> is perfluoroalkylene or perfluoroalkylene ether; Q<1> is divalent organic group; Z<1> is monovalent organic group; Y<1> is halogen or hydrolyzable group; (a) and (b) are 1-3, with the proviso that (a+b) is <=4] and (B) a hydrophilic silane compound of formula III [Hy is hydrophilic organic group; A is alkylene; Z<2> is monovalent organic group; Y<2> is halogen or hydrolyzable group], preferably in a weight ratio of the component A/the component B of 0.1-5. This treating agent is preferably prepared by mixing the component A with the component B in an organic solvent. As the organic solvent, methanol, etc., is preferably used.