TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The molar ratio of the repeating unit (a) and repeating unit (b) is 0.01/1-10/1. The fluoromonomer is of formula: CH2=C(-Cl)-C(=O)-Y'-Z-Rf (I). The non-fluorine monomer is an acrylate ester compound of formula: CH=CR1-C(=O)O-R2 (II). The non-fluorine monomer contains acrylate of formula: CH2=CHCOOA1 having 12-30C optionally branched hydrocarbon group, or methacrylate monomer of formula: CH=CR11-C(=O)O-R12 having glass transition point (Tg) or melting point (Tm) of 50 degrees C or more. The optionally branched hydrocarbon group in the acrylate is 12-22C alkyl group. The compound (II) is chosen from lauryl acrylate, myristyl acrylate, cetyl acrylate, stearyl acrylate, behenyl acrylate, cyclohexyl acrylate, isobornyl acrylate, bornyl acrylate, adamantly acrylate, dicyclopentanyl acrylate, dicyclopentenyl acrylate, tricyclodecanyl acrylate, phenyl acrylate, naphthyl acrylate, benzyl acrylate, 2-t-butylphenyl acrylate, naphthyl acrylate, methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, t-butyl methacrylate, cyclohexyl methacrylate, isobornyl methacrylate, bornyl methacrylate, adamantyl methacrylate, dicyclopentanyl methacrylate, dicyclopentenyl methacrylate, tricyclodecanyl methacrylate, phenyl methacrylate, naphthyl methacrylate, benzyl methacrylate, (2-dimethylamino)ethyl methacrylate, aziridinyl methacrylate, dicyclopentenyl methacrylate and methyl chloroacrylate. The reaction group is hydroxyl group. The cationic surfactant is ammonium salt of formula: (R51)pN+(R52)4-pX-. The nonionic surfactant is formula: R61O-(CH2CH2O)r-(R662O)s-R63.Y'=-O- or -NH-;Z=direct bond or bivalent organic group;Rf=1-20C fluoroalkyl;R1=H, halo or 1-4C alkyl;R2=1-30C hydrocarbyl, preferably aliphatic, aromatic or aroma aliphatic;A1=alkyl of formula: CnH2n+1;n=12-30;R11=1-4C alkyl, H or halo;R12=optionally branched or cyclic 1-30C aliphatic, 6-20C aromatic or 7-25 aroma aliphatic R51=optionally branched and saturated 12C aliphatic;R52=H or 1-4C alkyl, benzyl, or polyoxyethylene group, in which the number of oxyethylene group is 1-50;X=anion;p=1 or 2;R61=1-22C alkyl or 2-22C alkenyl;R62=3C or more alkylene;R63=H, 1-22C alkyl or 2-22C alkenyl;r=2 or more;ands=0, 1 or more.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The fluoropolymer (A) further contains repeating unit (c) of monomer containing reaction group in a molecule as copolymerizable monomer. The surface treating agent further contains block-forming polyisocyanate (C), and aqueous medium (D) which is aqueous dispersion liquid.