NOVELTY - A hydrophilic component has a hydrophilic film, an undercoat, and a substrate. The hydrophilic film is formed using a coating composition containing hydrophilic polymer (A), and alkoxide compound (B) of element chosen from silicone, titanium, zirconium and aluminum. The hydrophilic polymer has a silicon-containing structural unit (1a), and a multivalent organic coupling group-containing structural unit (1b) in terminal of a polymer chain.    USE - Hydrophilic component is used for cosmetics, including but not limited to optical filter, optical lens, eyeglass lens, window glass for building, gondola of motor vehicle, traffic sign, sound insulating wall, housing equipment, roof material for snowy countries, and cover for heat collecting device such as solar cell cover.    ADVANTAGE - The hydrophilic component has excellent stain resistance, wear-resistance, flaw resistance, quick-drying ability and fog prevention property.    DETAILED DESCRIPTION - A hydrophilic component has a hydrophilic film, an undercoat, and a substrate. The hydrophilic film is formed using a coating composition containing hydrophilic polymer (A), and alkoxide compound (B) of element chosen from silicone, titanium, zirconium and aluminum. The hydrophilic polymer has a silicon-containing structural unit of formula: (R1)3-m(OR2)mSi-L1- (1a), and a multivalent organic coupling group-containing structural unit of formula: -(C(-R3)(-R5)-C(-R4)(-L2-A))- (1b) in terminal of a polymer chain.    R1-R5=H or 8C or less hydrocarbon;    L1=bivalent coupling group chosen from -CO2-, -NHCO-, -NHCONH-, -NHCO2, -O-, and -NH-;    L2=multivalent organic coupling group;    A=-OH, -ORa, -CORa, -CO2Re, -CON(Ra)(Rb), -N(Ra)(Rb), -NHCORd, -NHCO2Ra, -OCON(Ra)(Rb), -NHCON(Ra)(Rb), -SO2Re, -OSO3Re, -SO2Rd, -NHSO2Rd, -SO2N(Ra)(Rb), -N(Ra)(Rb)(Rc), -N(Ra)(Rb)(Rc)(Rg), -PO3(Re)(Rf), -OPO3(Re)(Rf) or -OP3(Rd)(Re);    Ra-Rc=H, or 1-8C linear, branched or cyclic alkyl;    Rd=1-8C linear, branched or cyclic alkyl;    Re,Rf=H or 1-8C branched or cyclic alkyl, alkali metal, alkaline-earth metal, or onium;    Rg=1-8C linear, branched or cyclic alkyl, halogen, inorganic anion or organic anion;and    m=0, 1, or 2.    . An INDEPENDENT CLAIM is included for manufacture of the hydrophilic component.