NOVELTY - A coating composition contains metal oxide particles (A) having number average particle diameter of 1-400 nm, and polymer particles (B). The content of water-phase component in particles (B) is 20 %mass or less, and satisfies specific relation.    USE - Coating composition is used for coating film used for laminate used as protection component of solar cell module and reflector apparatus used in solar thermal power generation system (all claimed).    ADVANTAGE - The coating composition has excellent reflection prevention property, solvent-proof property, antistatic property and heat resistance, and provides coating film having excellent transparency, hydrophilicity, stain resistance and durability.    DETAILED DESCRIPTION - coating composition contains metal oxide particles (A) having number average particle diameter of 1-400 nm, and polymer particles (B). The content of water-phase component in particles (B) is 20 %mass or less, and is represented by formula: (dry mass of filtrate obtained by filtering particles (B) with molecular weight cut-off of 50000)x (100-total-solid mass)/(mass of filtrate-dry mass of filtrate)x 100/(total-solid mass). INDEPENDENT CLAIMS are included for the following:    (1) coating film formed using the coating composition;    (2) laminate, which has the coating film formed on surface(s) of a base material;    (3) manufacture of laminate, which involves applying the coating composition on surface(s) of base material, forming coating film, and heating at 70 degrees C or more or 0.1 kPa or more;    (4) solar cell module, which has a back sheet arranged facing the laminate, and electrical generating element arranged between back sheets;    (5) reflector apparatus, which has a light reflector, laminate for protecting reflecting surface of light reflection light, and a support for supporting reflective mirror; and    (6) solar thermal power generation system, which has an apparatus for converting sunlight condensed by reflector apparatus to electrical energy.