NOVELTY - A laminated film has particle content layer formed on both surfaces of film (A) having cyclic olefin-type polymer. The particle content layer is formed using curable composition containing surface-modified oxide particles and compound having alicyclic structure and 2 or more polymerizable unsaturated group in a molecule. The surface-modified oxide particles is formed by mixing oxide particles of element chosen from silicon, aluminum, titanium, zirconium, zinc, magnesium, iron, potassium and calcium, and organic compound containing polymerizable unsaturated group.    USE - Laminated film is used for electroconductive film, optical film and substrate film (all claimed). Can also be used in manufacture of liquid crystal display element, plasma display panel, organic electroluminescent element, printed circuit board, multilayered circuit board, solar cell substrate, touch panel, optical component, multi-chip module and large integrated circuit.    ADVANTAGE - The laminated film has excellent dimensional stability even at high temperature, transparency, curl resistance, peel-proof property, flexibility, reflection prevention property, antistatic property, contamination resistance, water resistance, oil resistance, electromagnetic wave shielding property, antimicrobial property, ultraviolet ray shielding property, electroconductivity, flame retardance, insulation characteristics, crack-proof property and heat resistance.    DETAILED DESCRIPTION - A laminated film has particle content layer formed on both surfaces of film (A) having cyclic olefin-type polymer. The particle content layer is formed using curable composition containing surface-modified oxide particles and compound having alicyclic structure and 2 or more polymerizable unsaturated group in a molecule. The surface-modified oxide particles is formed by mixing oxide particles of element chosen from silicon, aluminum, titanium, zirconium, zinc, magnesium, iron, potassium and calcium, and organic compound containing polymerizable unsaturated group. The total thickness of the particle content layer is 0.1-30, when the thickness of film (A) is set to 100. INDEPENDENT CLAIMS are included for the following:    (1) manufacture of laminated film, which involves coating curable composition containing curable composition and solvent on both surfaces of the film, drying and hardening the obtained coating film;    (2) electroconductive laminated film, which has electroconductive layer on surface of the laminated film;    (3) optical film, which has vapor deposition layer containing metal or metal oxide on surface of the laminated film; and    (4) substrate film, which has patterning layer formed using photosensitive resin composition on surface of laminated film.