To provide a novel polysilsesquinoxane resin composition usable for a flexible display substrate and excellent in heat resistance, transparency, delamination characteristics, passivation characteristics and anti-scratch effect at high temperature.SOLUTION: A resin composition comprises a random copolymer prepared using 1H,1H,2H,2H-perfluorooctyltriethoxysilane, diphenyldimethoxysilane, triethoxy[3-[(3-ethyl-3-oxetanyl)methoxy]propyl]silane, and trimethoxyoctylsilane.SELECTED DRAWING: Figure 1
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