Patent ID: 10976475

Abstract:
The antifouling film includes a substrate, and a polymer layer disposed on a surface of the substrate and including on a surface thereof an uneven structure provided with multiple projections at a pitch not longer than a wavelength of visible light. The polymer layer is a cured product of a polymerizable composition, the polymerizable composition containing, in terms of active constituents, 15 to 40 wt % of an urethane acrylate containing six or more functional groups, 35 to 60 wt % of a multifunctional acrylate containing four or more functional groups and 3 to 15 ethylene oxide groups for each functional group, 15 to 30 wt % of a monofunctional acrylate with no ethylene oxide group, 0.5 to 10 wt % of a fluorine release agent containing a perfluoropolyether group and having a fluorine atom concentration of 50 wt % or lower, and 0.5 to 5 wt % of a polymerization initiator.