Patent ID: 8690559

Claim:
A nano-imprinting resin stamper comprising a micro structure layer on a light-transmissive support basal material, the micro structure layer being formed of a polymer of a resin composition that contains a silsesquioxane derivative having a plurality of polymerizable functional groups, another polymerizable resin component having a plurality of polymerizable functional groups and different from the silsesquioxane derivative, and a photopolymerizable initiator, wherein a content of the silsesquioxane derivative is at least 50 mass % or more of the resin composition, a content percentage of the photopolymerizable initiator is equal to or more than 0.3 mass % and equal to or less than 0.6 mass % relative to a total mass of the silsesquioxane derivative and the polymerizable resin component, and the micro structure layer permits equal to or more than 80% of light to pass therethrough at a wavelength of 365 nm.