Patent ID: 8709317

Claim:
A process for producing a mold for nanoimprinting comprising: a step of forming a layer of a photocurable resin composition on the surface of a support substrate; a step of overlaying a master mold having a fine concavo-convex structure on its mold surface and the support substrate to sandwich the photocurable resin composition between the mold surface of the master mold and the surface of the support substrate; a step of curing the photocurable resin composition in a state where the photocurable resin composition is sandwiched to form a mold base having on its surface a fine concavo-convex structure that is reverse of the fine concavo-convex structure on the master mold surface; a step of separating the mold base and the master mold; a step of forming a metal oxide layer on the surface having the concavo-convex structure of the mold base; and a step of forming a release layer on the surface of the metal oxide layer, wherein the method of forming the metal oxide layer is a sputtering method using the metal oxide as a target, wherein the mold for nanoimprinting comprises the mold base having on its surface a fine concavo-convex structure, the metal oxide layer on the surface of the fine concavo-convex structure, and the release layer on the surface of the metal oxide layer, and wherein the mold for nanoimprinting is light transmitting.