Abstract: A method for assembling an apparatus including a display sheet having a non-transparent part in at least a part of the display sheet, has a bonding step of bonding the display sheet to a housing. The bonding step has a first step of attaching the display sheet to the housing via a UV curable adhesive, and a second step of causing an ultraviolet light emitting apparatus to irradiate, from an external surface side of the display sheet. The display sheet is attached to the housing with ultraviolet light after the first step so that the ultraviolet light passes through at least a part of the non-transparent part of the display sheet and cures the UV curable adhesive.

Abstract: A cure degree evaluation method for evaluating a cure degree of an active energy ray-curable resin composition is a method for evaluating the cure degree of the active energy ray-curable resin composition includes the steps of: irradiating the active energy ray-curable resin composition with an active energy ray; and evaluating the cure degree of the active energy ray-curable resin composition in accordance with a color of the active energy ray-curable resin composition. The active energy ray-curable resin composition contains at least a radical polymerization compound, a leuco dye, and a radical polymerization initiator.

Abstract: The present invention provides (A) an electronic part including a metal part combined with a non-metal part so as to cover the non-metal part, which electronic part can be assembled (i) with excellent workability, (ii) without requiring a high-temperature condition, and (iii) in a short period of time and (B) a method for manufacturing the electronic part. An electronic part (10) in accordance with the present invention includes (I) a non-metal part (11) and (II) a metal part (14) covering a covered region (11b) provided on a surface of the non-metal part (11). The covered region (11b) and the metal part (14) are combined together via an adhesive layer (12) provided by curing an ultraviolet anaerobic curing adhesive containing a photopolymerization initiator and organic peroxide.

Abstract: A method for assembling an apparatus including a display sheet having a non-transparent part in at least a part of the display sheet, has a bonding step of bonding the display sheet to a housing. The bonding step has a first step of attaching the display sheet to the housing via a UV curable adhesive, and a second step of causing an ultraviolet light emitting apparatus to irradiate, from an external surface side of the display sheet. The display sheet is attached to the housing with ultraviolet light after the first step so that the ultraviolet light passes through at least a part of the non-transparent part of the display sheet and cures the UV curable adhesive.

Abstract: Provided are a method for evaluating a cure degree of an active energy ray-curable resin composition simply, highly accurately, and quantitatively, a cure degree evaluation sheet for use in the method, and a cure degree evaluation system. A cure degree evaluation method in accordance with the present invention for evaluating a cure degree of an active energy ray-curable resin composition is a method for evaluating the cure degree of the active energy ray-curable resin composition, the method including the steps of: irradiating the active energy ray-curable resin composition with an active energy ray; and evaluating the cure degree of the active energy ray-curable resin composition in accordance with a color of the active energy ray-curable resin composition, the active energy ray-curable resin composition containing at least a radical polymerization compound, a leuco dye, and a radical polymerization initiator.