| abstract |
The double-sided adhesive tape of the present invention comprises: preparing a frame-shaped double-sided adhesive tape 1 having an outer shape of a rectangle having a length of 61mm and a width of 49mm, an inner shape of a rectangle having a length of 57mm and a width of 45mm, and a width of 2mm, and bonding a first acrylic resin plate 2 and a second acrylic resin plate 3 via the frame-shaped double-sided adhesive tape 1 to obtain a laminate 11, feeding air into the internal space 11A of the laminate 11 from a through hole 2a of the first acrylic resin plate 2 of the laminate 11 to adjust the internal pressure of the internal space 11A to 30KPa, and performing the pressure test until peeling occurs at least at one interface between the frame-shaped double-sided adhesive tape 1 and the first acrylic resin plate 2 and the second acrylic resin plate 3, so that the time for starting the decrease in the internal pressure of the internal space 11A of the laminate 11 is 50 minutes or more. |