Laminate

A laminate, comprising a laminated structure of a pressure-sensitive adhesive sheet, a reinforcing agent layer, and an adherend,

• wherein an outermost layer of the pressure-sensitive adhesive sheet on a reinforcing agent layer side is a pressure-sensitive adhesive layer,
• wherein the laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body of the pressure-sensitive adhesive sheet, the reinforcing agent layer, and a SUS plate at 23° C. and 50% RH, and at a tensile rate of 300 mm/min and a peel angle of 180°,
• wherein the laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body of the pressure-sensitive adhesive sheet, the reinforcing agent layer, and a polycarbonate plate at 23° C. and 50% RH, and at a tensile rate of 300 mm/min and a peel angle of 180°,
• wherein the laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body of the pressure-sensitive adhesive sheet, the reinforcing agent layer, and an aluminum plate at 23° C. and 50% RH, and at a tensile rate of 300 mm/min and a peel angle of 180°, and
• wherein when a pre-immersion adhesive strength when the pressure-sensitive adhesive sheet is peeled from the laminated structural body of the pressure-sensitive adhesive sheet, the reinforcing agent layer, and the SUS plate at 23° C. and 50% RH, and at a tensile rate of 300 mm/min and a peel angle of 180° is represented by A0 (N/10 mm), and a post-immersion adhesive strength when the laminated structural body is immersed in warm water (40° C.) and held therein for 24 hours, and then the pressure-sensitive adhesive sheet is peeled from the laminated structural body at 23° C. and 50% RH, and at a tensile rate of 300 mm/min and a peel angle of 180° is represented by A1 (N/10 mm), the laminate has a pressure-sensitive adhesive strength maintenance ratio of 85% or more calculated from (A1/A0)×100.